7.1 Earthquake Offshore Fukushima – Honshu April 7, 2011 TSUNAMI WARNING

Magnitude 7.1 
Date-Time
  • Thursday, April 07, 2011 at 14:32:00 UTC
  • Thursday, April 07, 2011 at 11:32:00 PM at epicenter
Location 38.200°N, 142.000°E
Depth 40 km (24.9 miles) set by location program
Region NEAR THE EAST COAST OF HONSHU, JAPAN
Distances
  • 98 km (61 miles) E (93°) from Sendai, Honshu, Japan
  • 144 km (90 miles) ENE (68°) from Fukushima, Honshu, Japan
  • 159 km (99 miles) NE (37°) from Iwaki, Honshu, Japan
  • 345 km (215 miles) NE (35°) from TOKYO, Japan
Location Uncertainty Error estimate not available
Parameters NST= 12, Nph= 12, Dmin=385 km, Rmss=1 sec, Gp=148°,
M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=1
Source
Event ID at00ljadqj

http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/at00ljadqj.php

UPDATE: TSUNAMI WARNINGS CANCELLED.

Issued at 00:55 JST 08 Apr 2011  

Tsunami Warnings and/or Advisories have been cancelled.

*******************Text********************
Tsunami Warnings have been cancelled for the following coastal regions of Japan:
  MIYAGI PREF.
The above-mentioned Tsunami Warnings/Advisories have been cancelled.

Tsunami Advisories have been cancelled for the following coastal regions of Japan:
  IWATE PREF.
  FUKUSHIMA PREF.
  PACIFIC COAST OF AOMORI PREF.
  IBARAKI PREF.
The above-mentioned Tsunami Warnings/Advisories have been cancelled.

*******Tsunami Warning/Advisory now in effect********
No Tsunami Warnings and Advisories are currently in effect.

 

 ******* Earthquake Information ********

 

  Occurred at 

 

 23:32 JST 07 Apr 2011

 

  Region name 

 

 MIYAGI-KEN OKI

 

  Latitude

 

 38.2N

 

  Longitude

 

 142.0E

 

  Depth 

 

 about 40 km

 

  Magnitude 

 

 7.4

Tsunami Warning/AdvisoryIssued at 23:34 JST 07 Apr 2011  ******************Headline******************
Tsunami Warnings (Tsunami) have been issued for the following coastal regions of Japan:
  MIYAGI PREF.
Evacuate immediately to safe place away from the shore in the above coastal regions.
Tsunami advisories are currently in effect in other coastal regions of Japan.*******************Text********************
Tsunami Warnings have been issued for the following coastal regions of Japan:
<Tsunami Warning (Tsunami)>
  *MIYAGI PREF.
Evacuate immediately to safe place away from the shore in the above coastal regions.Tsunami Advisories have been issued for the following coastal regions of Japan:
<Tsunami Advisory>
  PACIFIC COAST OF AOMORI PREF.
  *IWATE PREF.
  FUKUSHIMA PREF.
  IBARAKI PREF.Tsunamis are expected to arrive imminently in the following coastal regions of Japan
(coastal regions shown above with * marks):
  MIYAGI PREF.
  IWATE PREF.***********About Tsunami Forecast************
<Tsunami Warning (Tsunami)>
Tsunami height is expected to be up to 2 meters. Caution advised.
<Tsunami Advisory>
Tsunami height is expected to be about 0.5 meters. Attention advised.
******* Earthquake Information ********
 Occurred at  23:32 JST 07 Apr 2011
 Region name  MIYAGI-KEN OKI
 Latitude 38.2N
 Longitude 142.0E
 Depth  about 40 km
 Magnitude  7.4

 http://www.jma.go.jp/en/tsunami/

000 WEHW42 PHEB 071442 TIBHWX HIZ001>003-005>009-012>014-016>021-023>026-071642- TSUNAMI INFORMATION STATEMENT NUMBER 1 NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI 442 AM HST THU APR 07 2011 TO – CIVIL DEFENSE IN THE STATE OF HAWAII SUBJECT – TSUNAMI INFORMATION STATEMENT THIS STATEMENT IS FOR INFORMATION ONLY. NO ACTION REQUIRED. AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS ORIGIN TIME – 0432 AM HST 07 APR 2011 COORDINATES – 38.2 NORTH 142.0 EAST LOCATION – NEAR EAST COAST OF HONSHU JAPAN MAGNITUDE – 7.4 MOMENT EVALUATION BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS ADDITIONAL DATA ARE RECEIVED. http://ptwc.weather.gov/ptwc/text.php?id=hawaii.2011.04.07.144221

To: U.S. West Coast, Alaska, and British Columbia coastal regions From: NOAA/NWS/West Coast and Alaska Tsunami Warning Center Subject: Tsunami Information Statement #1 issued 04/7/2011 at 7:40AM PDT A strong earthquake has occurred, but a tsunami IS NOT expected along the California, Oregon, Washington, British Columbia, or Alaska coast. NO tsunami warning, watch or advisory is in effect for these areas. Based on the earthquake magnitude, location and historic tsunami records, a damaging tsunami IS NOT expected along the California, Oregon, Washington, British Columbia, and Alaska coasts. At coastal locations which have experienced strong ground shaking, local tsunamis are possible due to underwater landslides. At 7:32 AM Pacific Daylight Time on April 7, an earthquake with preliminary magnitude 7.4 occurred near the east coast of Honshu, Japan . (Refer to the United States Geological Survey for official earthquake parameters.) Pacific coastal regions outside California, Oregon, Washington, British Columbia, and Alaska should refer to the Pacific Tsunami Warning Center messages for information on the event. This will be the only statement issued for this event by the West Coast/Alaska Tsunami Warning Center unless conditions warrant. 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 was generated.)

http://wcatwc.arh.noaa.gov/2011/04/07/ljadqj/01/messageljadqj-01.htm

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One Response to “7.1 Earthquake Offshore Fukushima – Honshu April 7, 2011 TSUNAMI WARNING”

  1. Change…the gift that keeps on giving.

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