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Minor mag. 2.7 earthquake - 49 km west of Yamagata, Japan, on Thursday, Dec 8, 2022 at 1:58 am (GMT +9) -

Minor magnitude 2.7 earthquake at 140 km depth

7 Dec 17:06 UTC: First to report: NIED after 7 minutes.

Earthquake details

Date & time	Dec 7, 2022 16:58:54 UTC -
Local time at epicenter	Thursday, Dec 8, 2022 at 1:58 am (GMT +9)
Status	Confirmed
Magnitude	2.7
Depth	139.8 km
Epicenter latitude / longitude	38.307°N / 139.818°E (Nishiokitama-gun, Yamagata, Japan)
Antipode	38.307°S / 40.182°W
Shaking intensity	Not felt
Felt
Primary data source	NIED (National Research Institute for Earth Science and Disaster Resilience)
Nearest volcano	Hijiori (46 km / 29 mi)
Nearby towns and cities	30 km (18 mi) NW of Nagai (pop: 31,000) \| Show on map \| Quakes nearby 40 km (25 mi) W of Sagae (pop: 43,500) \| Show on map \| Quakes nearby 46 km (29 mi) S of Tsuruoka (pop: 99,800) \| Show on map \| Quakes nearby 48 km (30 mi) W of Tendō (pop: 65,400) \| Show on map \| Quakes nearby 49 km (30 mi) W of Yamagata (pop: 254,500) \| Show on map \| Quakes nearby 51 km (32 mi) NNW of Yonezawa (pop: 94,500) \| Show on map \| Quakes nearby 92 km (57 mi) W of Sendai (Miyagi) (pop: 1,063,100) \| Show on map \| Quakes nearby 291 km (181 mi) N of Tokyo (pop: 8,336,600) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Snow 0.1°C (32 F), humidity: 99%, wind: 1 m/s (3 kts) from W
Estimated seismic energy released	7.1 x 10⁸ joules (197 kilowatt hours, equivalent to 0.169 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
2.7	140 km	Japan: NE NIIGATA PREF	NIED

Most recent quakes Top 20 past 24 hrs Quakes in Japan

Seismograms

Seismic station: Miyagi Marumori (JMM/JP network) | Distance from quake: 98 km / 61 mi | Show on map | Station Info

Seismic station Miyagi Marumori: 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

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Seismic station Miyagi Marumori: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Miyagi Marumori: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake, showing horizontal E-W and N-S ground movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Sado (JSD/JP network) | Distance from quake: 140 km / 87 mi | Show on map | Station Info

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

Seismic station Sado: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Sado: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Ibaraki Yasato (JYT/JP network) | Distance from quake: 233 km / 145 mi | Show on map | Station Info

Seismic station Ibaraki Yasato: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Ibaraki Yasato: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Ibaraki Yasato: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Aomori Tenma (JTM/JP network) | Distance from quake: 296 km / 184 mi | Show on map | Station Info

Seismic station Aomori Tenma: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Aomori Tenma: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Aomori Tenma: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

Seismic station: Kamikawa Asahi (JKA/JP network) | Distance from quake: 393 km / 244 mi | Show on map | Station Info

Seismic station Kamikawa Asahi: vertical movement plot around time of quake (source: IRIS/BUD)

Seismic station Kamikawa Asahi: horizontal (E-W) movement plot around time of quake (source: IRIS/BUD)

Seismic station Kamikawa Asahi: horizontal (N-S) movement plot around time of quake (source: IRIS/BUD)

Seismograms around time of quake.
Top: vertical movement, bottom: horizontal (E-W and N-S) movements. Source: IRIS Buffer of Uniform Data (BUD) webtool

User reports for this quake

At magnitude 2.7, 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.

Earlier earthquakes in the same area

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