Earthquakes
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Seismograph

Shallow 6.1 magnitude earthquake jolts Indonesia

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A 6.1 magnitude earthquake jolted Indonesia's North Sulawesi province early Wednesday, according to the US Geological Survey, without triggering large waves or causing damage or casualties.

Indonesia's Meteorology, Climatology and Geophysics Agency recorded the intensity of the earthquake at magnitude 6.0 on the Richter scale, forcing many residents to flee outside.

The quake struck at 6.55 a.m. local time (2255GMT Tuesday) at a depth of 10 kilometers (6.2 miles) with the epicenter located 45 kilometers (27.9 miles) southeast of East Bolaang Mongondow Regency.

The tremor was also felt in the nearby province of Gorontalo.

There was no tsunami alert from the agency.

Indonesia, which lies along the Pacific Ring of Fire, has 130 active volcanoes, making it one of the world's most seismically active countries.

Seismograph

6.0 magnitude earthquake off the Solomon Islands

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6.0 magnitude earthquake 83 km from Lata, Temotu, Solomon Islands

UTC time: Sunday, February 23, 2025 18:16 PM
Your time: Sunday, February 23, 2025 at 6:16 PM GMT
Magnitude Type: mww
USGS page: M 6.0 - 80 km SE of Lata, Solomon Islands
USGS status: Reviewed by a seismologist
Reports from the public: 1 person

36 km depth

Bizarro Earth

The Coming Volcanic Winter?

QUESTION: Marty, Your computer warned that we would be heading into global cooling, not warming. But you also warned that we would see increased volcanic activity and the risk of a volcanic winter. Well, this has been the coldest winter I can remember. With Mt Spurr stirring, another offshore from California, and some hinting at Yellowstone erupting, do you have any update on this aspect from Socrates?

Darby
Mt Spurr, Alaska
© Armstrong Economics
ANSWER: Nothing has changed. We are heading into a more active volcano period, and that does raise the risk of a volcanic winter in which crops fail, and there will be a shortage of food. I still recommend that you stockpile two years' worth of food. It is not that you will save money, but that the supply may be seriously diminished. Our models of Wheat warn that this year is the Directional Change, and we can see a shortage into 2028.

Seismograph

Shallow magnitude 6.0 earthquake strikes Ethiopia, monitoring agencies say

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A magnitude 6.0 earthquake struck central Ethiopia on Friday, multiple earthquake monitoring agencies said.

The earthquake struck near Ethiopia's largest and most populous region, Oromiya with a population of nearly half a million, the United States Geological Survey (USGS) said.

The temblor was shallow, at a depth of 10 km (6.2 miles), the European Mediterranean Seismological Centre (EMSC) said.

Users took to social media platform X to share solidarity with those affected by the earthquake.

There were no immediate reports of damages or casualties from the earthquake.

The regions of Oromiya and Afar have been experiencing an intense seismo-volcanic activity that has forced the evacuation of thousands of residents and caused extensive infrastructure damage since December.

For the past few weeks, Afar and Oromiya have been shaken by a multitude of minor quakes after a nearby volcano began showing signs of imminent eruption at the start of the year.

Comment: Also pertinent: Dofen mountain (Afar region, Ethiopia): volcano in the area of ongoing quakes starts erupting jets of steam and mud


Seismograph

Tsunami alerts cancelled after major Caribbean earthquake of 7.6 magnitude on February 8

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Tsunami warnings issued after a powerful 7.6-magnitude earthquake rocked the Caribbean Sea have been cancelled, the US Geological Survey (USGS) has said.

Officials say the earthquake's epicentre was about 20 miles (32.1km) north of Honduras and 130 miles (209.2km) south-west of the Cayman Islands when it struck on Saturday evening local time.

The US Tsunami Warning System had initially issued warnings to more than a dozen of countries - including waves of up to three metres (10ft). But, it later said the threat had passed.

Advisories were also issued by the Tsunami Warning System for Puerto Rico and the Virgin Islands following the earthquake - which were both also later cancelled.

Seismograph

6.0 magnitude earthquake strikes south of Fiji Islands

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An earthquake with a magnitude of 6.0 jolted south of the Fiji Islands at 22:27 local time on Friday, the U.S. Geological Survey (USGS) said.

There were no immediate reports of casualty or damage, News.Az reports, citing foreign media.

The epicenter, with a depth of 59.2 km, was determined to be at 23.918 degrees south latitude and 176.143 degrees east longitude, according to the USGS.

The Pacific Tsunami Warning Center did not immediately issue any tsunami warning based on the quake.

Pacific island countries such as Fiji, Tonga and Vanuatu lie on the so-called Pacific "Ring of Fire," an arc of earthquake and volcanic zones where continental plates collide, producing frequent seismic activities.

