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shield volcano with steady stream of volcanic smog being blown westard, blue sky in background
Augustine volcano viewed from the north on May 22, 2006 at 2:30 p.m. Photographer Game McGimsey working with the Alaska Volcano Observatory and the U.S. Geological Survey
A man exits a restaurant after he looked for his belongings. An earthquake rocked Port au Prince on January 12. Photo Marco Dormino, photo by United Nations Development Programme
A man exits a restaurant after he looked for his belongings. An earthquake rocked Port au Prince on January 12. Photo Marco Dormino, photo by United Nations Development Programme

 

People run from an approaching tsunami in Hilo, Hawaii on 1 April 1946. Photo courtesy of the Pacific Tsunami Museum in Hilo, Hawaii.
People run from an approaching tsunami in Hilo, Hawaii on 1 April 1946. Photo courtesy of the Pacific Tsunami Museum in Hilo, Hawaii.

 

Avalanche Zinal / Zinalrothorn - Besso - Obergabelhorn, March 4, 2007
Avalanche Zinal / Zinalrothorn – Besso – Obergabelhorn, March 4, 2007

 

 

Hurricane Ivan's landfall, Fort Walton Beach, Florida, September 2004. Image by Chris Duval.
Hurricane Ivan’s landfall, Fort Walton Beach, Florida, September 2004. Image by Chris Duval.

 

Federal Signal thunderbolt 1003 (dual tone) siren head located in Louisville, Kentucky. Photo by Ben Franske
Federal Signal thunderbolt 1003 (dual tone) siren head located in Louisville, Kentucky. Photo by Ben Franske

 

Tsunami Evacuation Route Sign in New Zealand
Tsunami Evacuation Route Sign in New Zealand

 

 

Occluded mesocyclone tornado near Anadarko, Oklahoma on 3 May 1999. Photo by OAR/ERL/National Severe Storms Laboratory (NSSL)
Occluded mesocyclone tornado near Anadarko, Oklahoma on 3 May 1999. Photo by OAR/ERL/National Severe Storms Laboratory (NSSL)

 

 

GEOS 380