Strong M6.5 Earthquake struck on Saturday Night in the Java Sea 131km from Tangerang (Indonesia).

Written by Earthquakelist.org on September 11th, 2026. Last updated October 11th, 2026.

A strong MAG-6.5 earthquake struck in the Java Sea 131 kilometer from Tangerang, Indonesia in the night of Saturday September 12th, 2026. Shaking may have been felt by a total of 130 thousand people.

Felt the earthquake? Share this article:

Earthquake Summary

This earthquake hit under water in the Java Sea, 100 kilometers (62 mi) off the coast of Indonesia, 131 kilometer north of Tangerang in Banten. The center of this earthquake had a deep depth of 372 km.

Date and Time:	Sep 12, 2026 04:23 (Jakarta Time) - Sep 11, 2026 21:23 Universal Time.
Location:	131 km north of Tangerang, Banten, Indonesia. Coordinates 5°1'38"S 106°52'6"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 6.5 Detected by 51 stations. Maximum Error Range ±0.043 .
Depth:	372 km (231 mi) A deep depth.
Max. Intensity:	IV Light On the Modified Mercalli Scale.
Tsunami Risk:	Small (but not impossible) Tsunami Risk Mag 6.5+ earthquakes under sea may cause tsunami's, but the risk is lower as this earthquake appears not to be very shallow. Always stay cautious - More info here.

Minimal impact predicted

Based on scientific estimates by the US Geographic Survey (USGS), the risk of high fatalities for this earthquake is classified at level GREEN (low). They expect an 90% likelyhood of between 0 and 1 fatalities.

The USGS classifies the economic impact of this earthquake at level GREEN (low). They expect an 90% likelyhood of between 0 and 1 million US Dollars in economic damage and impact.

Roughly 130 thousand people exposed to shaking

This earthquake may have been felt by around 130 thousand people. That is the expected population size of the area exposed to a level of shaking of II or higher on the Modified Mercalli scale according to the USGS.

An estimated 1,030 people were exposed to level IV. At this level, light shaking and likely no damage can be expected. The majority of people (roughly 130 thousand) live in an area exposed to level III, where weak shaking and probably no damage is expected. All exposure to shaking was within the borders of Indonesia .

Nearby towns and cities

This earthquake may have been felt in Indonesia . Located 122 kilometer (76 mi) north of the epicenter of this earthquake, Teluknaga (West Java, Indonesia) is the nearest significant population center.

Multiple large cities are in proximity of today's earthquake. Jakarta is located 132 km to the south. Bekasi is located 135 km to the south. Tangerang is located 131 km to the south.

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

Overview of nearby places

Earthquake Intensity Map

The intensity in shaking and damage by this earthquake is illustrated through the map below. The highest intensity measured for this earthquake is III.

I Not felt

II Weak

III Weak

IV Light

V Moderate

VI Strong

VII Very Strong

VIII Severe

IX Violent

X Extreme

Shaking reported by 20 people

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 20 people have reported shaking in 15 places, all within Indonesia.We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.

Places with most reports:

• Jakarta, Jakarta, Indonesia: 3 people.
• Sukabumi, Jawa Barat, Indonesia: 2 people.
• Bogor, Jawa Barat, Indonesia: 2 people.
• Pamulang, Jawa Barat, Indonesia: 2 people.
• Cikeruh, Jawa Barat, Indonesia: 1 person.
• Malang, Jawa Timur, Indonesia: 1 person.
• Lembang, Jawa Barat, Indonesia: 1 person.
• Bantul, Yogyakarta, Indonesia: 1 person.
• Bengkulu, Bengkulu, Indonesia: 1 person.
• Yogyakarta, Yogyakarta, Indonesia: 1 person.

Risk of aftershocks?

This earthquake did not have any significant foreshocks nor aftershocks occurring within 100km (62 mi) of its epicenter.

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.

This is the strongest earthquake in 5 years

Earthquakes of this strength are not so common in the region, but it's not the first time. This is the strongest earthquake to hit since January 14th, 2022, when a 6.6 magnitude earthquake hit 268 km (167 mi) further southwest. That was also the heaviest earthquake to hit the region in the past 10 years.

In total, 2 earthquakes with a magnitude of 6.5 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 5 years.

Small (but not impossible) Tsunami Risk

Tsunami's are usually triggered by shallow earthquakes occurring at a maximum depth of a 100km. Based on early data it appears this earthquake was not shallow. However this was a very strong earthquake with it's epicenter under sea. Stay very cautious and monitor advice from local authorities.

Tsunami Risk Factors

Sources

Last updated 11/10/26 00:38 (). 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 us7000tgrk
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20260911_0000279
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

Share this article: