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Thursday, 11 February 2010 15:15

Partial dome collapse 11 Feb 2010

article_6_dome_collapse_thumbA partial dome collapse event occurred at Soufriere Hills volcano on 11 Feb 2010.

The event lasted 55 minutes. Pyroclastic flow activity increased at 12:35 hrs, the first peak began at 13:04 hrs, and the event waned at 13:30 hrs.

The largest pyroclastic flows moved to the northeast towards the old airport at Trants and moved across the sea. Pyroclastic surges traveling across the sea on the northeast side of the island were visible from Lookout village. Pyroclastic flows also moved down Tyers Ghaut and into the Belham valley, reaching as far as Cork Hill.

The ash column rose to at least 50,000 ft (from pilot reports) and is drifting northeast. Minimal ash fall has been reported in inhabited regions.

http://www.montserratvolcanoobservatory.info/index.php?option=com_content&view=article&id=792%3Apartial-dome-collapse-11-feb-2010&catid=129%3Aslideshow-home&Itemid=94&lang=en

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Magnitude 3.8 – ILLINOIS

2010 February 10 09:59:35 UTC

http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/us2010snay.php#details

Earthquake Details

Magnitude 3.8
Date-Time
Location 41.969°N, 88.498°W
Depth 10 km (6.2 miles) set by location program
Region ILLINOIS
Distances
  • 3 km (2 miles) ENE (60°) from Virgil, IL
  • 4 km (2 miles) NW (323°) from Lily Lake, IL
  • 9 km (5 miles) NNW (344°) from Elburn, IL
  • 28 km (18 miles) NW (325°) from Aurora, IL
  • 69 km (43 miles) WNW (282°) from Chicago, IL
Location Uncertainty Error estimate not available
Parameters NST= 70, Nph= 70, Dmin=13 km, Rmss=0 sec, Gp= 83°,
M-type=regional moment magnitude (Mw), Version=A
Source
  • St. Louis University, St. Louis, Missouri, USA
Event ID us2010snay

Illinois

Seismicity Map

Seismicity of Illinois

Depth is in kilometers.
Purple Triangles: Cities
Purple Star: Capital City
Circles: Earthquakes (color represents depth range)

Earthquake locations are from the USGS/NEIC PDE catalog.

http://earthquake.usgs.gov/earthquakes/states/illinois/seismicity.php

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EARTHQUAKES IN THE STABLE CONTINENTAL REGION
Most of North America east of the Rocky Mountains has infrequent earthquakes. Here and there earthquakes are more numerous, for example in the New Madrid seismic zone centered on southeastern Missouri, in the Charlevoix-Kamouraska seismic zone of eastern Quebec, in New England, in the New York – Philadelphia – Wilmington urban corridor, and elsewhere. However, most of the enormous region from the Rockies to the Atlantic can go years without an earthquake large enough to be felt, and several U.S. states have never reported a damaging earthquake. The earthquakes that do occur strike anywhere at irregular intervals.

[etc.]

http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/us2010snay.php#summary

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Live Webcam on Earthcam of Niagara Falls including the Falls in the snow

http://www.earthcam.com/canada/niagarafalls/?cam=niagarafalls_str

(it has some great photos on the right side of the live cam showing the falls with the recent blizzard snow of Feb. 2010)

http://www.earthcam.com/network/

This page has a tremendous number of live cams from all over the US and all over the world

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http://www.weather.com/maps/maptype/satelliteusnational/index_large.html