On Wednesday Night a Shallow M5.1 FORESHOCK struck in the East China Sea 109km from Naze (Japan).

Written by Earthquakelist.org on July 1st, 2025. Last updated July 18th, 2025.

A shallow and significant M5.1 foreshock struck in the East China Sea 109 kilometer from Naze, Japan in the night of Wednesday July 2nd, 2025.

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Earthquake Summary

This earthquake hit under water in the East China Sea, 99 kilometers (62 mi) off the coast of Japan, 109 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:	Jul 2, 2025 04:32 (Tokyo Time) - Jul 1, 2025 19:32 Universal Time.
Location:	109 km north of Naze, Kagoshima, Japan. Coordinates 29°20'40"N 129°24'18"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.1 Detected by 23 stations. Maximum Error Range ±0.065 .
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 . Naze in Kagoshima, Japan is the nearest significant place from the epicenter. The earthquake occurred 109 kilometer (68 mi) north of Naze.

An overview of nearby towns and cities is available in the overview below.

Overview of nearby places

Shaking reported by 1 person

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 1 person has reported shaking in one place in Japan.We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.

Places with most reports:

• Kagoshima, Kagoshima, Japan: 1 person.

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?

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.

It's always adviced to be cautious of the risk of a larger shock following any significant earthquake, however this risk is fairly small. There is a roughly 94 percent change that no larger main shock will follow in the days following this 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 30th, 2025, when a 5.2 magnitude earthquake hit 2.9 km (1.8 mi) further south-southwest. An even stronger magnitude 6.7 earthquake struck on November 13th, 2015.

In total, 65 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 20:58 (). This article is automatically generated based on available data. We keep checking multiple sources for additional information. This article gets updated as new details on this earthquake become available.

1. US Geographic Society (USGS): Earthquake us7000qa1v
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20250701_0000227
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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