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Fri, 07 May 2021
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Earthquakes


Seismograph

Shallow 6.0-magnitude earthquake hits Chile

Earthquake graph
© Sputnik / Gennady Ratushenko
The people of Chile and neighbouring countries are used to earthquakes, as the region is part the Ring of Fire - an area around much of the rim of the Pacific Ocean where many volcanic eruptions and earthquakes occur due to the collision of lithospheric plates.

According to the European-Mediterranean Seismological Centre (EMSC), the earthquake hit off of Coquimbo on Sunday morning. The quake's epicentre was located at a depth of around 10 km (6.2 miles).

So far, there have been no reports about any damages or casualties, caused by the tremor.

Seismograph

Magnitude 6.8 earthquake jolts northern Japan

quake
A 6.8 magnitude earthquake that also measured a strong 5 on the shindo (intensity) scale struck off Japan's northeastern coast on Saturday but no tsunami warning was issued, Japanese and U.S. authorities said, with no immediate reports of damage.

The United States Geological Survey (USGS) said the midmorning quake hit at a depth of 47 kilometers (29 miles) in the Pacific, off Ishinomaki, Miyagi prefecture, near the epicenter of the huge March 2011 quake that triggered a towering tsunami, killing more than 18,000 people.

The USGS and Meteorological Agency said there was no tsunami risk following the jolt, which produced strong shaking along parts of the eastern coast and was also felt in Tokyo.

Seismograph

'Massive jolts' felt across northeast India as shallow M6.0 earthquake strikes Assam

Assam, India quake map
© USGS
A 6.0 magnitude earthquake has rocked the Indian state of Assam, with many witnesses reporting powerful tremors felt across the country's northeast amid a series of aftershocks.

The quake struck near the towns Dhekiajuli and Tezpur at a depth of around 18 miles (29km) on Wednesday morning, according to the US Geological Survey (USGS), while the European Mediterranean Seismological Centre (EMSC) recorded a depth of just shy of 25 miles (40km). Aftershocks have been reported, with USGS noting one at a magnitude of 4.9 and the European agency listing a total of four, ranging between 3.6 and 4.9 on the Richter scale.

Residents, including a local government minister, took to Twitter to report the "massive" quake, with one deeming it the "scariest earthquake [I have ever] witnessed." Another local said his "whole house vibrated" during the tremors, which he felt for more than 30 seconds.


Seismograph

Very strong mag. 6.1 earthquake - Bismarck Sea, Papua New Guinea on Tuesday, 27 April

quake
Date & time: 27 Apr 2021 08:05:32 UTC -
Local time at epicenter: 27 Apr 6:05 pm (GMT +10)
Magnitude: 6.1
Depth: 10.0 km
Epicenter latitude / longitude: 3.49°S / 145.53°E (Bismarck Sea, Papua New Guinea)
Nearest volcano: Bam (81 km / 50 mi)

Seismograph

6.4-magnitude earthquake hits 200 km SW of Haveluloto, Tonga

quake
An earthquake with a magnitude of 6.4 jolted 200 km southwest of Haveluloto, Tonga at 22:28:00 GMT on Sunday, the U.S. Geological Survey said.

The epicenter, with a depth of 234.01 km, was initially determined to be at 21.6857 degrees south latitude and 177.064 degrees west longitude.

Seismograph

Strong mag. 6.5 earthquake - Fiji Islands Region, Tonga, on Saturday, 24 April

quake
Date & time: 24 Apr 2021 00:23:37 UTC -

Local time at epicenter: 24 Apr 1:23 pm (GMT +13)

Magnitude: 6.5

Depth: 283.0 km

Epicenter latitude / longitude: 18.84°S / 176.34°W (South Pacific Ocean, Tonga)

Nearest volcano: Metis Shoal (125 km / 78 mi)

Seismograph

Magnitude-6.0 quake strikes near Indonesian coast - USGS

Nias quake map
© US Geological Survey
A magnitude-6.0 earthquake struck not far from Nias Island off the western coast of Sumatra, Indonesia, according to the US Geological Survey, which put the tremor at a depth of 6.2 miles (10km).

The quake hit 80 miles (129km) off the west coast of Nias Island on Tuesday morning, the USGS reported. While Indonesia's Meteorology, Climatology, and Geophysical Agency (BMKG) noted there is currently no tsunami risk, they warned residents to brace for possible aftershocks and estimated the initial quake to have been 6.4 in magnitude.

The jolt comes just days after another 6.0 magnitude earthquake rocked Java, Indonesia's main island, killing at least eight people and damaging more than 1,300 buildings. That quake struck much deeper, however, at 51 miles (82km).

