Earthquakes around the world

[Puma]

WORLDWIDE EARTHQUAKE REPORT MARCH 15_2023

●M 5.3 - 179 km ESE of Sarangani, Philippines
2023-03-15 21:25:41 (UTC)
4.678°N 126.915°E. 70.5 km depth
USGS earthquake alert

https://twitter.com/x/status/1636121524888371200

●M 5.0 - central Mid-Atlantic Ridge
2023-03-15 03:39:49 (UTC)
0.862°N 29.228°W. 10.0 km depth
USGS earthquake alert

● Seismic swarm in Michoacan Mexico.

●M3.6 Loc. 26 km SOUTHWEST of COALCOMAN, MICHOACÁN
●M4.6 Loc. 7 km NORTHEAST of PERIBAN, MICHOACAN
●M4.5 Loc. 10 km NORTHEAST of PERIBAN, MICHOACAN
●M3.9 Loc. 8 km NORTH NORTHEAST of PERIBAN, MICHOACAN
●M4.4 Loc. 8 km NORTH NORTHEAST of PERIBAN, MICHOACAN
●M4.1 Loc. 2 km NORTHEAST of PERIBAN, MICHOACAN
●M4.1 Loc. 3 km NORTH NORTH of PERIBAN, MICHOACAN
●M4.0 Loc. 5 km NORTH of PERIBAN, MICHOACAN
●M4.0 Loc. 2 km NORTH NORTH EAST of PERIBAN, MICHOACAN
●M3.6 Loc. 7 km NORTHWEST of PERIBAN, MICHOACAN
●M3.7 Loc. 12 km NORTHEAST of PERIBAN, MICHOACAN
●M3.5 Loc. 14 km NORTHEAST of PERIBAN, MICHOACAN
●M3.5 Loc. 5 km EAST of PERIBAN, MICHOACAN
●M3.4 Loc. 11 km NORTHEAST of PERIBAN, MICHOACAN
●M3.4 Loc. 9 km NORTH EAST of PERIBAN, MICHOACAN
●M3.6 Loc. 11 km NORTHEAST of PERIBAN, MICHOACAN
●M3.7 Loc. 9 km NORTHEAST of PERIBAN, MICHOACAN

https://twitter.com/x/status/1636019695538012160

M 4.5 - 212 km SW of José María Morelos, Mexico
2023-03-15 06:36:26 (UTC)
18.552°N 106.819°W. 10.0 km depth
USGS earthquake alert

https://twitter.com/x/status/1635902623353298944

A seismic "swarm" occurred this March 15 in the state of Michoacán, the highest magnitude earthquake was registered at 08:44 local time and measured 4.6.

Throughout the day more than 20 earthquakes have been registered in Michoacán, most of them with epicenter in the municipality of Peribán.

Since the beginning of 2020, a seismic swarm began to be monitored in Michoacán. This was due to speculation about the possible emergence of a new volcano in the state (especially due to the proximity to other volcanoes such as Paricutín and Tancítaro).

March 15, 2023
The area has complex tectonics and active volcanism, the seismic swarm could be due to magmatic intrusion.

https://twitter.com/x/status/1636043350447996935

● Seismic swarm in Puerto Rico

A seismic "swarm" occurred in Puerto Rico the highest magnitude earthquake was 4.2

M 2.5 - 2 km WSW of Fuig, Puerto Rico
M 2.7 - 6 km WSW of Guánica, Puerto Rico
M 2.5 - 5 km WSW of Guánica, Puerto Rico
M 3.1 - 4 km SW of Fuig, Puerto Rico
M 2.5 - Puerto Rico region
M 3.0 - 5 km WSW of Guánica, Puerto Rico
M 2.8 - Puerto Rico region
M 2.5 - 1 km ESE of Palmarejo, Puerto Rico
M 3.4 - 77 km N of Arecibo, Puerto Rico
M 3.5 - Puerto Rico region
M 2.8 - 6 km WSW of Guánica, Puerto Rico
M 3.1 - 5 km WSW of Guánica, Puerto Rico
M 2.7 - 6 km SW of Guánica, Puerto Rico
M 2.7 - 5 km WSW of Guánica, Puerto Rico
M 2.6 - 5 km WSW of Guánica, Puerto Rico
M 2.8 - 8 km SSE of Indios, Puerto Rico
M 2.9 - 5 km WSW of Fuig, Puerto Rico

