Earthquakes around the world

c.a. said:

A powerful 6.2-magnitude earthquake rocked central Italy some 76 kilometers southeast of the city of Perugia at 1:36 a.m GMT. Social media has been flooded with reports of strong tremors felt in the country’s capital, Rome.

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M 6.2 EARTHQUAKE - CENTRAL ITALY

https://youtu.be/CPQHEXwzhT4
http://thewatchers.adorraeli.com/2016/08/24/extremely-dangerous-m6-2-earthquake-hits-central-italy-massive-damage-numerous-aftershocks/

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At least 120 people have been killed and 368 injured in an earthquake that hit a mountainous area of central Italy, Prime Minister Matteo Renzi has said.

The magnitude-6.2 quake struck at 03:36 (01:36 GMT), 100km (65 miles) north-east of Rome, not far from Perugia.

Many of the dead were in the historic town of Amatrice, where the mayor said three-quarters of the town was destroyed, and in nearby Accumoli.

Many people are still believed buried under the rubble, with hundreds hurt.

Mr Renzi paid tribute to the volunteers and civil defence officials who had rushed to the scene in the middle of the night and used their bare hands to dig for survivors.

He promised "no family, no city, no hamlet will be left behind".

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Mr Renzi paid tribute to the volunteers and civil defence officials who had rushed to the scene in the middle of the night and used their bare hands to dig for survivors.

He promised "no family, no city, no hamlet will be left behind".

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Pierre said:

Mr Renzi paid tribute to the volunteers and civil defence officials who had rushed to the scene in the middle of the night and used their bare hands to dig for survivors.

He promised "no family, no city, no hamlet will be left behind".

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In 2009 a M6.3 quake hit L'Aquila (a few kilometres away from the latest quake) and killed 308 people.

Despite the politicians' claim, the Italian people has been "left behind". Since 2009 no major upgrade in building standard has been implemented. Those building standards are poor if not non-existent.

In Japan, a M7.3 (10 times more powerful than a 6.3) would make virtually no victim.

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itellsya said:

Maybe related to the recent shaking in Italy and around the world - am i reading it right thinking this began rising before the 24th which continued to through the morning?:

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The K-index quantifies disturbances in the horizontal component of earth's magnetic field with an integer in the range 0–9 with 1 being calm and 5 or more indicating a geomagnetic storm. It is derived from the maximum fluctuations of horizontal components observed on a magnetometer during a three-hour interval.

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The epicenter of the quake was just 5 kilometers from the town

ROME, August 26. /TASS/. A new 4.8-magnitude earthquake has struck central Italy’s Amatrice, one of the worst areas affected by the August 24 quake, the European Mediterranean Seismological Center said on Friday.

The epicenter of the quake was just 5 kilometers from the town. It occurred at the depth of 10 kilometers.

A 6.0-magnitude earthquake jolted Italy on Wednesday at 3:36 a.m. local time, with a 5.4-magnitude aftershock that followed the initial quake. The tremors affected a wide area in the Apennines, shocks were felt as far away as Perugia, Rieti and Norcia to name a few. The earthquake epicenter was registered in the Rieti province at a depth of 4 kilometers.

According to the latest data, a total of 250 people were killed and 365 others were injured by the August 24 quake. The search and rescue effort is underway.

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An earthquake has occurred off the coast of the Philippines.

BALI (Sputnik) – A 5.1-magnitude earthquake has occurred off the coast of the Philippines, the US Geological Survey (USGS) reports.

The quake struck at about 15:53 GMT on Friday, with its epicenter lying at a depth of about 97.6 kilometers (60 miles), USGS said.

The earthquake occurred about 14 kilometers (8.6 miles) from Santa Monica, in the Surigao del Norte province.

There have been no reports of damages or casualties.

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“We could have a larger earthquake, a much larger earthquake, than what happened in Italy, on [California’s] San Andreas fault, or any of the other hundreds of faults in California, really at any time. It’s just the reality of living on a plate boundary of the Earth’s crust,” Benthien explained.

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A rare deep-Earth tremor has been detected for the first time on the ocean floor in Japan.

Using seismic equipment, researchers have managed to trace its location to a distant and powerful storm between Greenland and Iceland.

