Posted on 11/14/2007 8:03:44 AM PST by Vercingetorixbc
WEPA40 PHEB 141556 TSUPAC HIZALL-141755-
TSUNAMI BULLETIN NUMBER 001 PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS ISSUED AT 1556Z 14 NOV 2007
THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC OCEAN AND ADJACENT SEAS...EXCEPT ALASKA...BRITISH COLUMBIA... WASHINGTON...OREGON AND CALIFORNIA.
... A TSUNAMI WARNING IS IN EFFECT ...
A TSUNAMI WARNING IS IN EFFECT FOR
CHILE / PERU
FOR ALL OTHER AREAS COVERED BY THIS BULLETIN... IT IS FOR INFORMATION ONLY AT THIS TIME.
THIS BULLETIN IS ISSUED AS ADVICE TO GOVERNMENT AGENCIES. ONLY NATIONAL AND LOCAL GOVERNMENT AGENCIES HAVE THE AUTHORITY TO MAKE DECISIONS REGARDING THE OFFICIAL STATE OF ALERT IN THEIR AREA AND ANY ACTIONS TO BE TAKEN IN RESPONSE.
AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
ORIGIN TIME - 1541Z 14 NOV 2007 COORDINATES - 22.2 SOUTH 69.9 WEST DEPTH - 59 KM LOCATION - NORTHERN CHILE MAGNITUDE - 7.7
EVALUATION
IT IS NOT KNOWN THAT A TSUNAMI WAS GENERATED. THIS WARNING IS BASED ONLY ON THE EARTHQUAKE EVALUATION. AN EARTHQUAKE OF THIS SIZE HAS THE POTENTIAL TO GENERATE A DESTRUCTIVE TSUNAMI THAT CAN STRIKE COASTLINES IN THE REGION NEAR THE EPICENTER WITHIN MINUTES TO HOURS. AUTHORITIES IN THE REGION SHOULD TAKE APPROPRIATE ACTION IN RESPONSE TO THIS POSSIBILITY. THIS CENTER WILL MONITOR SEA LEVEL GAUGES NEAREST THE REGION AND REPORT IF ANY TSUNAMI WAVE ACTIVITY IS OBSERVED. THE WARNING WILL NOT EXPAND TO OTHER AREAS OF THE PACIFIC UNLESS ADDITIONAL DATA ARE RECEIVED TO WARRANT SUCH AN EXPANSION.
ESTIMATED INITIAL TSUNAMI WAVE ARRIVAL TIMES AT FORECAST POINTS WITHIN THE WARNING AND WATCH AREAS ARE GIVEN BELOW. ACTUAL ARRIVAL TIMES MAY DIFFER AND THE INITIAL WAVE MAY NOT BE THE LARGEST. A TSUNAMI IS A SERIES OF WAVES AND THE TIME BETWEEN SUCCESSIVE WAVES CAN BE FIVE MINUTES TO ONE HOUR.
LOCATION FORECAST POINT COORDINATES ARRIVAL TIME -------------------------------- ------------ ------------ CHILE ANTOFAGASTA 23.3S 70.4W 1612Z 14 NOV IQUIQUE 20.2S 70.1W 1625Z 14 NOV CALDERA 27.1S 70.8W 1642Z 14 NOV ARICA 18.5S 70.3W 1643Z 14 NOV COQUIMBO 29.9S 71.3W 1704Z 14 NOV PERU MOLLENDO 17.1S 72.0W 1650Z 14 NOV SAN JUAN 15.3S 75.2W 1706Z 14 NOV
BULLETINS WILL BE ISSUED HOURLY OR SOONER IF CONDITIONS WARRANT. THE TSUNAMI WARNING WILL REMAIN IN EFFECT UNTIL FURTHER NOTICE.
THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTS FOR ALASKA...BRITISH COLUMBIA...WASHINGTON...OREGON...CALIFORNIA.
PaMom
Summary:
Magnitude M 7.7
Region ANTOFAGASTA, CHILE
Date time 2007-11-14 at 15:40:53.0 UTC
Location 22.19 S ; 69.84 W
Depth 60 km
Distances 99 km W Calama (pop 143,084 ; local time 12:40 2007-11-14)
38 km E Tocopilla (pop 24,460 ; local time 12:40 2007-11-14)
More seismicity information (Moment tensors, phases pickings, etc.)
Maps:
Global view Regional view Local view
References for tectonic plate boundaries:
Bird, P. (2003) An updated digital model of plate boundaries,
Geochemistry Geophysics Geosystems, 4(3), 1027.
Google maps view: Seismicity from the previous 7 days in the area .
Regional seismicity:
Maps in progress...
More information at:
USGS/NEIC Denver, USA
List of data providers:
USGS/NEIC, Denver, USA (NEIR)
Map in progress...
http://www.emsc-csem.org/index.php?page=current⊂=detail&id=69899
((( TMer Ping )))
Well it’s sort of deep, and the initial epicenter seems to be on land, so the tsunami chances are reduced.
To: U.S. West Coast, Alaska, and British Columbia coastal regions
From: NOAA/NWS/West Coast and Alaska Tsunami Warning Center (Experimental Web Product)
Subject: Tsunami Advisory #1 issued 11/14/2007 at 7:56AM PST
This Tsunami Advisory is for residents along the California, Oregon, Washington, British Columbia, and Alaska coast. NO tsunami watch or warning is in effect for these areas.
A Tsunami Advisory is issued by the WCATWC whenever the Pacific Tsunami Warning Center in Ewa Beach, Hawaii has issued a warning for other regions in the Pacific Basin, and NO tsunami watch or warning is in effect for the states and provinces listed above. It is unlikely that these regions will upgraded to a tsunami warning or watch. Please refer to the PTWC message for further information about the warning.
Based on the earthquake location, magnitude and historic tsunami records, a damaging tsunami IS NOT expected along the California, Oregon, Washington, British Columbia, and Alaska coasts. Some of these areas may experience non-damaging sea level changes. At coastal locations which have experienced strong ground shaking, local tsunamis are possible due to underwater landslides.
At 7:41 AM Pacific Standard Time on November 14, an earthquake with preliminary magnitude 7.7 occurred in northern Chile. (Refer to the United States Geological Survey for official earthquake parameters.)
Messages will continue to be issued hourly by the WCATWC until the Pacific Tsunami Warning Center issues a cancellation or final message. See the WCATWC web site for basic tsunami information, safety rules, and a tsunami travel time map and table. (NOTE: Travel time maps and tables indicate forecasted times only, not that a wave dangerous to the U.S. west coast, British Columbia, or Alaska was generated.)
very norther Chile, west of Bolivia and just south of Peru
Sheesh, thats bigger than the Frisco quake early last century, isn’t it?
Just talking to a friend in Tecumo, well to the south. She didn’t feel a thing.
7.7 is one monster quake. Anybody know the population density of the region?
The Largest Earthquake in the World was recorded in Chile.
Chile
1960 May 22 19:11:14 UTC
Magnitude 9.5
ping
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