M 4.2 - 6 km SW of Guánica, Puerto Rico
2023-03-15 07:51:46 (UTC)
17.929°N 66.957°W. 7.0 km depth
USGS earthquake alert

https://twitter.com/x/status/1635916449612005381

● Summary

Seismic activity level has been at  low levels in the last 24 hours. This is the last chart posted by Volcanodiscovery at 00:00 UTC on March 16 Global seismic activity chart
~2 quakes above magnitude 5
~40 quakes between magnitude 4 and 5
~117 quakes between magnitude 3 and 4
~354 quakes between magnitude 2 and 3
~672 quakes below magnitude 2 that people normally don't feel.
~1185 earthquakes in the past 24h (1280 earthquakes in the 24 hours prior to this report) Estimated combined seismic energy release: 5069 tons of TNT or 0.3 atomic bombs
Volcanodiscovery earthquake report 24h

 

[Puma]

Very strong magnitude 7.0 earthquake - South Pacific Ocean, New Zealand, on Wednesday, Mar 15, 2023 at 12:56 pm (GMT -12)

M 7.0 - Kermadec Islands region
2023-03-16 00:56:02 (UTC)
30.115°S 176.112°W. 22.1 km depth
USGS earthquake alert

https://twitter.com/x/status/1636171803893841924

Data for the same earthquake reported by different agencies

Mag.	Depth	Location	Source
6.5	12 km	New Zealand	GEONET (NZ)
7.0	22 km	New Zealand: Kermadec Islands Region	USGS
7.2	10 km	New Zealand: Kermadec Islands Region	GeoAu
6.2	10 km	New Zealand: Near Auckland	RENASS
7.0	10 km	New Zealand: Kermadec Islands Region	GFZ
7.0	22 km	New Zealand: Kermadec Islands Region	Raspberry Shake
7.0	10 km	New Zealand: Kermadec Islands Region	IRIS
7.0	0.8 km	New Zealand [Sea]	INGV
6.9	10 km	New Zealand: KERMADEC ISLANDS REGION	EMSC

Volcanodiscovery

A quadruple conjunction with Earth, the Sun, Mercury and Neptune may cause strong to major seismic activity from approximately 16 to 19 March. SSGEOS

 

[Maïanar]

Hi there,

I would like to know if some of you have informations about a potential earthquake in Dakar, Senegal ? I know West Africa is on a passive margin, but I have recents insights that a big collapse could occur In Dakar this spring. Maybe it could be an industrial blast like the one happend in Beyrouth in 2020. But as the Cassiopeans said "watch for africa" on the 25th of February session after the Turkish earthquake, something tickle my mind about the possibility of on occurrence in Dakar.

Earthquakes in Turkey have generated others earthquakes in the regions surrounding, like Syria. Small earthquakes occurs in Tunsia few days ago. Is this possible for the seismic waves to spread from Turkey to Senegal and wake up something there ?

Nice evening to all.

 

[Puma]

WORLDWIDE EARTHQUAKE REPORT MARCH 16_2023

Earthquakes shook the Middle East

● M 5.2 - Northwestern Iran
2023-03-16 11:47:15 (UTC)
38.486°N 45.073°E. 10.0 km depth
USGS earthquake alert

● M 5.1 - 6 km NNE of Ḩalabja, Iraq
2023-03-16 18:32:51 (UTC)
35.237°N 46.001°E. 10.0 km depth
USGS earthquake alert

● M 4.8 - 7 km W of Bolu, Turkey
2023-03-16 10:55:07 (UTC)
40.739°N 31.513°E. 10.0 km depth
USGS earthquake alert
The earthquake occurred in northern Turkey 8 km (5 mi) W of Bolu (pop: 96,600) In this area 24 years ago a magnitude 7.6 earthquake occurred 4.3 km east of Derince, Kocaeli, Turkey, on Tuesday, 17 August 1999. On the other hand this M4.8 earthquake is not part of the sequence (aftershock) of the M7.8 earthquake that shook Turkey on February 06, 2023.

