The quake has been revised to 8.7 in magnitude.
From the USGS website -
... TSUNAMI INFORMATION BULLETIN ...
NOTE CORRECTED EARTHQUAKE PARAMETERS.
THIS MESSAGE IS FOR INFORMATION ONLY. THERE IS NO TSUNAMI WARNING OR WATCH IN EFFECT.
AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
ORIGIN TIME - 1610Z 28 MAR 2005 (0010 local time)
COORDINATES - 2.3 NORTH 97.1 EAST
LOCATION - NORTHERN SUMATERA INDONESIA
MAGNITUDE - 8.7
MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY
GAUGE LOCATION LAT LON TIME AMPL PER
------------------------------------------------------------------------------
GAN 0.7N 73.2E 2023Z 0.05M 34MIN (0423 local time)
MALE 4.2N 73.5E 2026Z 0.09M 46MIN (0426 local time)
HANIMAADHOO 6.8N 73.2E 2043Z 0.20M 36MIN (0443 local time)
TIME - TIME OF THE MEASUREMENT
AMPL - AMPLITUDE IN METERS FROM MIDDLE TO CREST OR MIDDLE TO TROUGH OR HALF OF THE CREST TO TROUGH
PER - PERIOD OF TIME FROM ONE WAVE CREST TO THE NEXT
EVALUATION
SEA LEVEL READINGS INDICATE A TSUNAMI WAS GENERATED. IT MAY HAVE BEEN DESTRUCTIVE ALONG COASTS NEAR THE EARTHQUAKE EPICENTER. FOR THOSE AREAS - WHEN NO MAJOR WAVES ARE OBSERVED FOR TWO HOURS AFTER THE ESTIMATED TIME OF ARRIVAL OR DAMAGING WAVES HAVE NOT OCCURRED FOR AT LEAST TWO HOURS THEN LOCAL AUTHORITIES CAN ASSUME THE THREAT IS PASSED. DANGER TO BOATS AND COASTAL STRUCTURES CAN CONTINUE FOR SEVERAL HOURS DUE TO RAPID CURRENTS. AS LOCAL CONDITIONS CAN CAUSE A WIDE VARIATION IN TSUNAMI WAVE ACTION THE ALL CLEAR DETERMINATION MUST BE MADE BY LOCAL AUTHORITIES.
COUNTRIES IN THE BAY OF BENGAL AND ANDAMAN SEA REGIONS SHOULD EXPECT DECREASING WAVE HEIGHTS WHERE OBSERVED.
IT IS UNKNOWN IF A DESTRUCTIVE TSUNAMI THREAT EXIST FOR OTHER REGIONS OF THE INDIAN OCEAN.
THIS WILL BE THE FINAL BULLETIN ISSUED FOR THIS EVENT UNLESS ADDITIONAL INFORMATION BECOMES AVAILABLE.
From the USGS website -
... TSUNAMI INFORMATION BULLETIN ...
NOTE CORRECTED EARTHQUAKE PARAMETERS.
THIS MESSAGE IS FOR INFORMATION ONLY. THERE IS NO TSUNAMI WARNING OR WATCH IN EFFECT.
AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS
ORIGIN TIME - 1610Z 28 MAR 2005 (0010 local time)
COORDINATES - 2.3 NORTH 97.1 EAST
LOCATION - NORTHERN SUMATERA INDONESIA
MAGNITUDE - 8.7
MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY
GAUGE LOCATION LAT LON TIME AMPL PER
------------------------------------------------------------------------------
GAN 0.7N 73.2E 2023Z 0.05M 34MIN (0423 local time)
MALE 4.2N 73.5E 2026Z 0.09M 46MIN (0426 local time)
HANIMAADHOO 6.8N 73.2E 2043Z 0.20M 36MIN (0443 local time)
TIME - TIME OF THE MEASUREMENT
AMPL - AMPLITUDE IN METERS FROM MIDDLE TO CREST OR MIDDLE TO TROUGH OR HALF OF THE CREST TO TROUGH
PER - PERIOD OF TIME FROM ONE WAVE CREST TO THE NEXT
EVALUATION
SEA LEVEL READINGS INDICATE A TSUNAMI WAS GENERATED. IT MAY HAVE BEEN DESTRUCTIVE ALONG COASTS NEAR THE EARTHQUAKE EPICENTER. FOR THOSE AREAS - WHEN NO MAJOR WAVES ARE OBSERVED FOR TWO HOURS AFTER THE ESTIMATED TIME OF ARRIVAL OR DAMAGING WAVES HAVE NOT OCCURRED FOR AT LEAST TWO HOURS THEN LOCAL AUTHORITIES CAN ASSUME THE THREAT IS PASSED. DANGER TO BOATS AND COASTAL STRUCTURES CAN CONTINUE FOR SEVERAL HOURS DUE TO RAPID CURRENTS. AS LOCAL CONDITIONS CAN CAUSE A WIDE VARIATION IN TSUNAMI WAVE ACTION THE ALL CLEAR DETERMINATION MUST BE MADE BY LOCAL AUTHORITIES.
COUNTRIES IN THE BAY OF BENGAL AND ANDAMAN SEA REGIONS SHOULD EXPECT DECREASING WAVE HEIGHTS WHERE OBSERVED.
IT IS UNKNOWN IF A DESTRUCTIVE TSUNAMI THREAT EXIST FOR OTHER REGIONS OF THE INDIAN OCEAN.
THIS WILL BE THE FINAL BULLETIN ISSUED FOR THIS EVENT UNLESS ADDITIONAL INFORMATION BECOMES AVAILABLE.
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