Seismograph

Taiwan struck by M6.2 and M5.8 earthquakes three minutes apart

Taiwan earthquakes

Taiwan map showing M6.2 earthquake
East Taiwan was struck by magnitude 6.2 and 5.8 earthquakes three minutes apart on Sunday evening (April 18), according to the Central Weather Bureau (CWB).

The first earthquake, a magnitude 5.8, struck at 10:11 p.m. and was 19.2 kilometers southwest of Hualien County Hall, at a shallow focal depth of 15 kilometers. Taiwan uses an intensity scale of one to seven that gauges the degree to which a quake is felt at a specific location.

The quake's intensity registered as a five in Hualien County, a four in Nantou County, Yilan County, and Changhua County, and a three in Taichung County, Yunlin County, Chiayi County, Miaoli County, and New Taipei City, An intensity level of two was recorded in Taoyuan County, Hsinchu County, Kaohsiung City, Hsinchu City, Chiayi City, Taipei City, Tainan City, and Pingtung County, while a lesser intensity of one was felt in Keelung City and Penghu County.


Attention

Hawaii: 34 earthquakes rattle world's largest active volcano, raising fears of eruption

A lava flow map of Mauna Loa on Hawaii’s Big Island
© USGS
A lava flow map of Mauna Loa on Hawaii’s Big Island prepared by the US Geological Survey
Mauna Loa, the world's largest active volcano, covering half of the Big Island of Hawaii, was ratted by 34 small earthquakes on Sunday.

Though only registering small magnitudes, scientists have warned citizens that the mounting seismic activity could signal that an eruption may be possible in the near future.

There have been 155 earthquakes greater than 1.5 on the Richter scale in the past seven days, and 740 in the past month, including a 4.3 on 3 April.

Sunday's largest tremor was a 3.2 magnitude quake that struck Pahala, south of the summit of Mauna Loa at 8.08pm local time. A 3.0 tremor also struck in the afternoon.

In March, the US Geological Survey said that as the volcano continues to awaken from its slumber, it would be a good time for people to revisit their personal emergency plans in the event of an eruption.

Seismograph

Significant 6.0 earthquake hits off East Java, Indonesia - 8 dead, dozens hurt (UPDATE)

Pieces of roof tiles and other debris litter the ground at a school following an earthquake in Malang, East Java, Indonesia, April 10, 2021.
© AP
Pieces of roof tiles and other debris litter the ground at a school following an earthquake in Malang, East Java, Indonesia, April 10, 2021.
An intermediate magnitude 6.0 earthquake was reported early afternoon near Blitar, East Java, Indonesia.

According to the German Research Centre for Geosciences (GFZ), the quake hit on Saturday 10 April 2021 at 2:00 pm local time at an intermediate depth of 87 km.

The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.

Our monitoring service identified a second report from the European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 5.9.

Comment: Update: April 11, report by AP:
8 Dead, Dozens Hurt as Indonesia Quake Shakes East Java

A strong earthquake on Indonesia's main island of Java killed eight people, including a woman whose motorcycle was hit by falling rocks, and damaged more than 1,300 buildings, officials said Sunday. It did not trigger a tsunami.

The U.S. Geological Survey said the magnitude 6.0 quake struck off the island's southern coast at 2 p.m. Saturday. It was centered 45 kilometers south of Sumberpucung town of Malang District in East Java province, at a depth of 82 kilometers.

Rahmat Triyono, the head of Indonesia's earthquake and tsunami center, said the undersea tremblor did not have the potential to cause a tsunami. Still, he urged people to stay away from slopes of soil or rocks that have the potential for landslides.

This was the second deadly disaster to hit Indonesia this week, after Tropical Cyclone Seroja caused a severe downpour Sunday that killed at least 174 people and left 48 still missing in East Nusa Tenggara province. Some victims were buried in either mudslides or solidified lava from a volcanic eruption in November, while others were swept away by flash floods. Thousands of homes with damaged.

Saturday's quake caused falling rocks to kill a woman on a motorcycle and badly injured her husband in East Java's Lumajang district, said Raditya Jati, spokesperson for the National Disaster Mitigation Agency.

He said about 1,189 homes and 150 public facilities, including schools, hospitals and government offices, were damaged. Rescuers retrieved four bodies from the rubble in Lumajang's Kali Uling village. Three people were also confirmed killed by the quake in Malang district.

Television reports showed people running in panic from malls and buildings in several cities in East Java province.


Indonesia, a vast archipelago of 270 million people, is frequently struck by earthquakes, volcanic eruptions and tsunamis because of its location on the "Ring of Fire," an arc of volcanoes and fault lines in the Pacific Basin.

In January, a magnitude 6.2 earthquake killed at least 105 people and injured nearly 6,500, while more than 92,000 were displaced, after striking Mamuju and Majene districts in West Sulawesi province.