Following the earthquakes that occurred on February 6, 2023 at 04:17 in Sofalıcı-Şehitkamil-Gaziantep and 13:24 in Ekinözü-Kahramanmaraş, as of March 16, 2023 at 20:30, a total of 15428 aftershocks have occurred in the region. @Kandilli_info vía Twitter

https://twitter.com/x/status/1635362020634800128

Earthquakes shook Canada

Earlier today, three earthquakes were recorded in the Peace River region of Alberta.

The first quake, with a magnitude of 4.8, occurred at 08:46 a.m. and was recorded 30 kilometers east-northeast of Reno. A second quake, with a magnitude of 5.0, was recorded at 08:59 am. Later, at 9:07 am, a third earthquake of magnitude 4.6 was recorded in the same region near Reno. No damage has been reported

● M 5.0 - 44 km ESE of Peace River, Canada
2023-03-16 14:59:10 (UTC)
56.095°N 116.623°W. 10.0 km depth
USGS earthquake alert

● M 4.8 - 44 km ESE of Peace River, Canada
2023-03-16 14:46:18 (UTC)
56.113°N 116.613°W. 9.8 km depth
USGS earthquake alert


Earthquakes shook Southeast Asia and New Zealand

An Aftershock of the M7.0 earthquake in Kermadec Islands
● M 5.2 - Kermadec Islands region
2023-03-16 01:46:10 (UTC)
30.163°S 176.421°W. 10.0 km depth
USGS earthquake alert

● M 5.2 - 256 km S of Kencong, Indonesia
2023-03-16 05:22:41 (UTC)
10.600°S 113.308°E. 10.0 km depth
USGS earthquake alert

● M 5.0 - 215 km NNE of Colonia, Micronesia
2023-03-16 17:03:07 (UTC)
11.359°N 138.749°E. 10.0 km depth
USGS earthquake alert

A seismic "swarm" occurred in Puerto Rico the highest magnitude earthquake was 4.2

Seismic swarm in Puerto Rico continues. The highest magnitude earthquake in the past 24 hours was 3.7, although it is worth mentioning that the intensity has decreased.

M 3.7 - Puerto Rico region
M 3.0 - 6 km WSW of Guánica, Puerto Rico
M 2.5 - 5 km SW of Guánica, Puerto Rico
M 3.1 - 5 km WSW of Guánica, Puerto Rico
M 2.8 - Puerto Rico region
M 2.7 - 4 km WSW of Guánica, Puerto Rico
M 2.7 - 7 km WSW of Guánica, Puerto Rico
M 2.5 - 4 km WSW of Guánica, Puerto Rico
M 2.6 - 5 km SW of Maricao, Puerto Rico
M 3.6 - 137 km NNE of Vieques, Puerto Rico
M 3.4 - 4 km N of Sabana Eneas, Puerto Rico
M 2.8 - 6 km SW of Guánica, Puerto Rico
M 2.6 - 5 km WSW of Guánica, Puerto Rico
USGS data

● Summary

Seismic activity level has been at high levels in the last 24 hours. This is the last chart posted by Volcanodiscovery at 00:00 UTC on March 17 Global seismic activity chart
~1 quake magnitude 7
~8 quakes between magnitude 5 and 6
~34 quakes between magnitude 4 and 5
~145 quakes between magnitude 3 and 4
~295 quakes between magnitude 2 and 3
~635 quakes below magnitude 2 that people normally don't feel.
~1118 earthquakes in the past 24h (1185 earthquakes in the 24 hours prior to this report) Estimated combined seismic energy release: 93477 tons of TNT or 5.8 atomic bombs
Volcanodiscovery earthquake report 24h

 

[Puma]

I know West Africa is on a passive margin, but I have recents insights that a big collapse could occur In Dakar this spring.

Hello again Maïmar, I am happy to give you my opinion in this your second post on the forum. First I have to state that I am not an expert, but I am interested in these topics.

Senegal is classified as a low level earthquake hazard according to currently available information.


