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Mag. 5.0 earthquake - North Pacific Ocean, Japan, on Saturday, May 8, 2021 01:19 pm (GMT +9)

Moderate magnitude 5.0 earthquake at 72 km depth

8 May 04:26 UTC: First to report: NIED after 7 minutes.

Earthquake details

Date & time	May 8, 2021 04:19:07 UTC
Local time at epicenter	Saturday, May 8, 2021 01:19 pm (GMT +9)
Status	Confirmed
Magnitude	5
Depth	71.8 km
Epicenter latitude / longitude	32.048°N / 140.679°E North Pacific Ocean, Japan
Antipode	32.048°S / 39.321°W
Shaking intensity	Weak shaking near epicenter
Felt	0 reports
Primary data source	NIED (National Research Institute for Earth Science and Disaster Resilience)
Nearest volcano	Myojinsho (74 km / 46 mi)
Weather at epicenter at time of quake	Overcast Clouds 21.6°C (71 F), humidity: 90%, wind: 6 m/s (11 kts) from SW
Estimated seismic energy released	2 x 10¹² joules (554 megawatt hours, equivalent to 477 tons of TNT) \| about seismic energy

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Nearby places

Distance	Place	Max. shaking intensity(*)	Region	Country
334 km (207 mi) NNW of epicenter	Shimoda (pop: 26,700)	II Very weak	Prefectura de Shizuoka	Japan
372 km (231 mi) NNW of epicenter	Yokosuka (pop: 429,000)	II Very weak	Kanagawa	Japan
377 km (234 mi) N of epicenter	Kisarazu (pop: 122,500)	II Very weak	Chiba	Japan
377 km (235 mi) NNW of epicenter	Kamakura (pop: 166,000)	II Very weak	Kanagawa	Japan
378 km (235 mi) NNW of epicenter	san dao (pop: 113,500)	II Very weak	Mishima Shi, Prefectura de Shizuoka	Japan
379 km (235 mi) NNW of epicenter	Numazu (pop: 204,300)	II Very weak	Prefectura de Shizuoka	Japan
388 km (241 mi) NNW of epicenter	Yokohama (pop: 3,574,400)	II Very weak	Kanagawa	Japan
390 km (242 mi) NNW of epicenter	Shizuoka (pop: 701,600)	II Very weak	Prefectura de Shizuoka	Japan
398 km (248 mi) N of epicenter	Chiba (pop: 919,700)	II Very weak	Chiba	Japan
415 km (258 mi) NNW of epicenter	Tokyo (pop: 8,336,600)	II Very weak	Tokyo	Japan

Notes:
(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.

Compare Quake Data

Data for the same earthquake as reported by different agencies

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	Depth	Time GMT	Epicenter	Agency
5.0	72 km (45 mi)	2021-05-8 04:19:07	E OFF HACHIJOJIMA ISLAND, Japan	NIED (National Research Institute for Earth Science and Disaster Resilience)
4.9	99 km (62 mi)	2021-05-8 04:19:06	Southeast of Honshu, Japan 7.9 km (4.9 mi) epicenter difference with NIED	GFZ (German Research Centre for Geosciences)
5.2	100 km (62 mi)	2021-05-8 04:19:08	IZU ISLANDS, JAPAN REGION 29 km (18 mi) epicenter difference with NIED	EMSC (European-Mediterranean Seismological Centre)
5.2	80 km (50 mi)	2021-05-8 04:19:07	Izu Islands, Japan Region 34 km (21 mi) epicenter difference with NIED	USGS (United States Geological Survey)
5.1	85 km (53 mi)	2021-05-8 04:19:06	Southeast of Honshu, Japan 21 km (13 mi) epicenter difference with NIED	GeoAu (Geoscience Australia )

Most recent quakes Top 20 past 24 hrs Quakes in Japan

Seismograms

Seismic station: Matsushiro, Japan (MAJO/IU network) | Distance from quake: 549 km / 341 mi | Show on map | Station Info

Seismic station Matsushiro, Japan: vertical movement plot around time of quake (source: IRIS/BUD)

Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.02-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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.

Aftershocks

[More info]

Recorded aftershocks, latest first (1 quake)

Date and Time GMT	Mag Depth	Region	Details
May 8, 2021 12:07 3 years ago	4.7 76 km	North Pacific Ocean, Japan	More

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