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Minor mag. 3.3 earthquake - 37 km west of Hakodate, Hokkaido, Japan, on Tuesday, Aug 2, 2022 at 5:17 pm (GMT +9) -

Minor magnitude 3.3 earthquake at 186 km depth

2 Aug 08:26 UTC: First to report: NIED after 8 minutes.

Earthquake details

Date & time	Aug 2, 2022 08:17:48 UTC -
Local time at epicenter	Tuesday, Aug 2, 2022 at 5:17 pm (GMT +9)
Status	Confirmed
Magnitude	3.3
Depth	185.5 km
Epicenter latitude / longitude	41.823°N / 140.299°E (Hiyama-gun, Hokkaido, Japan)
Antipode	41.823°S / 39.701°W
Shaking intensity	Not felt
Felt
Primary data source	NIED (National Research Institute for Earth Science and Disaster Resilience)
Nearest volcano	Nigorigawa (35 km / 22 mi)
Nearby towns and cities	29 km (18 mi) W of Kamiiso (pop: 38,100) \| Show on map \| Quakes nearby 34 km (21 mi) WSW of Honchō (Kameda-gun) (pop: 30,000) \| Show on map \| Quakes nearby 37 km (23 mi) W of Hakodate (pop: 275,700) \| Show on map \| Quakes nearby 79 km (49 mi) SW of Muroran (pop: 96,200) \| Show on map \| Quakes nearby 86 km (53 mi) SSW of Date (pop: 35,300) \| Show on map \| Quakes nearby 97 km (60 mi) NW of Mutsu (Aomori) (pop: 49,200) \| Show on map \| Quakes nearby 163 km (101 mi) SSW of Sapporo (pop: 1,883,000) \| Show on map \| Quakes nearby 684 km (425 mi) N of Tokyo (pop: 8,336,600) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Moderate Rain 24.4°C (76 F), humidity: 82%, wind: 3 m/s (5 kts) from W
Estimated seismic energy released	5.6 x 10⁹ joules (1.56 megawatt hours, equivalent to 1.34 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
3.3	186 km	Japan: OSHIMA PEN REG HOKKAIDO	NIED

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Seismograms

Seismic station: Aomori Tenma (JTM/JP network) | Distance from quake: 132 km / 82 mi | Show on map | Station Info

Seismic station Aomori Tenma: 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: 0.5-10.0 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.

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