Since 1900 Senegal has recorded:

~1 quake above magnitude 6
~1 quake between magnitude 5 and 6
~2 quakes between magnitude 4 and 5
Volcanodiscovery

Latest quake occurred 7 years ago a Magnitude 5.2, 54 km E of Louga, Senegal on February 19, 2016 And in fact the magnitude 6.3 earthquake of 39 years ago actually occurred in Guinea.

According to ThinkHazard this means that Senegal has a 2% probability of a potentially damaging earthquake occurring within the next 50 years.

So far there is no indication of a catastrophic earthquake. It may be necessary to monitor it more closely. As you can see in the image Senegal is not even close to a fault or plate boundary. And intra-plate earthquakes are usually very rare but they are still devastating.

The same is not true for the countries located in the Great Rift Valley for the reasons stated in the February session. Although the Cs told us to keep an eye on Africa and flooding, it seems that the area located in the Horn of Africa (Somali Plate) will be more relevant because of its proximity to the underground collapse in Mayotte.

Maybe it could be an industrial blast like the one happend in Beyrouth in 2020.

Or perhaps it is a more symbolic event. With the current economic turbulence over the collapse of Silicon Valley Bank, there will no doubt be other collapses. Perhaps it is time to pay attention to what is happening in Senegal in terms of its society and economy. So that you can make the right decisions regarding your future.

 

[Maïanar]

Hi @Puma

Thankhs a lot for your answer, it's really nice to have a better view of Senegal seismic background. Rare but not impossible, I will continue to pay attention on it.

Or perhaps it is a more symbolic event. With the current economic turbulence over the collapse of Silicon Valley Bank, there will no doubt be other collapses. Perhaps it is time to pay attention to what is happening in Senegal in terms of its society and economy. So that you can make the right decisions regarding your future.

Well it could be as the political situation is truly explosive as the result of the rivalry between current president Macky Sall and 2024 candidate Ousmane Soncko. Yesterday again it was a massive street brawl between policemen and Sonko delegation. Demonstrators burnt bus and supermarket.

 

[Puma]

WORLDWIDE EARTHQUAKE REPORT MARCH 17_2023

Strong earthquakes shook Indonesia and Philippines.

● M 5.0 - 160 km SSW of Srandakan, Indonesia
2023-03-17 12:05:25 (UTC)9.264°S 109.653°E. 46.7 km depth
USGS earthquake alert

● M 5.0 - 96 km ESE of Pondaguitan, Philippines
2023-03-17 16:11:39 (UTC)
5.928°N 126.938°E. 74.7 km depth
USGS earthquake alert


A seismic "swarm" occurred this March 17 in New Zealand, the strongest earthquake occurred at 15:46 UTC with a magnitude 5.3. Other earthquakes had a magnitude of 4.8 and 4.7. A magnitude 4.5 occurred in Christchurch at 00:44 on March 18

●M4.1 Mar-17 20:56:22 UTC, 25 km south-west of Whakatane, Depth:6.0546875km
●M4.8 Mar-17 20:00:29 UTC, 25 km south-west of Whakatane, Depth:7.4609375km,
●M4.1 Mar-17 20:56:22 UTC, 25 km south-west of Whakatane, Depth:6.0546875km,
●M4.2 Mar-17 21:03:27 UTC, NORTH ISLAND OF NEW ZEALAND, Depth:2.0km,
●M4.3 Mar-17 22:40:22 UTC, 30 km south-west of Whakatane, Depth:9.921875km,
●M4.3 Mar-17 22:44:22 UTC, 25 km south-west of Whakatane, Depth:9.211471558km,
●M4.5 Mar-18 00:44:23 UTC, 20 km south-east of Christchurch, Depth:13.90625km,
GeoNet (NZ) data

●M 5.3 - 6 km WNW of Kawerau, New Zealand
2023-03-17 15:46:01 (UTC)
38.071°S 176.641°E. 10.0 km depth
USGS earthquake alert

●M 4.8 - 7 km WNW of Kawerau, New Zealand
2023-03-17 15:31:07 (UTC)
38.080°S 176.617°E. 10.0 km depth
USGS earthquake alert

●M 4.7 - North Island of New Zealand
2023-03-17 19:58:06 (UTC)
38.107°S 176.623°E. 6.5 km depth
USGS earthquake alert


