Earthquakes around the world
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Moderate mag. 5.5 earthquake - 67 km ESE of King Cove, Alaska
Date & time: Saturday, 8 August 2020 14:42 UTC
Local time at epicenter: 2020-08-08 14:42:54 UTC
Magnitude: 5.5
Depth: 42.1 km
Epicenter latitude / longitude: 54.8389°N / 161.3373°W
(United States)
Nearest volcano: Pavlof (61 km)
Primary data source: USGS
Date & time: Saturday, 8 August 2020 14:42 UTC
Local time at epicenter: 2020-08-08 14:42:54 UTC
Magnitude: 5.5
Depth: 42.1 km
Epicenter latitude / longitude: 54.8389°N / 161.3373°W
Nearest volcano: Pavlof (61 km)
Primary data source: USGS
Ditrianum did predict both on the 30th of July and then again on the 2nd of August that there might be greater earthquakes in the days following in the high M6 and up to M7. This didn't happen, though there were 'earthquakes' of a different kind (Beirut explosion).
The week saw 2 M6, with the highest being a 6.4 in Vanuatu.
For the usual map area, there were 6 earthquakes out of 101 worldwide equal or greater to 4.5 and 2102 out of 2413 earthquakes of all sizes.
Percentage: 87.1%
Well, i'm not sure whether i'm misunderstanding things here, but Ditrianum's prediction posted on Twitter on July 30th said:
and what followed ~2 days later were 2 quakes on August 1st of M6 or above, as recorded on USGS:
So that's 2 x M6+ quakes 2-3 days after the alignment.
As for the 2nd of August prediction:
As you mentioned, 2 days after the 3rd, on the 5th of August, there was an M6.4 in Vanuatu, and it wasn't until 5 days later there was another M6+, and nothing in the mid-M7 range. So i'd say this wasn't a hit.
Well, i'm still just keeping my eye on Ditrianum, and he admits himself that he's not always going to be right, but i thought to note the above just for the record. And maybe i'm mistaken.
M 5.9 - southwest of Africa
2020-08-09
sputniknews.com
10.08.2020
2020-08-09
Magnitude 5.7 Earthquake Hits Honduras, USGS Says
According to seismologists, the epicentre of the quake was registered 46 km to the north of the Savannah Bight.
sputniknews.com
Scientists discover new kind of powerful, BOOMERANG earthquake which generates underground ‘sonic booms’
For the first time in history, scientists have confirmed the existence of mysterious and extremely powerful ‘boomerang’ earthquakes, throwing open the possibility of even more devastating types of seismic events.
For the first time in history, scientists have confirmed the existence of mysterious and extremely powerful ‘boomerang’ earthquakes, throwing open the possibility of even more devastating types of seismic events.
Researchers led by Stephen Hicks, an earthquake seismologist at the Imperial College London, studied data from 39 seismometers placed near the Mid-Atlantic Ridge to monitor seismic activity and finally found evidence of the oft-theorized but never witnessed boomerang quake, aka “back-propagating rupture.”
via GIPHY
A 7.1-magnitude earthquake struck along a crack in the seafloor 650 miles off the coast of Liberia in August 2016, powerful but somewhat unremarkable, until the seismic data showed a major anomaly had just occurred.
“Even though the fault structure seems simple, the way the earthquake grew was not, and this was completely opposite to how we expected the earthquake to look before we started to analyze the data,” Hicks said.
The deep sea temblor started deep underground, rushing eastward towards the Mid-Atlantic Ridge before turning back on itself and rising up through the upper section of the fault at supershear speeds at roughly 11,000 miles per hour, fast enough to make it from New York to London in under 20 minutes.
The deep sea quake traveled so fast, it created the geological equivalent of a sonic boom in the process.
“To the best of my knowledge, this is the first time it has been reported,” said geophysicist Yoshihiro Kaneko of GNS Science in New Zealand.
Mystery remains as to how frequent such boomerang quakes are and how many travel fast enough to create these underground “sonic booms.” Some in the scientific community have even begun to speculate that the magnitude-9.0 Tohoku earthquake that struck Japan in 2011 with devastating consequences may also have featured some of this boomerang rupture effect.
