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Strong mag. 5.2 earthquake - North Pacific Ocean, 144 km northeast of Hachinohe, Aomori, Japan, on Wednesday, May 18, 2022 at 7:17 am (GMT +10) -

Strong mag. 5.2 earthquake - North Pacific Ocean, 144 km northeast of Hachinohe, Aomori, Japan, on Wednesday, May 18, 2022 at 7:17 am (GMT +10) Strong mag. 5.2 earthquake - North Pacific Ocean, 144 km northeast of Hachinohe, Aomori, Japan, on Wednesday, May 18, 2022 at 7:17 am (GMT +10)

Strong magnitude 5.2 earthquake at 19 km depth

17 May 21:26 UTC: First to report: GFZ after 9 minutes.
17 May 21:37: Now using data updates from USGS
17 May 22:06: Magnitude recalculated from 5.1 to 5.2. Hypocenter depth recalculated from 33.4 to 27.6 km (from 21 to 17.1 mi). Epicenter location corrected by 7.2 km (4.5 mi) towards WNW.
24 May 03:02: Hypocenter depth recalculated from 27.6 to 18.5 km (from 17.1 to 11.5 mi). Epicenter location corrected by 1.9 km (1.2 mi) towards SE.

Earthquake details

Date & timeMay 17, 2022 21:17:17 UTC -
Local time at epicenterWednesday, May 18, 2022 at 7:17 am (GMT +10)
StatusConfirmed
Magnitude5.2
Depth18.5 km
Epicenter latitude / longitude40.9952°N / 143.0786°E (North Pacific Ocean, Japan)
Antipode40.995°S / 36.921°W
Shaking intensityModerate shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoE-san (183 km / 114 mi)
Nearby towns and cities144 km (89 mi) ENE of Hachinohe (pop: 239,000) | Show on map | Quakes nearby
146 km (91 mi) ENE of Misawa (pop: 42,800) | Show on map | Quakes nearby
159 km (99 mi) E of Mutsu (pop: 49,200) | Show on map | Quakes nearby
160 km (100 mi) SSE of Shizunai-furukawachō (pop: 22,400) | Show on map | Quakes nearby
178 km (111 mi) NNE of Miyako (pop: 51,700) | Show on map | Quakes nearby
198 km (123 mi) E of Aomori (pop: 298,400) | Show on map | Quakes nearby
271 km (168 mi) SSE of Sapporo (pop: 1,883,000) | Show on map | Quakes nearby
660 km (410 mi) NNE of Tokyo (pop: 8,336,600) | Show on map | Quakes nearby
271 km (169 mi) S of Hokkaido Island (pop: 5,500,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeScattered Clouds 9.2°C (49 F), humidity: 98%, wind: 3 m/s (6 kts) from SW
Estimated seismic energy released4 x 1012 joules (1.11 gigawatt hours, equivalent to 951 tons of TNT) | about seismic energy
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
5.219 km144 Km ENE of Hachinohe, JapanUSGS
5.240 kmHOKKAIDO, JAPAN REGIONEMSC
5.228 kmHokkaido, Japan RegionRaspberryShake
5.310 kmJapan: Near SapporoRENASS
5.110 km148 Km ENE of Hachinohe, JapanGFZ
5.037 kmOff East Coast of Honshu, JapanGeoAu

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.
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Aftershocks

[More info]

Recorded aftershocks, latest first (4 quakes)

Date and timeMag
Depth
LocationDetails
Jun 21, 2022 10:04
9 days ago
3.9

35 km
North Pacific Ocean, 143 km E of Hachinohe, Aomori, JapanMore
May 23, 2022 03:02
5 weeks ago
2.5

17 km
North Pacific Ocean, JapanMore
May 20, 2022 18:13
6 weeks ago
3.0

35 km
North Pacific Ocean, 145 km E of Hachinohe, Aomori, JapanMore
May 17, 2022 23:06
6 weeks ago
3.6

5 km
North Pacific Ocean, 140 km E of Hachinohe, Aomori, JapanMore

Earlier earthquakes in the same area

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