Earthquakes
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East Siberia Quake to Trigger New Series of Tremors - Scientist

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© RIA Novosti. Ivan AfanasievCrack in apartment in Kyzyl
The 6.8 magnitude earthquake that struck the Tyva republic in Russia's East Siberia on Sunday will trigger a new series of earthquakes in the region, a Russian scientist said.

"Judging from the data received from our stations, this is not the continuation of the Tyva earthquake that occurred in late 2011 with its epicenter at the Academician Obruchev Ridge but signals a new series of earthquakes," said Viktor Seleznyov, director of the Geophysical Institute at the Siberian branch of the Russian Academy of Sciences.

The earthquake, the second powerful tremor in East Siberia in the past two months, had its epicenter located 107 km (66 miles) east of the city of Kyzyl near the border with Mongolia, at a depth of 15 km. The earthquake struck at 10:20 a.m. Moscow time (06:20 GMT) with a magnitude of 6 to 7 points in the epicenter.

The earthquake caused no casualties or damage, according to preliminary data reported by the Russian Emergencies Ministry.

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USGS: Southwestern Siberia - Earthquake Magnitude 6.7

Siberian Quake_260212
© USGSEarthquake Location
Date-Time
Sunday, February 26, 2012 at 06:17:19 UTC

Sunday, February 26, 2012 at 01:17:19 PM at epicenter

Time of Earthquake in other Time Zones

Location
51.731°N, 95.921°E

Depth
11.7 km (7.3 miles)

Region
SOUTHWESTERN SIBERIA, RUSSIA

Distances
101 km (62 miles) E of Kyzyl, Russia

333 km (206 miles) NE of Ulaangom, Mongolia

375 km (233 miles) SE of Abakan, Russia

3758 km (2335 miles) ENE of MOSCOW, Russia

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Panic After Powerful Quake Rocks Taiwan

Taipei: A shallow 5.9-magnitude earthquake sent panicked people fleeing onto the streets in Taiwan's second-largest city of Kaohsiung on Sunday as rail services were temporarily suspended.

The quake struck 57 kilometres (35 miles) east of the city at 10:34 am (0234 GMT) at a depth of just four kilometres, the US Geological Survey said.

The Hong Kong Observatory measured the quake at magnitude 6.0, while Taiwan's Seismology Centre put the magnitude at 6.1. TV footage showed residents of Kaohsiung running into the streets, fearing their buildings might collapse. Services on a high-speed railway linking Kaohsiung with Taiwan's capital of Taipei in the north were halted temporarily, railway officials told AFP.

There were no immediate reports of injuries or major damage. The greater metropolitan area of Kaohsiung has a population of nearly three million people. Taiwan is regularly hit by earthquakes as the island lies near the junction of two tectonic plates.

In September 1999, a 7.6-magnitude tremor killed around 2,400 people in the deadliest natural disaster in the island's recent history.

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USGS: Earthquake Magnitude 4.3 - Island of Hawaii

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© USGS
Date-Time:
Friday, February 24, 2012 at 13:52:45 UTC
Friday, February 24, 2012 at 03:52:45 AM at epicenter

Location:
19.438°N, 155.309°W

Depth:
5.7 km (3.5 miles)

Region:
ISLAND OF HAWAII, HAWAII

Distances:
8 km (5 miles) W (261°) from Volcano, HI

19 km (12 miles) W (259°) from Fern Forest, HI

21 km (13 miles) WSW (237°) from Mountain View, HI

38 km (24 miles) SW (218°) from Hilo, HI

335 km (208 miles) SE (128°) from Honolulu, HI

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Japan quake studies suggest harder jolt to US Pacific Northwest possible

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© Nevada Seismological Laboratory, University of Nevada, RenoThe red dots represent aftershocks from the Japan quake, which roughly trace the area that shook hardest there. Superimposed on a map of the Northwest, the result shows where the strongest ground motion is likely to strike during the next quake on the Cascadia subduction zone, the underwater fault marked by the black line. The green line is the relative location of Japan's subduction zone.
Studies of last year's giant Tohoku earthquake and tsunami in Japan suggest that shaking from a Cascadia megaquake could be stronger than expected along the coasts of Washington, Oregon and British Columbia, researchers reported Sunday at the annual meeting of the American Association for the Advancement of Science.

Scientists are still unraveling last year's giant Tohoku earthquake and tsunami in Japan, and some of what they're finding doesn't bode well for the Pacific Northwest.

Detailed analyses of the way the Earth warped along the Japanese coast suggest that shaking from a Cascadia megaquake could be stronger than expected along the coasts of Washington, Oregon and British Columbia, researchers reported Sunday at the annual meeting of the American Association for the Advancement of Science.

