Magnitude 6.1 earthquake struck Hokkaido, Japan

Magnitude 6.1 earthquake struck Hokkaido, Japan

Magnitude 6.1 earthquake struck Hokkaido, Japan on Wednesday, May 23, 2012 at 15:02:25 UTC. Epicenter was located 109 km (68 miles) NNE (26 degrees) of Hachinohe, Honshu, 120 km (74 miles) ESE (111 degrees) of Hakodate, Hokkaido, 129 km (80 miles) ENE (61 degrees) of Aomori, Honshu and 666 km (414 miles) NNE (17 degrees) of Tokyo (41.378N 142.073E). According to USGS the depth of epicenter was 40.7 km (25.3 miles).

Tohoku Electric Power has reported that there were NO power outages. The Mutsu nuclear installations and the Ogawara Nuclear plant are reported to be operating normally.

Trains have been halted for a while during and after the quake

Aomori authorities have inspected various strategic buildings like airports, runways, etc and found no structural damage.

Issued atOccurred atRegion NameMagnitude
00:06 JST 24 May 201200:02 JST 24 May 2012Aomori-ken Toho-okiM6.0
12:21 JST 21 May 201212:19 JST 21 May 2012Okinawa-honto Hokusei-okiM5.0
16:24 JST 20 May 201216:20 JST 20 May 2012Sanriku OkiM6.2
04:09 JST 20 May 201204:05 JST 20 May 2012Sanriku OkiM5.8
17:23 JST 18 May 201217:19 JST 18 May 2012Ibaraki-ken NambuM4.8
"-" in the above information represents an indeterminable value. (Source: JMA)

  • Wednesday, May 23, 2012 at 15:02:25 UTC
  • Thursday, May 24, 2012 at 12:02:25 AM at epicenter
Location41.378°N, 142.073°E
Depth40.7 km (25.3 miles)
Distances107 km (66 miles) NNE of Hachinohe, Honshu, Japan
119 km (73 miles) ESE of Hakodate, Hokkaido, Japan
127 km (78 miles) ENE of Aomori, Honshu, Japan
663 km (411 miles) NNE of TOKYO, Japan
Location Uncertaintyhorizontal +/- 13.7 km (8.5 miles); depth +/- 6.5 km (4.0 miles)
ParametersNST=539, Nph=540, Dmin=114.7 km, Rmss=0.65 sec, Gp= 29°,
M-type=teleseismic moment magnitude (Mw), Version=9
  • Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)
Event IDusb0009wev

Featured image: Google Earth + USGS


Producing content you read on this website takes a lot of time, effort, and hard work. If you value what we do here, please consider becoming a supporter.



Jason Donaldson 9 years ago

For what reason would government want to hide such an issue.. Besides the fact of chaos reigning as people run riot just like ants scrambling from oncoming waters...

Post a comment

Your name: *

Your email address: *

Comment text: *

The image that appears on your comment is your Gravatar