Moderate to strong seismic activity in Central and east Asia

● M 5.1 - Eastern Xizang
2023-03-17 10:39:39 (UTC)
30.783°N 96.055°E. 10.0 km depth
USGS earthquake alert

https://twitter.com/x/status/1636684061522681856

● M 4.9 - Hindu Kush region, Afghanistan
2023-03-18 00:00:54 (UTC)
36.516°N 69.842°E. 162.2 km depth
USGS earthquake alert

● M 4.7 - 138 km E of Murghob, Tajikistan
2023-03-17 18:19:10 (UTC)
38.239°N 75.551°E. 139.4 km depth
USGS earthquake alert

● M 4.5 - 82 km WNW of Murghob, Tajikistan
2023-03-17 01:59:45 (UTC)
38.547°N 73.154°E. 10.0 km depth
USGS earthquake alert


● M 4.4 - 98 km NE of Punta Cana, Dominican Republic
2023-03-17 03:26:18 (UTC)19.277°N 67.826°W96.0 km depth
USGS earthquake alert

https://twitter.com/x/status/1636574205667086337

https://twitter.com/x/status/1635639706972028933

● Summary

Seismic activity level has been at moderate levels in the last 24 hours. This is the last chart posted by Volcanodiscovery at 01:00 UTC on March 18 Global seismic activity chart
~4 quakes above magnitude 5
~48 quakes between magnitude 4 and 5
~155 quakes between magnitude 3 and 4
~486 quakes between magnitude 2 and 3
~640 quakes below magnitude 2 that people normally don't feel.
~1333 earthquakes in the past 24h (1118 earthquakes in the 24 hours prior to this report) Estimated combined seismic energy release: 93477 tons of TNT or 5.8 atomic bombs: 6052 tons of TNT or 0.4 atomic bombs.
Volcanodiscovery earthquake report 24h

 

[Puma]

Earthquake swarm rattles Bay of Plenty​

The North Island has been rocked by multiple earthquakes in quick succession overnight - but scientists say it's "typical activity for the area".

Just before 3:30am on Saturday morning, a 3.4-magnitude quake struck 25km southwest of Whakatāne.

At a depth of 3km, more than 500 people reported feeling the "weak" shaking on GeoNet. Most of the reports came from the east coast of the North Island.

Then, just over an hour later, a 4.6-magnitude earthquake was recorded in the same area. More than 2100 people reported feeling the 5km deep tremor, with GeoNet listing that quake as "light".

In the hour that followed, between 4:34am and 5:40am, GeoNet recorded at least another 10 quakes in the same area - the largest being 4.8-magnitude.

GeoNet said the quake "swarm", consisting of more than 40 earthquakes in total, was similar to ones recorded in 2018 and 2019.

"Feeling earthquakes close together in time can be unsettling, but this is typical activity for the area, and our team is keeping an eye on things," a statement said.

People who felt the quakes started taking to Twitter, particularly after the 4.6-magnitude tremor.

Site Not Available

Sorry, this site is only available in New Zealand

www.newshub.co.nz

https://twitter.com/x/status/1636765762517110792

 

[sToRmR1dR]

Very strong mag. 6.9 earthquake - Provincia del Azuay, 14 km southeast of Naranjal, Provincia del Guayas, Ecuador​

Date & time	Mar 18, 2023 17:12:54 UTC - 33 minutes ago
Local time at epicenter	Saturday, Mar 18, 2023 at 12:12 pm (GMT -5)
Status	Confirmed
Magnitude	6.9
Depth	75.0 km
Epicenter latitude / longitude	2.781°S / 79.55°W (Canton Cuenca, Provincia del Azuay, Ecuador)
Antipode	2.781°N / 100.45°E
Shaking intensity	Moderate shaking
Felt	79 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Licto (152 km / 94 mi)

 

[Puma]

WORLDWIDE EARTHQUAKE REPORT MARCH 18_2023

Strong seismic activity in South America. The M6.8 earthquake in Ecuador had a energy release equivalent to 14.9 atomic bombs according to Volcanodiscovery

A 6.8 magnitude earthquake in Ecuador on Saturday left at least 13 people dead and more than 120 injured, according to authorities in the South American country.