"The Cascadia subduction zone can be seen as a mirror image of the Tohoku area," said John Anderson, of the University of Nevada.

Anderson compiled ground-motion data from the Japan quake and overlaid it on a map of the Pacific Northwest, which has a similar fault - called a subduction zone - lying offshore.

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US: Hawaii scientists monitor earthquake swarm near Kilauea volcano

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© USGS
48 small quakes and counting on the Big Island as of Wednesday morning

Scientists at the USGS Hawaiian Volcano Observatory are keeping an eye on a swarm of small earthquakes around the active Kilauea volcano. In its morning status report, HVO wrote that there "is an ongoing seismic swarm just northwest of the summit."

From the Wednesday status report, updated at 7:29 HST:
A swarm of shallow earthquakes started after midnight last night about 5 km (3 mi) northwest of Halema'uma'u Crater that was ongoing as of this posting. Forty-eight earthquakes were strong enough to be located beneath Kilauea: 39 quakes within the swarm so far at a maximum rate of 6/hr (including a preliminary magnitude-3.4 quake at 6:56 am), two deep quakes beneath the southwest rift zone, two beneath the southeast summit caldera, one within the upper east rift zone, four on south flank faults. Seismic tremor levels were low and dropped slightly during deflation.
Most of the quakes have been in the magnitude 2.0 vicinity, but a few reached over 3.0.

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US: 4.0 earthquake in Missouri shakes 9 states

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© USGS
East Prairie - Residents got an early morning jolt Tuesday after an earthquake rumbled at least nine states, causing minor damage and a big stir in the town of East Prairie, near the quake's epicenter.

"I live on a main highway and five miles from the reported epicenter," Rhonda Brack, a manager at Tasters Restaurant in East Prairie, told msnbc.com. "It sounded like a semi-truck and it rattled my windows and it rattled my house."

She said the magnitude 4.0 earthquake has been the hot topic of conversation since the popular breakfast and coffee house opened up at 5:30 a.m. Tuesday.

"We're no strangers to quakes, but this one was different," Brack said. "We had one four years ago and that one rolled. This one was straight underneath us and lasted for 30 seconds or so. It reminded you of lightning."

U.S. Geological Survey geophysicist John Bellini said the rural farming community of East Prairie is known for its seismic activity.

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US: Earthquake Magnitude 4.0 - Southeastern Missouri

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© USGS
Date-Time:
Tuesday, February 21, 2012 at 09:58:43 UTC
Tuesday, February 21, 2012 at 03:58:43 AM at epicenter

Time of Earthquake in other Time Zones

Location:
36.850°N, 89.409°W

Depth:
5 km (3.1 miles)

Region:
SOUTHEASTERN MISSOURI

Distances:
16 km (9 miles) ESE of Sikeston, Missouri

27 km (16 miles) SW of Cairo, Illinois

197 km (122 miles) NNE of Memphis, Tennessee

310 km (192 miles) SE of JEFFERSON CITY, Missouri

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US: Oregon's Offshore Earthquake of February 2012: One of the Largest Recorded in the State

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© USGS
The Earth moved for many over this Valentine's Day, but not due to romance - a magnitude 6.0 earthquake struck around 250 km off the west coast of Oregon on February 14, 2012. The Valentine's Day quake is notable not only for its size (it is one of the largest ever to have occurred in the state or off its coast) but also in terms of the complex tectonic setting in which it occurred.

The Oregon Earthquake of February 2012

The Oregon earthquake occurred on an ocean ridge, at a divergent boundary - where new crust is created by upward movement of hot and buoyant rock from the earth's interior - between two of the large slabs of crust (tectonic plates) which make up the surface of the earth. Preliminary information from the United States Geological Survey (USGS) shows that the quake occurred at a depth of 10km on the fracture zone associated with the Juan de Fuca Ridge, which marks the western boundary of the Juan de Fuca microplate.

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Peru: Earthquake Magnitude 4.8 Earthquake - Lima

Peru seism
© USGS
The USGS has reported a 4.8 magnitude earthquake has struck LIMA, Peru on Monday, February 13, 2012 at 11:42:20 PM . The epicenter was located approximately:

37 km (23 miles) SSE (161°) from LIMA, Peru
145 km (90 miles) NW (323°) from Chincha Alta, Peru
163 km (102 miles) SSE (153°) from Huacho, Peru

At a depth of 42.4 km (26.3 miles). There were no significant injuries or damage reported at this point, Friendly Forecast will update this report as events unfold. You can read the full LIMA, Peru earthquake details here.