Earthquake info: Light Mag. 4.5 Earthquake – 28 km southwest of Tokushima, Japan on Monday, May 23, 2022 at 8:20 a.m. (GMT +9)

Light mag.  Magnitude 4.5 earthquake - 28 km southwest of Tokushima, Japan on Monday, May 23, 2022 at 08:20 (GMT +9)

Light earthquake of magnitude 4.5 at 39 km depth

May 22 23:26 UTC: First to report: EMSC after 6 minutes.
23 May 00:00: Now uses USGS data updates

Updated Sun 22 May 2022, 23:30

Moderate magnitude 4.3 earthquake 26 km southwest of Tokushima, Japan

Magnitude 4.3 earthquake 26 km west of Tokushima, Japan, May 23, 2022 at 08:20 (GMT +9)

Magnitude 4.3 earthquake 26 km west of Tokushima, Japan, May 23, 2022 at 08:20 (GMT +9)

A magnitude 4.3 earthquake occurred on the morning of Monday, May 23, 2022 at 8:20 a.m. local time near Tokushima, Tokushima Shi, Japan, as reported by the Euro-Mediterranean Seismological Center (EMSC ).
According to preliminary data, the earthquake was located at a moderately shallow depth of 40 km. The exact magnitude, epicenter and depth of the quake could be revised in the coming hours or minutes as seismologists review the data and refine their calculations, or as other agencies release their report.
Our monitoring service has identified a second report from Japan’s National Research Institute for Earth Science and Disaster Resilience (NIED) which lists the quake at a magnitude of 4.5.
Based on preliminary seismic data, the quake should not have caused significant damage, but was likely felt by many people as a slight vibration in the epicenter area.
Weak tremors could have been felt at Kamojimachō-jōgejima (pop. 24,400) located 9 km from the epicenter, Ishii (pop. 26,400) 15 km away, Wakimachi (pop. 17,700) 16 km away, Tokushima ( pop. 267,300) 26 km away and Komatsushimachō (pop. 42,600) 26 km away.
Other cities near the epicenter where the quake could have been felt as a very weak tremor include Anan (pop. 55,400) located 34 km from the epicenter, Narutochō-mitsuishi (pop. 64,100) at 36 km and Ikedachō (pop. 15,900) 46 km away.
VolcanoDiscovery will automatically update the magnitude and depth if these change and will follow up if other major earthquake news becomes available. If you are in the area, please let us know about your experience through our reporting mechanism, online or through our mobile app. This will help us provide more first-hand updates to anyone around the world who wants to learn more about this earthquake.

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Seismic data

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Date hour : May 22, 2022 23:20:22 UTC –
Local time at epicenter: Monday, May 23, 2022 at 8:20 a.m. (GMT +9)
Magnitude: 4.5
Depth: 39.2 km

Latitude / longitude of the epicenter: 33.9541°N / 134.2906°E (Myōzai Gun, Tokushima, Japan)
Antipode: 33.954°S / 45.709°W
Nearest volcano: Sanbe (201 km / 125 mi)

Nearby towns and villages:
14 km (9 mi) SSW of Kamojimachō-jōgejima (pop: 24,400) –> See nearby earthquakes!
19 km (12 mi) southwest of Ishii (pop: 26,400) –> See nearby earthquakes!
27 km (17 mi) west of Komatsushimachō (pop: 42,600) –> See nearby earthquakes!
28 km (18 mi) WSW of Tokushima (pop: 267,300) –> See nearby earthquakes!
33 km (21 mi) west of anan (pop: 55,400) –> See nearby earthquakes!
40 km (25 mi) southwest of Narutochō-mitsuishi (Tokushima-ken) (pop: 64,100) –> See nearby earthquakes!
138 km (86 mi) southwest of Osaka (Osaka) (pop: 2,592,400) –> See nearby earthquakes!
530 km (329 mi) WSW of Tokyo (pop: 8,336,600) –> See nearby earthquakes!

Weather at the epicenter at the time of the earthquake:
Some clouds 22.3°C (72 F), humidity: 56%, wind: 3 m/s (5 kts) from NNW

Main data source: USGS (United States Geological Survey)

Estimated energy released: 3.5×1011 joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) | on seismic energy

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Data for the same earthquake reported by different agencies

Info: The more agencies report the same earthquake and publish similar data, the more confidence you can have in the data. It normally takes up to a few hours for the seismic parameters to be calculated with near optimum accuracy.

Mag. Depth Location Source
4.5 39 kilometers 13 km on the southwest of Kamojimacho-jōgejima, Japan USGS
4.4 37 kilometers Japan: TOKUSHIMA PREF NIED
4.5 39 kilometers Shikoku, Japan RaspberryShake
4.5 39 kilometers SHIKOKU, JAPAN CSEM

Previous earthquakes in the same area

Click here to search our database for past earthquakes in the same area since 1900!

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