No widespread tsunami threat from 6.7M earthquake in Japan

Magnitude

6.7

Date-Time

Wednesday, June 22, 2011 at 21:50:48 UTC

Thursday, June 23, 2011 at 06:50:48 AM at epicenter

Wednesday, June 22, 2011 at 11:50:48 HST

Location

39.980°N, 142.247°E

Depth

32 km (19.9 miles)

Region

NEAR THE EAST COAST OF HONSHU, JAPAN

Distances

88 km (54 miles) SE of Hachinohe, Honshu, Japan

99 km (61 miles) ENE of Morioka, Honshu, Japan

157 km (97 miles) SE of Aomori, Honshu, Japan

524 km (325 miles) NNE of TOKYO, Japan

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETER

REPORTED BY THE JAPAN METEOROLOGICAL AGENCY.

ORIGIN TIME – 2150Z 22 JUN 2011

COORDINATES – 39.9 NORTH 142.5 EAST

DEPTH – 20 KM

LOCATION – NEAR EAST COAST OF HONSHU JAPAN

MAGNITUDE – 6.7

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.

The Tsunami Advisory issued by the Japan Meteorological Agency for Iwate Prefecture in Japan has been cancelled as of 7:45 a.m. JST June 23, 2011.