The findings could help experts learn more about the Earth's inner structure and improve the detection of earthquakes and oceanic storms.

The storm that caused the deep-Earth tremor was a 'weather bomb' that struck over the North Atlantic.

This is a small but potent storm in which pressure quickly builds, creating a more vigorous storm.

As the storm hit, groups of waves pounded the ocean floor between Greenland and Iceland.

These subtle waves run through the Earth and can be detected in distant places.

The researchers used seismic equipment at 200 sites on both land and on the seafloor in Japan to track the tremors.

Their readings showed that they were secondary (S) wave microseisms – or very faint tremors.

Unlike primary (P) waves, which are usually detected during major hurricanes, S waves are slow, and only move through rock.

This marks the first time scientists have observed an S wave.

In an accompanying article, Peter Gerstoft and Peter Bromirski, from the University of California in San Diego said that the discovery 'gives seismologists a new tool with which to study Earth's deeper structure.'

While the deep-sea tremor were discovered, these should not be mistaken as an earthquake.

In an article for The Conversation, David Rotheray, Professor of Planetary Geosciences at The Open University, said: 'There's a danger that this research could be misreported as an Atlantic storm causing an earthquake in Japan.

TYPES OF SEISMIC WAVES

The two main types of seismic waves are surface and body waves.

Body waves can travel through the Earth's inner layers, but surface waves can only move along the surface of the planet like ripples on water.

There are two main types of body wave - primary (P) and secondary (S).

P waves are longitudinal waves which means the vibrations travel in the same direction.

These can travel through both rock and liquids, like water.

S waves are transverse waves, which means the vibrations are at right angles to the direction of travel.

Unlike P waves, S waves can only move through rock.

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'The reality is that the Japanese scientists detected an intensification of the usual background hum.'

However, while the tremors in Japan were not an earthquake, the findings, which are published in Science, could improve the understanding of Earth's inner core, and could be used to improve the detection of earthquakes in the future.

Professor Rotheray added: 'Knowing we can isolate the signals from storms could be particularly useful because the region where the weather bomb occurred almost never experiences earthquakes.

'So storms elsewhere may in time prove equally useful.'

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While the deep-sea tremor were discovered, these should not be mistaken as an earthquake. ...There's a danger that this research could be misreported as an Atlantic storm causing an earthquake in Japan. ... while the tremors in Japan were not an earthquake, the findings ... could be used to improve the detection of earthquakes in the future.

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It was centered near Bondurant, WY and happened at 20:47:47.20 UTC, or 2:47 PM. Map of area. It's unknown if any serious mountain rockfall resulted from the quake. It shook hard for a minute or two depending upon your location.

It lasted about 10 minutes. It was closer to the Wind River Range than the Tetons. Over 450 people reported feeling the quake to the USGS. Some of the reports came from people who were 100 miles from the epicenter - Idaho Falls & Yellowstone.
http://earthquake.usgs.gov/earthquakes/eventpage/us20006umx#executive

Testimonies: 11
http://www.emsc-csem.org/Earthquake/earthquake.php?id=526827#testimonies
Witness location : Jackson (United States) (46 km NW from epicenter)

It felt like waves and made me feel weird is there a reason earthquakes effect the way you feel

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A new 4.4-magnitude aftershock with a depth of about 9 km has rattled the region not far from the town of Arquata del Tronto in central Italy, the European Mediterranean Seismological Centre reported. The area suffered a deadly earthquake four days ago.

The aftershock’s center is located nearly 7 km from Arquata del Tronto. The tremor was felt in Rome, situated more than 150 kilometers south of the town, according to local broadcaster RaiNews24.

A powerful earthquake hit central Italy on Wednesday night, leaving at least 290 people dead with the death toll still rising.

A number of small towns and villages were reduced to rubble. Rescue teams dug deep underneath the rubble in the search for possible survivors. Strong tremors were felt in the Italian capital on Wednesday night as well.

As many as 2,500 people have lost their homes to the earthquake, according to the data released by the Italian civil defense authorities.

More than 1,800 aftershocks have rocked the region since Wednesday’s quake with Saturday night being the first one without any major tremors.

Rescue operations are still in progress.

https://youtu.be/rG7TpAwpgDo

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