Magnitude
6.6
Date-Time
Friday, September 16, 2011 at 19:26:42 UTC
Saturday, September 17, 2011 at 04:26:42 AM at epicenter
Friday, September 16, 2011 at 9:26:42 AM HST
Location
40.288°N, 142.727°E
Depth
36.3 km (22.6 miles)
Region
NEAR THE EAST COAST OF HONSHU, JAPAN
Distances
107 km (66 miles) ESE (102°) from Hachinohe, Honshu, Japan
150 km (93 miles) ENE (64°) from Morioka, Honshu, Japan
180 km (112 miles) ESE (109°) from Aomori, Honshu, Japan
576 km (358 miles) NNE (26°) from TOKYO, Japan

TSUNAMI BULLETIN NUMBER 001
PACIFIC TSUNAMI WARNING CENTER/NOAA/NWS
ISSUED AT 1939Z 16 SEP 2011

THIS BULLETIN APPLIES TO AREAS WITHIN AND BORDERING THE PACIFIC OCEAN AND ADJACENT SEAS…EXCEPT ALASKA…BRITISH COLUMBIA… WASHINGTON…OREGON AND CALIFORNIA.

… TSUNAMI INFORMATION BULLETIN …

THIS BULLETIN IS FOR INFORMATION ONLY.

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 – 1927Z 16 SEP 2011
COORDINATES – 40.2 NORTH 143.1 EAST
DEPTH – 10 KM
LOCATION – OFF EAST COAST OF HONSHU JAPAN
MAGNITUDE – 6.6

EVALUATION

NO DESTRUCTIVE WIDESPREAD TSUNAMI THREAT EXISTS BASED ON HISTORICAL EARTHQUAKE AND TSUNAMI DATA.

HOWEVER – EARTHQUAKES OF THIS SIZE SOMETIMES GENERATE LOCAL TSUNAMIS THAT CAN BE DESTRUCTIVE ALONG COASTS LOCATED WITHIN A HUNDRED KILOMETERS OF THE EARTHQUAKE EPICENTER. AUTHORITIES IN THE REGION OF THE EPICENTER SHOULD BE AWARE OF THIS POSSIBILITY AND TAKE APPROPRIATE ACTION.

THIS WILL BE THE ONLY BULLETIN ISSUED FOR THIS EVENT UNLESS ADDITIONAL INFORMATION BECOMES AVAILABLE.

THE JAPAN METEOROLOGICAL AGENCY MAY ALSO ISSUE TSUNAMI MESSAGES FOR THIS EVENT TO COUNTRIES IN THE NORTHWEST PACIFIC AND SOUTH CHINA SEA REGION. IN CASE OF CONFLICTING INFORMATION… THE MORE CONSERVATIVE INFORMATION SHOULD BE USED FOR SAFETY.

THE WEST COAST/ALASKA TSUNAMI WARNING CENTER WILL ISSUE PRODUCTS FOR ALASKA…BRITISH COLUMBIA…WASHINGTON…OREGON…CALIFORNIA.

Magnitude
6.2
Date-Time
Friday, September 16, 2011 at 21:08:05 UTC
Saturday, September 17, 2011 at 07:08:05 AM at epicenter
Friday, September 16, 2011 at 11:08:05 HST
Location
40.221°N, 143.050°E
Depth
20.2 km (12.6 miles)
Region
OFF THE EAST COAST OF HONSHU, JAPAN
Distances
135 km (84 miles) ESE (103°) from Hachinohe, Honshu, Japan
173 km (107 miles) ENE (70°) from Morioka, Honshu, Japan
209 km (130 miles) ESE (108°) from Aomori, Honshu, Japan
583 km (362 miles) NNE (29°) from TOKYO, Japan