On Wednesday Afternoon a Shallow M5.2 FORESHOCK struck in the East China Sea 108km from Naze (Japan).

Written by Earthquakelist.org on July 2nd, 2025. Last updated July 19th, 2025.

A shallow and significant M5.2 foreshock struck in the East China Sea 108 kilometer from Naze, Japan in the afternoon of Wednesday July 2nd, 2025.

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Earthquake Summary

This earthquake hit under water in the East China Sea, 104 kilometers (64 mi) off the coast of Japan, 108 kilometer north-northwest 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:	Jul 2, 2025 14:53 (Tokyo Time) - Jul 2, 2025 05:53 Universal Time.
Location:	108 km NNW of Naze, Kagoshima, Japan. Coordinates 29°17'40"N 129°9'10"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.2 Detected by 172 stations. Maximum Error Range ±0.044 .
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 108 kilometer (67 mi) north-northwest of the epicenter.

A complete list of nearby places is included below.

Overview of nearby places

This is likely a foreshock

This earthquake was followed by a stronger MAG-5.6 earthquake, classifying this earthquake as a foreshock.

Overview of foreshocks and aftershocks

More earthquakes coming?

Earthquakes can create aftershocks. These are generally at least 1 magnitude lower than any main shock, and as time passes the chance and strength of aftershocks decreases.

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 June 29th, 2025, when a 5.4 magnitude earthquake hit 24 km (15 mi) further east-northeast. An even stronger magnitude 6.7 earthquake struck on November 13th, 2015.

In total, 50 earthquakes with a magnitude of 5.2 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 19/07/25 08:08 (). 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 us7000qa57
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20250702_0000068
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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