The earthquake was registered at 12:12 local time (17:12 GMT) and had its epicenter in the municipality of Balao, near the border with Peru, at a depth of 66 kilometers, according to the U.S. Geological Survey.

The cities of Machala and Cuenca were among the most affected, with homes destroyed and vehicles crushed in the streets.

"The earthquake was felt in almost all provinces of the country, but there were a greater number of reports coming from the provinces of Guayas, Pichincha, Azuay and El Oro, especially from the cities of Guayaquil, Quito and Cuenca," reported the Geophysical Institute of Ecuador.

Most of the victims were inhabitants of the provinces of El Oro and Azuzay.

About 20 educational units and more than 30 health centers were also affected.

Un terremoto de magnitud 6,8 deja al menos 14 muertos y 380 heridos en Ecuador - BBC News Mundo

El fuerte temblor tuvo su epicentro en el municipio de Balao, cerca de la frontera de Ecuador y Perú.

www.bbc.com

https://twitter.com/x/status/1637152605917913097

https://twitter.com/x/status/1637149406058127363

https://twitter.com/x/status/1637149617182605314

https://twitter.com/x/status/1637153475866816514

●M 6.8 - near the coast of Ecuador
2023-03-18 17:12:52 (UTC)
2.837°S 79.844°W. 65.8 km depth
USGS earthquake alert

●M 5.0 - 28 km S of San Martín, Argentina
2023-03-18 15:41:44 (UTC)
33.333°S 68.442°W. 48.4 km depth
USGS earthquake alert

●M 4.7 - 57 km N of Colchani, Bolivia
2023-03-18 06:50:07 (UTC)
19.782°S 66.923°W. 242.1 km depth
USGS earthquake alert

●M 4.6 - 73 km S of Calama, Chile
2023-03-18 20:30:07 (UTC)
23.118°S 68.908°W. 97.4 km depth
USGS earthquake alert



Seismic activity continues in New Zealand, a new earthquake in Christchurch and Kermadec Islands.

●M 5.0 - Kermadec Islands region
2023-03-18 03:44:10 (UTC)
30.415°S 176.629°W. 10.0 km depth
USGS earthquake alert

●M 4.3 - 33 km SE of Christchurch, New Zealand
2023-03-18 00:42:04 (UTC)
43.744°S 172.926°E. 11.5 km depth
USGS earthquake alert


Light Seismic activity in Baja California Mexico. Three moderate earthquakes were recorded south of Los Cabos San Lucas

●M 4.5 - 138 km SE of La Playa, Mexico
2023-03-18 04:31:18 (UTC)
22.224°N 108.671°W. 10.0 km depth
USGS earthquake alert

●M 4.2 - 139 km SE of La Playa, Mexico
2023-03-18 01:01:01 (UTC)
22.153°N 108.732°W. 10.0 km depth
USGS earthquake alert

●M 4.2 - 164 km ESE of La Playa, Mexico
2023-03-18 10:05:53 (UTC)
22.387°N 108.248°W. 10.0 km depth
USGS earthquake alert


Earthquake analyst forecasts strong earthquake in Central and South America after earthquake in Ecuador due to the migration of energy

Attention to the MAXIMUM Seismic Alert
The next 72 hours are crucial for countries like #Mexico #Chile #Panama #Guatemala we are waiting for the turmoil that is registered in America to have a significant response with #STRONG earthquakes.

https://twitter.com/x/status/1637172422783692800

● Summary

Seismic activity level has been at moderate levels in the last 24 hours. This is the last chart posted by Volcanodiscovery at 01:00 UTC on March 18 Global seismic activity chart
~1 quake above magnitude 6
~3 quakes between magnitude 5 and 6
~51 quakes between magnitude 4 and 5
~135 quakes between magnitude 3 and 4
~509 quakes between magnitude 2 and 3
~780 quakes below magnitude 2 that people normally don't feel.
~1479 earthquakes in the past 24h (1333 earthquakes in the 24 hours prior to this report) Estimated combined seismic energy release: 93477 tons of TNT or 5.8 atomic bombs: 2.5 x 105 tons of TNT or 15.4 atomic bombs
Volcanodiscovery earthquake report 24h

 

[Aeneas]

