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Light mag. 4.5 earthquake - 7.5 km north of Nagano, Japan, on Tuesday, Sep 13, 2022 at 5:05 pm (GMT +9) -

Light magnitude 4.5 earthquake at 423 km depth

13 Sep 08:13 UTC: First to report: NIED after 7 minutes.

Earthquake details

Date & time	Sep 13, 2022 08:05:44 UTC -
Local time at epicenter	Tuesday, Sep 13, 2022 at 5:05 pm (GMT +9)
Status	Confirmed
Magnitude	4.5
Depth	423.4 km
Epicenter latitude / longitude	36.714°N / 138.157°E (Nagano Shi, Nagano, Japan)
Antipode	36.714°S / 41.843°W
Shaking intensity	Not felt
Felt
Primary data source	NIED (National Research Institute for Earth Science and Disaster Resilience)
Nearest volcano	Myoko (20 km / 12 mi)
Nearby towns and cities	7 km (5 mi) NNW of Nagano (pop: 360,200) \| Show on map \| Quakes nearby 19 km (12 mi) WSW of Nakano (pop: 42,700) \| Show on map \| Quakes nearby 24 km (15 mi) SW of Iiyama (pop: 25,300) \| Show on map \| Quakes nearby 35 km (22 mi) NE of Ōmachi (Omachi) (pop: 30,600) \| Show on map \| Quakes nearby 36 km (23 mi) NNW of Ueda (pop: 126,600) \| Show on map \| Quakes nearby 49 km (30 mi) S of Jōetsu (Niigata) (pop: 204,100) \| Show on map \| Quakes nearby 179 km (111 mi) NW of Tokyo (pop: 8,336,600) \| Show on map \| Quakes nearby 193 km (120 mi) NW of Kawasaki (Kanagawa) (pop: 1,306,800) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Broken Clouds 24.2°C (76 F), humidity: 75%, wind: 2 m/s (5 kts) from NNE
Estimated seismic energy released	3.5 x 10¹¹ joules (98.6 megawatt hours, equivalent to 84.8 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
4.5	423 km	Japan: NORTHERN NAGANO PREF	NIED

Most recent quakes Top 20 past 24 hrs Quakes in Japan

Seismograms

Seismic station: Matsushiro, Japan (MAJO/IU network) | Distance from quake: 19 km / 12 mi | Show on map | Station Info

Seismic station Matsushiro, Japan: 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: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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

Seismic station Matsushiro, Japan: 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: Gifu Kurokawa (JGF/JP network) | Distance from quake: 143 km / 89 mi | Show on map | Station Info

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

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

Seismic station Gifu Kurokawa: 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: Miyagi Marumori (JMM/JP network) | Distance from quake: 266 km / 165 mi | Show on map | Station Info

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

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

Seismic station: Hiroshima Saijyo (JHS/JP network) | Distance from quake: 493 km / 306 mi | Show on map | Station Info

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

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

Seismic station Hiroshima Saijyo: 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: Daejeon, Korea (TJN/PS network) | Distance from quake: 964 km / 599 mi | Show on map | Station Info

Seismic station Daejeon, Korea: 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: 0.2-5.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool

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

Seismic station Daejeon, Korea: 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

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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