Seismograph

Santorini landslides raise alarm after Cyclades earthquakes in Greece

The stark image captures the raw power of nature unleashed on the idyllic landscape of Santorini. Credit: Video screenshot, Facebook/Ermoupolis Meteorological news A video capturing landslides
© Ermoupolis MeteorologicalThe stark image captures the raw power of nature unleashed on the idyllic landscape of Santorini.
A video capturing landslides on Santorini highlights the potential risks after a series of earthquakes in the Cyclades' sea region, sparking concerns about the possibility of a major quake.

Six tremors whose magnitude exceeded 4 were recorded between 09:36 and 11:29 on Monday, with the largest at 11:29 having a magnitude of 4.9 and an epicenter 25 kilometers south-southwest of Arkesini, Amorgos. This was followed by another quake of magnitude 4.9 at 2:17 p.m. on Monday, with an epicenter 18 km south-southwest of Arkesini, Amorgos, and 231 km southeast of Athens.


Info

A warning from the trees

How bad can a solar storm be? Just ask a tree. Unlike human records, which go back hundreds of years, trees can remember solar storms for millennia.
Tree Rings
© Spaceweather
Nagoya University doctoral student Fusa Miyake made the discovery in 2012 while studying rings in the stump of a 1900-year-old Japanese cedar. One ring, in particular, drew her attention. Grown in the year 774-75 AD, it contained a 12% jump in radioactive carbon-14 (14C), about 20 times greater than ordinary fluctuations from cosmic radiation. Other teams confirmed the spike in wood from Germany, Russia, the United States, Finland, and New Zealand. Whatever happened, trees all over the world experienced it.

Most researchers think it was a solar storm — an extraordinary one. Often, we point to the Carrington Event of 1859 as the worst-case scenario for solar storms. The 774-75 AD storm was at least 10 times stronger; if it happened today, it would floor modern technology. Since Miyake's initial discovery, she and others have confirmed five more examples (12,450 BC, 7176 BC, 5259 BC, 664-663 BC, 993 AD). Researchers call them "Miyake Events."

Bizarro Earth

Oceanic plate between Arabian and Eurasian continental plates is breaking away

Arabian and Eurasian plates
© Available under Creative Commons 4.0 license from Solid Earth (https://doi.org/10.5194/se-15-1365-2024) and edited by Renas KoshnawMap of the northern Middle East showing the Arabian and Eurasian plates and their collision zone, as well as the study area, the Kurdistan region of Iraq.
An international research team led by the University of Göttingen has investigated the influence of the forces exerted by the Zagros Mountains in the Kurdistan region of Iraq on how much the surface of the Earth has bent over the last 20 million years. Their research revealed that in the present day, deep below the Earth's surface, the Neotethys oceanic plate - the ocean floor that used to be between the Arabian and Eurasian continents - is breaking off horizontally, with a tear progressively lengthening from southeast Turkey to northwest Iran. Their findings show how the evolution of the Earth's surface is controlled by processes deep within the planet's interior. The research was published in the journal Solid Earth.

When two continents converge over millions of years, the oceanic floor between them slides to great depths beneath the continents. Eventually, the continents collide, and masses of rock from their edges are lifted up into towering mountain ranges. Over millions of years, the immense weight of these mountains causes the Earth's surface around them to bend downward. Over time, sediments eroded from the mountains accumulate in this depression, forming plains such as Mesopotamia in the Middle East. The researchers modelled the downward bend of the Earth's surfaces based on the Zagros Mountain's load where the Arabian continent is colliding with Eurasia. They combined the resulting size of the depression with the computed topography based on the Earth's mantle to reproduce the unusually deep depression in the southeastern segment of the study area. The researchers found that the weight of the mountains alone cannot account for the 3-4 km deep depression that has formed and been filled with sediment over the past 15 million years.

Seismograph

A magnitude 6 earthquake in Taiwan leaves 15 people with minor injuries

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An earthquake with a preliminary magnitude of 6 struck southern Taiwan early Tuesday, according to the U.S. Geological Survey, leaving 15 people with minor injuries.

The quake hit at 12:17 a.m. local time (1600 GMT Monday), with its epicenter 12 kilometers (7 miles) north of Yujing at a preliminary depth of 10 kilometers (6 miles), USGS said. Taiwan's Central Weather Administration recorded a magnitude of 6.4.

There were no immediate reports of deaths from the quake, though rescuers were still assessing damage.

Taiwan's fire department said 15 people were sent to hospital for minor injuries. Among them were six people, including one child, who were rescued from a collapsed house in Nanxi District, Tainan city. The Zhuwei bridge on a provincial highway was reported to be damaged.