Last week saw 2 M6, both M6.0, one in PNG and the other in the Philippines.
In the usual area, there were 3 out of 102 earthquakes worldwide equal to or greater than 4.5 and 2358 out of 2673 quakes of all sizes. (USGS figures only of course)
Percentage: 88.2%

Last week saw 1 M7 (M7.0 in the Kermadic Island region) and 2 M6 (highest being a M6.8 in Ecuador).
In the usual area, there were 4 out of 104 earthquakes worldwide equal to or greater than 4.5 and 2000 out of 2402 quakes of all sizes.
Percentage: 83.3%

 

[Puma]

So far only minor aftershocks have been recorded in Ecuador after the M6.8 earthquake. The largest aftershocks have registered a magnitude of 4.0 and 4.8.

Moderate mag. 4.8 earthquake - South Pacific Ocean, 46 km north of Machala, Provincia de El Oro, Ecuador, on Saturday, Mar 18, 2023 at 12:22 pm (GMT -5)
Volcanodiscovery

Moderate mag. 4.0 earthquake - South Pacific Ocean, 47 km north of Machala, Provincia de El Oro, Ecuador, on Saturday, Mar 18, 2023 at 12:55 pm (GMT -5)
Volcanodiscovery

While most aftershocks are smaller than the mainshock, they can still be damaging or deadly. A small fraction of earthquakes are followed by a larger earthquake, in which case the first earthquake is referred to as a foreshock. Aftershocks USGS

It is also true that one of the aftershocks may reach the same magnitude or close to the mainshock.

Earthquake analyst forecasts strong earthquake in Central and South America after earthquake in Ecuador due to the migration of energy

U.S. seismic stations recorded the seismic wave

https://twitter.com/x/status/1637194976865001472

As can be seen, the seismic wave reached Alaska. A M5.4 earthquake was recorded this day. Seismic activity in Alaska had so far been concentrated in the Aleutian Islands.

M 5.4 - 19 km SSW of Anchor Point, Alaska
2023-03-19 15:06:27 (UTC)
59.610°N 151.907°W65.4 km depth
USGS earthquake alert

https://twitter.com/x/status/1637471703117754369

M 4.5 - 76 km W of Sardinal, Costa Rica
2023-03-19 09:51:57 (UTC)
10.602°N 86.344°W. 10.0 km depth
USGS earthquake alert

https://twitter.com/x/status/1637411253441183745

Light Seismic activity in Baja California Mexico. Three moderate earthquakes were recorded south of Los Cabos San Lucas

Fourth earthquake in Los Cabos.

M 4.2 - 148 km SE of La Playa, Mexico
2023-03-19 04:09:26 (UTC)
21.983°N 108.815°W. 10.0 km depth
USGS earthquake alert

https://twitter.com/x/status/1637364837108858882

Near Los Cabos there are two submarine volcanoes.

One hundred kilometers off the east coast of Los Cabos at a depth of 2,375 meters, apart from the volcano known as "Dorsal de Alarcón", a new and completely different hydrothermal vent was discovered in the southern Gulf of California.

The discovery was unveiled in 2013 at the annual meeting of the American Geophysical Union (AGU).

It was confirmed that these are two active volcanic domes, located in the Alarcón elevation in front of Los Cabos. This by the evidence of rhyolite rocks, which are made up of granite and lava.

Researchers do not rule out that a violent explosion of the recently baptized Alarcón volcano could generate an event of a greater nature at the site, nor do they rule out the possibility of a tsunami that could affect the coast of Los Cabos.

Researchers say that due to the explosive deposits at the site, there is great concern because the mountain range is so close to the mainland that there is potential for a tsunami.

 

[Puma]

WORLDWIDE EARTHQUAKE REPORT MARCH 19_2023

In recent days seismic activity in Russia had been concentrated in the southern part of the Kamchatka Peninsula and the Kuril Islands. On March 19 a earthquake M5.0 occurred in mainland Russia

M 5.0 - 158 km NE of Omsukchan, Russia
2023-03-19 23:05:05 (UTC)
63.402°N 158.229°E. 10.0 km depth
USGS earthquake alert


This earthquake M5.0 NE of Omsukchan was very atypical. The following map shows the places where earthquakes have been recorded in the last 70 years.


