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Light mag. 4.6 earthquake - North Pacific Ocean, 14 km south of Asahi, Chiba, Japan, on Friday, May 26, 2023 at 9:01 pm (GMT +9) -

Light magnitude 4.6 earthquake at 43 km depth

26 May 12:08 UTC: First to report: NIED after 6 minutes.
26 May 12:29: Now using data updates from USGS

Earthquake details

Date & time	May 26, 2023 12:01:51 UTC -
Local time at epicenter	Friday, May 26, 2023 at 9:01 pm (GMT +9)
Status	Confirmed
Magnitude	4.6
Depth	42.5 km
Epicenter latitude / longitude	35.5968°N / 140.7027°E (North Pacific Ocean, Japan)
Antipode	35.597°S / 39.297°W
Shaking intensity	Weak shaking
Felt	2 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Oshima (154 km / 96 mi)
Nearby towns and cities	14 km (9 mi) SSE of Asahi (pop: 41,700) \| Show on map \| Quakes nearby 18 km (11 mi) SE of Yōkaichiba (Sosa) (pop: 32,700) \| Show on map \| Quakes nearby 19 km (12 mi) SW of Hasaki (pop: 39,200) \| Show on map \| Quakes nearby 31 km (19 mi) E of Tōgane (pop: 66,300) \| Show on map \| Quakes nearby 35 km (22 mi) E of Yachimata (pop: 83,300) \| Show on map \| Quakes nearby 41 km (25 mi) ESE of Нарита (pop: 100,600) \| Show on map \| Quakes nearby 92 km (57 mi) E of Tokyo (pop: 8,336,600) \| Show on map \| Quakes nearby 97 km (60 mi) ENE of Yokohama (pop: 3,574,400) \| Show on map \| Quakes nearby 196 km (122 mi) NE of Shikine-jima Island (pop: 600) \| Show on map \| Quakes nearby 248 km (154 mi) E of Honshu Island (pop: 104,000,000) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds 16.3°C (61 F), humidity: 71%, wind: 5 m/s (10 kts) from S
Estimated seismic energy released	5 x 10¹¹ joules (139 megawatt hours, equivalent to 120 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.	Depth	Location	Source
4.6	43 km	14 Km SSE of Asahi, Japan	USGS
4.6	43 km	Near East Coast of Honshu, Japan	RaspberryShake
4.6	30 km	NEAR EAST COAST OF HONSHU, JAPAN	EMSC
4.4	46 km	Japan: NEAR CHOSHI CITY	NIED
5.0	10 km	Near East Coast of Honshu, Japan	GFZ

Most recent quakes Top 20 past 24 hrs Quakes in Japan

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

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Tokyo (88.4 km W of epicenter) [Map] / Very weak shaking (MMI II) / very short

Shibuya / Weak shaking (MMI III) / rattling, vibrating / 10-15 s

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