“This might be actually more common than we think,” Kaneko added.
Properly understanding the surprisingly complex nature of these earthquakes will help us produce better models and more accurately predict where and how temblors might strike in the future, improving early warning systems and perhaps construction methods in high-risk areas.
edgitarra
Jedi Council Member
A nice and minimalist website that tracks earthquakes - Map of Earthquakes Today
Swarm of subsea quakes near San Andreas fault reignites doomsday prophecies, fears of impending ‘Big One’
A swarm of dozens of minor earthquakes hit just south of the San Andreas Fault in a matter of mere hours, prompting concerns that California might be hit by a megaquake in the near future.
Swarm of subsea quakes near San Andreas fault reignites doomsday prophecies, fears of impending ‘Big One’
11 Aug, 2020 12:59
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A crack runs across the road following an earthquake in California. © REUTERS/Jim Christie
- 6
A swarm of dozens of minor earthquakes hit just south of the San Andreas Fault in a matter of mere hours, prompting concerns that California might be hit by a megaquake in the near future.
The largest temblor in Monday’s swarm was a magnitude 4.6, while there were multiple magnitude 3 quakes, all of which struck in an area known as the Brawley Seismic Zone, wedged between the San Andreas Fault and the Imperial Fault which goes all the way south to Mexico.
Similar swarms have been recorded in the past and typically last approximately one week but with each new swarm, tensions mount that the Big One could hit at any moment.
“We have faults that are building up strain all the time,” said Zachary Ross, a seismologist at Caltech who studies these swarms.
At present, there is a one in 10,000 chance of a magnitude 7 and above quake hitting the southern San Andreas area.
There is roughly a one in five chance of one hitting in the next three decades and a one in a hundred chance of a magnitude 7 and above quake occurring in the next week, a similar level of risk in the aftermath of another such swarm in 2016.
A view of the San Andreas Fault north of Wallace Creek, California. © REUTERS/Scott Haefner/U.S. Geological Survey
“It’s definitely something to watch,” said USGS research geophysicist Morgan Page, cuationing that there was no immediate need for panic, just vigilance.
Monday’s swarm is only the fourth time in the 88 years since official records began that such a swarm has struck this area. Meanwhile, the San Andreas fault has not ruptured in the vicinity since 1690 and it is estimated to rupture once every 250 years or so.
While seismologists are concerned, they would be far more concerned were the swarm to shift northwards toward the fault. That didn’t stop people from posting doomsdayprophecies in response to the USGS, though others were a little more playful.
The last true mega quake to occur in Southern California was a magnitude 7.8 in 1857. However, just last year, on July 5, a magnitude 7.1 quake struck the Golden State, causing billions of dollars in damage.
ALS
BREAKING:
sputniknews.com
5.9-Magnitude Earthquake Strikes Off Tanzania, EMSC Says
In 2017, a magnitude 5.7 earthquake at the border with Uganda and Rwanda near Lake Victoria in northern Tanzania killed at least 13 people and injured 203.
sputniknews.com
Ditrianum is predicting the potential for an M7-M8 on the 15th or 16th of August. Now, i don't plan on logging all of his predictions, but since this one is a biggie and within a defined time period, i figure it's worthwhile to note here and we'll see what happens.
Also to note, i had a quick look to see what software he's using and it seems it isn't available for download to the public, and i'm assuming he designed it himself.
Here's the tweet (with text copied for posterity below) and the 4 minute YouTube video detailing the forecast:
Also to note, i had a quick look to see what software he's using and it seems it isn't available for download to the public, and i'm assuming he designed it himself.
Here's the tweet (with text copied for posterity below) and the 4 minute YouTube video detailing the forecast:
BREAKING:
5.9-Magnitude Earthquake Strikes Off Tanzania, EMSC Says
In 2017, a magnitude 5.7 earthquake at the border with Uganda and Rwanda near Lake Victoria in northern Tanzania killed at least 13 people and injured 203.
According to Earthquake Report, "Earthquakes along the coast of Tanzania are relatively rare and today's event has been the strongest in decades."
