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Moderate mag. 4.2 earthquake - 62 km northwest of Nayoro, Hokkaido, Japan, on Tuesday, Aug 16, 2022 at 6:54 pm (GMT +9) -

Moderate mag. 4.2 earthquake - 62 km northwest of Nayoro, Hokkaido, Japan, on Tuesday, Aug 16, 2022 at 6:54 pm (GMT +9) Moderate mag. 4.2 earthquake - 62 km northwest of Nayoro, Hokkaido, Japan, on Tuesday, Aug 16, 2022 at 6:54 pm (GMT +9)

Moderate magnitude 4.2 earthquake at 10 km depth

16 Aug 10:01 UTC: First to report: EMSC after 6 minutes.
16 Aug 13:54: Now using data updates from USGS
Update Tue, 16 Aug 2022, 10:06

Magnitude 4.1 earthquake strikes near Wakkanai, Wakkanai Shi, Hokkaido, Japan

4.1 quake 16 Aug 6:54 pm (GMT +9)
4.1 quake 16 Aug 6:54 pm (GMT +9)
Just 12 minutes ago, a 4.1-magnitude earthquake struck near Wakkanai, Wakkanai Shi, Hokkaido, Japan. The tremor was recorded early evening on Tuesday, August 16th, 2022, at 6:54 pm local time, at a shallow depth of 10 km below the surface.
The event was filed by the European-Mediterranean Seismological Centre (EMSC), the first seismological agency to report it.
A second report was later issued by the citizen-seismograph network of RaspberryShake, which listed it as a magnitude 4.1 earthquake as well. A third agency, Japan's National Research Institute for Earth Science and Disaster Resilience (NIED), reported the same quake at magnitude 4.0.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Nakagawa (pop. 1,600) located 10 km from the epicenter, Horonobe (pop. 2,400) 23 km away, and Toyotomi (pop. 4,100) 34 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Bifuka (pop. 4,600) located 51 km from the epicenter, Makubetsu (pop. 25,900) 57 km away, Wakkanai (pop. 41,600) 66 km away, and Nayoro (pop. 26,500) 67 km away.

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Earthquake details

Date & timeAug 16, 2022 09:54:36 UTC -
Local time at epicenterTuesday, Aug 16, 2022 at 6:54 pm (GMT +9)
Depth10.0 km
Epicenter latitude / longitude44.8448°N / 142.1053°E (Nakagawa Gun, Hokkaido, Japan)
Antipode44.845°S / 37.895°W
Shaking intensityLight shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoRishiri (77 km / 48 mi)
Nearby towns and cities4 km (2 mi) NNE of Nakagawa (pop: 1,590) | Show on map | Quakes nearby
28 km (17 mi) SE of Horonobe (pop: 2,420) | Show on map | Quakes nearby
39 km (24 mi) SE of Toyotomi (pop: 4,050) | Show on map | Quakes nearby
62 km (38 mi) NNW of Nayoro (pop: 26,500) | Show on map | Quakes nearby
63 km (39 mi) SSE of Makubetsu (Wakkanai) (pop: 25,900) | Show on map | Quakes nearby
71 km (44 mi) SSE of Wakkanai (pop: 41,600) | Show on map | Quakes nearby
121 km (75 mi) N of Asahikawa (pop: 356,600) | Show on map | Quakes nearby
207 km (129 mi) NNE of Sapporo (pop: 1,883,000) | Show on map | Quakes nearby
Estimated seismic energy released1.3 x 1011 joules (35 megawatt hours, equivalent to 30.1 tons of TNT) | about seismic energy
Show interactive Map
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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.
4.210 km61 Km NNW of Nayoro, JapanUSGS
4.210 kmHokkaido, Japan RegionRaspberryShake


Seismic station: Yuzhno Sakhalinsk, Russia (YSS/IU network) | Distance from quake: 240 km / 149 mi | Show on map | Station Info
Seismic station Yuzhno Sakhalinsk, Russia: 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. Source: IRIS Buffer of Uniform Data (BUD) webtool
Show more

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.

Earlier earthquakes in the same area

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