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Minor mag. 2.6 earthquake - North Pacific Ocean, 18 km west of Muroran, Hokkaido, Japan, on Sunday, Aug 21, 2022 at 7:39 am (GMT +9) -

Minor magnitude 2.6 earthquake at 124 km depth

20 Aug 22:46 UTC: First to report: NIED after 7 minutes.

Earthquake details

Date & time	Aug 20, 2022 22:39:19 UTC -
Local time at epicenter	Sunday, Aug 21, 2022 at 7:39 am (GMT +9)
Status	Confirmed
Magnitude	2.6
Depth	123.6 km
Epicenter latitude / longitude	42.288°N / 140.769°E (North Pacific Ocean, Japan)
Antipode	42.288°S / 39.231°W
Shaking intensity	Not felt
Felt
Primary data source	NIED (National Research Institute for Earth Science and Disaster Resilience)
Nearest volcano	Komaga-take (26 km / 16 mi)
Nearby towns and cities	18 km (11 mi) W of Muroran (pop: 96,200) \| Show on map \| Quakes nearby 22 km (13 mi) SSW of Date (pop: 35,300) \| Show on map \| Quakes nearby 44 km (27 mi) N of Honchō (Kameda-gun) (pop: 30,000) \| Show on map \| Quakes nearby 57 km (35 mi) N of Hakodate (pop: 275,700) \| Show on map \| Quakes nearby 79 km (49 mi) WSW of Tomakomai (pop: 174,800) \| Show on map \| Quakes nearby 93 km (58 mi) SW of Chitose (pop: 92,900) \| Show on map \| Quakes nearby 99 km (61 mi) SSW of Sapporo (pop: 1,883,000) \| Show on map \| Quakes nearby 740 km (460 mi) N of Tokyo (pop: 8,336,600) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Clear Sky 20.8°C (69 F), humidity: 72%, wind: 2 m/s (4 kts) from WNW
Estimated seismic energy released	5 x 10⁸ joules (139 kilowatt hours, equivalent to 0.12 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
2.6	124 km	Japan: UCHIURA BAY REGION	NIED

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Seismograms

Seismic station: Eniwa (JEW/JP network) | Distance from quake: 83 km / 52 mi | Show on map | Station Info

Seismic station Eniwa: 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

At magnitude 2.6, this quake might have been felt very close to the epicenter and under calm conditions.

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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