Shallow M5.4 Earthquake hit in the Indian Ocean 146km from Yogyakarta (Indonesia) on Tuesday Evening.

Written by Earthquakelist.org on October 27th, 2026. Last updated October 28th, 2026.

A shallow and significant M5.4 earthquake struck in the Indian Ocean 146 kilometer from Yogyakarta, Indonesia in the evening of Tuesday October 27th, 2026. Roughly 40 thousand people may have felt this earthquake.

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Earthquake Summary

This earthquake hit under water in the Indian Ocean, 111 kilometers (69 mi) off the coast of Indonesia, 146 kilometer south of Yogyakarta. 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:	Oct 27, 2026 21:44 (Jakarta Time) - Oct 27, 2026 14:44 Universal Time.
Location:	146 km south of Yogyakarta, Indonesia. Coordinates 9°6'58"S 110°19'50"E.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.4 Detected by 63 stations. Maximum Error Range ±0.073 .
Depth:	10 km (6 mi) A very shallow depth.
Max. Intensity:	IV Light On the Modified Mercalli Scale.
Tsunami Risk:	Low tsunami risk Earthquakes under MAG-6.5 do not usually cause tsunami's. 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 40 thousand people exposed to shaking

This earthquake may have been felt by around 40 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.

The highest earthquake impact level for this earthquake is III, which corresponds with weak shaking and probably no damage. Roughly 42,740 people are expected to be exposed to this level. All exposure to shaking was within the borders of Indonesia .

Nearby towns and cities

This earthquake may have been felt in Indonesia . The closest significant population center near the earthquake is Pundong in Yogyakarta, Indonesia. Pundong is located 129 kilometer (80 mi) south of the epicenter.

Multiple major population centers exist within 300km of the earthquake that struck today. Semarang is located 236 km to the north. Yogyakarta is located 146 km to the north. Surakarta is located 182 km to the north.

A complete list of nearby places is included 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 2 people

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 2 people have reported shaking in 2 places in 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:

• Surakarta, Jawa Tengah, Indonesia: 1 person.
• Palembang, Sumatera Selatan, Indonesia: 1 person.

18 Aftershocks detected

This main shock was followed by 18 smaller aftershocks. Just 41 mins after this main shock, an earthquake measuring MAG-4.1 was detected 9 km (5 mi) south of this earthquake.

This main shock was prefaced by 1 smaller foreshock. Roughly 52 sec before this earthquake, a foreshock measuring MAG-4.9 was detected nearby this earthquake.

Overview of foreshocks and aftershocks

More earthquakes coming?

The risk of aftershocks decreases rapidly over time. Usually, aftershocks are at least one order of magnitude lower than a main shock.

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 February 5th, 2026, when a 5.8 magnitude earthquake hit 102 km (63 mi) further east. An even stronger magnitude 6.5 earthquake struck on December 15th, 2017.

In total, 17 earthquakes with a magnitude of 5.4 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 7 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 28/10/26 08:18 (). As more information on this earthquake becomes available this article will be updated. This article is automatically composed based on data originating from multiple sources.

1. US Geographic Society (USGS): Earthquake us7000ttgf
2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20261027_0000192
3. Geonames.org: World Cities Database
4. Google Maps: Static API
5. Earthquakelist.org: Historic Earthquakes Database

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