Magnitude 4.7 earthquake recorded just 25 km off the Fukushima nuclear plant

Magnitude 4.7 earthquake recorded just 25 km off the Fukushima nuclear plant

4.7 magnitude earthquake just 25 km (15 miles) off the Fukushima nuclear plant was recorded on Sunday, April 15, 2012 at 10:36 UTC (19:36 JST). Epicenter was 23 km (14 miles) ENE of Iwaki, Honshu, Japan (37.103°N, 141.142°E).

USGS recorded depth of 30.7 km (19.1 miles). Japan Meteorological Agency (JMA) is also reporting 4.7 magnitude earthquake but with depth of 10km.

This is strongest earthquake recorded close to Fukushima nuclear plant today. A swarm of earthquakes was reported for the region yesterday.

Read more: The greatest single threat to humanity – Fukushima nuclear reactor no. 4 raises new global worries

The following is a list of all earthquakes reported by JMA for April 14 and part of April 15, 2012 (Updated: 12:06 UTC on April 15).

Issued atOccurred atRegion NameMagnitudeMaximum seismic intensity
(JMA Seismic Intensity)
19:42 JST 15 Apr 201219:36 JST 15 Apr 2012Fukushima-ken OkiM4.72
13:50 JST 15 Apr 201213:45 JST 15 Apr 2012Tokushima-ken HokubuM3.42
13:38 JST 15 Apr 201213:33 JST 15 Apr 2012Miyagi-ken OkiM3.11
08:22 JST 15 Apr 201208:18 JST 15 Apr 2012Ibaraki-ken OkiM3.61
05:46 JST 15 Apr 201205:41 JST 15 Apr 2012Ibaraki-ken OkiM4.02
03:01 JST 15 Apr 201202:57 JST 15 Apr 2012Tochigi-ken HokubuM2.01
02:30 JST 15 Apr 201202:26 JST 15 Apr 2012Fukushima-ken OkiM3.51
01:01 JST 15 Apr 201200:56 JST 15 Apr 2012Chiba-ken Toho-okiM3.71
00:12 JST 15 Apr 201200:08 JST 15 Apr 2012Fukushima-ken OkiM4.42
00:08 JST 15 Apr 201200:05 JST 15 Apr 2012Fukushima-ken OkiM4.42
23:18 JST 14 Apr 201223:13 JST 14 Apr 2012Fukushima-ken OkiM4.01
23:10 JST 14 Apr 201223:05 JST 14 Apr 2012Miyagi-ken OkiM2.61
22:58 JST 14 Apr 201222:53 JST 14 Apr 2012Ibaraki-ken OkiM3.81
22:22 JST 14 Apr 201222:17 JST 14 Apr 2012Fukushima-ken OkiM4.31
21:44 JST 14 Apr 201221:40 JST 14 Apr 2012Tokara-retto KinkaiM4.73
20:12 JST 14 Apr 201220:08 JST 14 Apr 2012Iwate-ken OkiM4.22
20:04 JST 14 Apr 201220:00 JST 14 Apr 2012Ibaraki-ken OkiM3.61
19:56 JST 14 Apr 201219:51 JST 14 Apr 2012Fukushima-ken OkiM4.62
19:52 JST 14 Apr 201219:48 JST 14 Apr 2012Fukushima-ken OkiM4.52
19:01 JST 14 Apr 201218:57 JST 14 Apr 2012Fukushima-ken OkiM3.91
18:30 JST 14 Apr 201218:25 JST 14 Apr 2012Ibaraki-ken OkiM5.03
18:10 JST 14 Apr 201218:06 JST 14 Apr 2012Ibaraki-ken OkiM3.91
17:50 JST 14 Apr 201217:46 JST 14 Apr 2012Fukushima-ken OkiM4.33
11:38 JST 14 Apr 201211:33 JST 14 Apr 2012Ibaraki-ken HokubuM3.31
11:15 JST 14 Apr 201211:10 JST 14 Apr 2012Chiba-ken Toho-okiM3.91
10:16 JST 14 Apr 201210:11 JST 14 Apr 2012Iwate-ken OkiM4.32
07:58 JST 14 Apr 201207:54 JST 14 Apr 2012Chiba-ken Toho-okiM3.62
04:42 JST 14 Apr 201204:37 JST 14 Apr 2012Hokkaido Hokusei-okiM2.61
04:03 JST 14 Apr 201204:00 JST 14 Apr 2012Ibaraki-ken OkiM3.93
03:29 JST 14 Apr 201203:25 JST 14 Apr 2012Miyagi-ken OkiM4.42
01:56 JST 14 Apr 201201:52 JST 14 Apr 2012Fukushima-ken OkiM4.32
01:01 JST 14 Apr 201200:57 JST 14 Apr 2012Fukushima-ken OkiM4.11
00:59 JST 14 Apr 201200:55 JST 14 Apr 2012Sanriku OkiM4.81
00:30 JST 14 Apr 201200:26 JST 14 Apr 2012Fukushima-ken OkiM4.42
00:01 JST 14 Apr 201223:56 JST 13 Apr 2012Miyagi-ken OkiM3.31

Details of April 15, 2012, 4.7 magnitude earthquake


Magnitude4.7
Date-Time
  • Sunday, April 15, 2012 at 10:36:53 UTC
  • Sunday, April 15, 2012 at 07:36:53 PM at epicenter
Location37.103°N, 141.142°E
Depth30.7 km (19.1 miles)
RegionNEAR THE EAST COAST OF HONSHU, JAPAN
Distances23 km (14 miles) ENE of Iwaki, Honshu, Japan
75 km (46 miles) ESE of Koriyama, Honshu, Japan
94 km (58 miles) SE of Fukushima, Honshu, Japan
200 km (124 miles) NE of TOKYO, Japan
Location Uncertaintyhorizontal +/- 19.8 km (12.3 miles); depth +/- 6.6 km (4.1 miles)
ParametersNST=172, Nph=172, Dmin=269.4 km, Rmss=0.69 sec, Gp=104°,
M-type=body wave magnitude (Mb), Version=7
Source
  • Magnitude: USGS NEIC (WDCS-D)
    Location: USGS NEIC (WDCS-D)
Event IDusc000944l



Featured image: Google Earth + USGS

Comments

Gordian Knot 7 years ago

Four earthquakes registering at 6.1, 6.0, 5.2, & 5.0 in Canada's NW Territory were removed from ANF or Array Network Facility between the hours of 19:39 & 19:46 on Saturday April 14th. Why they were moved I do not know, but they were large enough to be recorded by the ANF. I do have screen shots (posted by others) of the events as they occurred. http://anf.ucsd.edu/

Teo Blašković (@Gordian Knot) 7 years ago

Send us the screenshots or post below pls.

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