Japan 7.2 Quake Strikes Off the Coast of Honshu

Earthquake Measuring 7.2Mw Strikes Off  the Coast of Sendai, Japan

The mainshock struck about 168km east of Sendai and was followed by at least 4 significant aftershocks, as of posting, the largest of which measured 6.3Mw.

The quake was widely felt throughout Tokyo region, but there was no report of major damage or casualties in the capital.

Earthquake Details (Source: JMA)

• Occurred at (locakl time):  11:45 JST   on 09 Mar 2011
• Epicenter
  • Latitude:  38.3ºN
  • Longitude: 143.3ºE
• Depth: 10km
• Magnitude: 7.2Mw
• Region: Sanriku Oki

Earthquake location map. Epicenter is marked by a red cross. Bubbles indicate severity of the tremor as felt by local monitoring stations throughout Japan. Source: JMA.

Distances (USGS)

• 168 km (104 miles) E of Sendai, Honshu, Japan
• 193 km (119 miles) SE of Morioka, Honshu, Japan
• 216 km (134 miles) E of Yamagata, Honshu, Japan
• 413 km (256 miles) NE of TOKYO, Japan

Earthquake location map.  Source: USGS

Aftershocks:

Tsunami Details

Initial tsunami observation: Click here for full details.

Tsunami Warning/Advisory

Issued at 11:48 JST 09 Mar 2011
Tsunami Advisory
PACIFIC COAST OF AOMORI PREF.
IWATE PREF.
MIYAGI PREF.
FUKUSHIMA PREF.

Latest Information: Tsunami Information NUMBER 7