Shallow M5.1 Earthquake hit in the East China Sea 104km from Naze (Japan) on Monday Evening.

Written by Earthquakelist.org on June 23rd, 2025. Last updated July 18th, 2025.

Just before midnight of Monday June 23rd, 2025, a shallow and significant Magnitude 5.1 earthquake hit in the East China Sea 104 kilometer from Naze, Japan.

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Earthquake Summary

This earthquake hit under water in the East China Sea, 91 kilometers (57 mi) off the coast of Japan, 104 kilometer north of Naze in Kagoshima. The center of this earthquake had a very shallow depth of 10 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time:	Jun 23, 2025 23:36 (Tokyo Time) - Jun 23, 2025 14:36 Universal Time.
Location:	104 km north of Naze, Kagoshima, Japan. Coordinates 29°18'10"N 129°32'21"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.1 Detected by 35 stations. Maximum Error Range ±0.052 .
Depth:	10 km (6 mi) A very shallow depth.
Tsunami Risk:	Low tsunami risk Earthquakes under MAG-6.5 do not usually cause tsunami's. Always stay cautious - More info here.

Nearby towns and cities

This earthquake may have been felt in Japan . The closest significant population center near the earthquake is Naze in Kagoshima, Japan. Naze is located 104 kilometer (65 mi) north of the epicenter.

A complete list of nearby places is included below.

Overview of nearby places

17 Aftershocks detected

This main shock was followed by 17 smaller aftershocks. A 5.1 magnitude earthquake hit 16 hrs later 17 km (11 mi) west of this earthquake.

In the days before this main shock, 47 smaller foreshocks were detected. A 5 magnitude earthquake hit 1 day earlier nearby.

Overview of foreshocks and aftershocks

More earthquakes coming?

Aftershocks are usually at least 1 order of magnitude less strong than main shocks. The more time passes, the smaller the chance and likely strength of any potential aftershocks.

In only six percent of cases, significant earthquakes are followed by a larger main shock, making the current earthquake a foreshock. While the chance of this happening is not so large, it is adviced to maintain cautiousness in the hours and days following a major earthquake.

Earthquakes like this happen often in the region

Earthquakes of this strength are very common in the region. This is the strongest earthquake to hit since April 2nd, 2025, when a 6.1 magnitude earthquake hit 267 km (166 mi) further north-east. An even stronger magnitude 6.7 earthquake struck on November 13th, 2015.

In total, 62 earthquakes with a magnitude of 5.1 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every 2 months.

Low tsunami risk

Based on early data it appears this earthquake was not strong enough (lower than MAG-6.5) to be likely to cause destructive tsunami's. However this earthquake appeared to have hit at a shallow depth under sea, so stay cautious and monitor advice from local authorities.

Tsunami Risk Factors

Sources

Last updated 18/07/25 18:08 (). This article contains currently available information about the earthquake and is automatically composed. We continue to update this article up to a few days after the earthquake occurred.

1. US Geographic Society (USGS): Earthquake us6000qlyq
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20250623_0000156
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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