The strongest earthquake in Russia happened on November 11, 1952 in the Kamchatka Peninsula region with a magnitude of 9.0 on the Richter scale. The earthquake also triggered a tsunami, leading to further victims and destruction.

As for the aftershocks of the earthquake in Ecuador, 23 have been officially registered, the largest of magnitude 4.8 occurred yesterday (most of the aftershocks have been imperceptible).

https://twitter.com/x/status/1637179109494145024

https://twitter.com/x/status/1637181516580020224

● Summary

Seismic activity level has been at moderate levels in the last 24 hours. This is the last chart posted by Volcanodiscovery at 00:00 UTC on March 19 Global seismic activity chart
~2 quakes above magnitude 5
~33 quakes between magnitude 4 and 5
~107 quakes between magnitude 3 and 4
~363 quakes between magnitude 2 and 3
~723 quakes below magnitude 2 that people normally don't feel.
~1228 earthquakes in the past 24h (1479 earthquakes in the 24 hours prior to this report) Estimated combined seismic energy release: 5752 tons of TNT or 0.4 atomic bombs
Volcanodiscovery earthquake report 24h

 

[Puma]

WORLDWIDE EARTHQUAKE REPORT MARCH 20_2023

●M 5.1 - South Sandwich Islands region
2023-03-20 11:57:15 (UTC) 56.083°S 27.854°W. 133.4 km depth
USGS earthquake alert

https://twitter.com/x/status/1637808142015774720

●M 4.5 - 5 km SSE of Menídi, Greece
2023-03-21 00:20:14 (UTC)
38.997°N 21.131°E. 10.0 km depth
USGS earthquake alert

https://twitter.com/x/status/1637981666785505280

●M 4.1 - 8 km N of Kawerau, New Zealand
2023-03-20 15:48:27 (UTC)
38.021°S 176.699°E. 8.2 km depth
USGS earthquake alert

https://twitter.com/x/status/1637851678522191872

● Earthquake Forecast Throughout the week there will be primarily lunar peaks, but the New Moon on the 21st will be followed by a planetary conjunction, which could lead to some seismic increase, most likely around the 22nd, but it is not expected to be much.
SSGEOS

MAGNITUDE PROBABILITY​

updated 20 March 2023, 09:22 UTC

M 6.0-6.4	M 6.5-6.9	M 7.0-8.4	M 8.5+
50%	40%	40%	20%

● Summary

Seismic activity level has been at low levels in the last 24 hours. This is the last chart posted by Volcanodiscovery at 01:00 UTC on March 21 Global seismic activity chart
~1 quake above magnitude 5
~31 quakes between magnitude 4 and 5
~99 quakes between magnitude 3 and 4
~342 quakes between magnitude 2 and 3
~781 quakes below magnitude 2 that people normally don't feel.
~1254 earthquakes in the past 24h (1228 earthquakes in the 24 hours prior to this report) Estimated combined seismic energy release: 3953 tons of TNT or 0.2 atomic bombs.
Volcanodiscovery earthquake report 24h

 

[Puma]

Strong earthquake in Costa Rica

M 5.5 - Costa Rica
2023-03-21 01:44:13 (UTC)
9.360°N 84.094°W. 35.0 km depth
USGS earthquake alert

https://twitter.com/x/status/1637998926396522499

Data for the same earthquake reported by different agencies

Mag.	Depth	Location	Source
5.5	35 km	10 Km SE of Quepos, Costa Rica	USGS
5.5	35 km	Costa Rica	Raspberry Shake
5.5	17 km	Costa Rica: 21 Km Al Sur De Quepos.	RSN
5.6	34 km	Costa Rica	INGV
5.4	6 km	16 Km Al Sur De Puerto Quepos, Costa Rica	INETER
4.9	30 km	COSTA RICA	EMSC
5.3	32 km	San José, Costa Rica	GFZ
5.5	10 km	Costa Rica	IRIS

This earthquake could be related to the migration of energy from the 6.8 earthquake in Ecuador.

Earthquake analyst forecasts strong earthquake in Central and South America after earthquake in Ecuador due to the migration of energy