Interesting the planetary alignments in all this, not to mention solar cycle 25 outbreak possibilities facing earth:
Massive sunspot turning towards Earth could be bad news as we enter new solar cycle 25 -- Sott.net
Near-Earth objects and close calls
Video circulating on Twitter now, people already stealing it and posting as their own with different info :-( This is the original video:
cassiopaea.org
[Solar activity in July 2020] Of the three active areas that appeared in July, NOAA AR 12767 showed stable black spots for a dark black area and the surrounding dark dim half-dark area for more than 10 days. It is recently that such sunspots have become visible in the activity areas belonging to the 25th cycle, and this is the second case.
[Solar activity in July 2020] Two points of NOAA ARs 12765 and 12767 also appeared in the diagram (butterfly diagram) showing the latitude distribution of the black dots (blue circle in the lower part of the diagram). The appearance of high latitude sunspots in the butterfly pattern suggests that the beginning of the 25th cycle is near, and that the activity is proceeding in the Southern Hemisphere ahead of the North and South.
Earthquake Forecast for the Salton Sea Swarm of August 2020
Salton Sea Earthquake Activity Returns to Normal Levels | U.S. Geological Survey
Reduced activity for the swarm of earthquakes beneath the Salton Sea that began on August 10, 2020.Last update: 08/14/2020 12pm Pacific
Over the past 3 days, we have been carefully monitoring the Salton Sea for ongoing earthquake activity. The earthquake swarm that began on August 10th continues to quiet down, producing only 1 earthquake of magnitude 2 and larger in the last 24 hours (as of noon August 13th). This is compared to a peak of 54 earthquakes on August 10th, the day of the M4.6 mainshock, which remains the largest earthquake so far. Our updated probabilities for the following three scenarios reflect this reduction in activity; however, the risk of a large earthquake remains elevated due to the swarm when compared to background levels.
The southernmost section of the San Andreas Fault is capable of rupturing in large magnitude earthquakes (magnitude 7+), the last of which occurred more than 300 years ago. In a typical week, there is approximately a 1 in 10,000 chance of a magnitude 7+ earthquake on the southernmost San Andreas Fault. For the next week, we estimate an elevated chance of such an earthquake to be less than 1 in 1,000.
Historically, this area has seen swarms before – most recently in 2001, 2009, and 2016. During the last swarm in 2016, there were three bursts of activity separated by relatively quiet periods before the swarm ended. Past swarms in this area have remained active for 1 to 20 days, with a typical duration of about a week, so this swarm may have future bursts of activity that will in turn impact the probabilities discussed below.
The following three scenarios describe possibilities of what could happen from 13 August to 21 August.
Only one of these scenarios will occur within the next week. These scenarios include the possibility of earthquakes on and off the San Andreas Fault.
- Scenario One (Most likely, about 99% chance): Earthquakes continue but none will be larger than magnitude 5.4 within the next 7 days.
The most likely scenario is that the rate of earthquakes in the swarm will decrease over the next 7 days. Some moderately sized earthquakes may occur (magnitude in the range M4.5-M5.4), which could cause localized damage, particularly in weak structures. Smaller magnitude earthquakes (M3.0+) may be felt by people close to the epicenters.
- Scenario Two (Less likely, about 1% chance): A larger earthquake (magnitude 5.5 to 6.9) could occur within the next 7 days.
A less likely scenario is a somewhat larger earthquake (up to a M6.9). Earthquakes of this size could cause damage around the Salton Sea area and would be followed by aftershocks that would increase the number of smaller earthquakes per day.
- Scenario Three (Least Likely, less than 1% chance): A much larger earthquake (magnitude 7 or higher) could occur within the next 7 days.
A much less likely scenario, compared with the previous two scenarios, is that the ongoing swarm could trigger an earthquake significantly larger than the M4.6 that occurred on the 10 August (i.e., M7.0 and above). While this is a very small probability, if such an earthquake were to occur, it would have serious impacts on communities nearby and would be followed by aftershocks that would increase the number of smaller earthquakes per day.
