A shallow and significant M5.2 earthquake struck in the Indian Ocean 66 kilometer from Purwokerto, Indonesia around noon of Friday September 4th, 2026.
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Earthquake Summary
This earthquake hit under water in the Indian Ocean, 31 kilometers (19 mi) off the coast of Indonesia, 66 kilometer south of Purwokerto in Central Java. 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: | Sep 4, 2026 12:04 (Jakarta Time) - Sep 4, 2026 05:04 Universal Time. |
|---|---|
| Location: | 66 km south of Purwokerto, Central Java, Indonesia. Coordinates 7°59'12"S 109°2'27"E. |
| Map: |  Map of area around epicenter. Click to open in Google Maps. |
| Magnitude: | MAG 5.2 Detected by 95 stations. Maximum Error Range ±0.059 . |
| 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 Indonesia . The closest significant population center near the earthquake is Kroya in Central Java, Indonesia. Kroya is located 45 kilometer (28 mi) southwest of the epicenter.
Major cities near this earthquake: Bandung is located 197 km to the northwest. Semarang is located 188 km to the north-east. Bekasi is located 299 km to the northwest.
An overview of nearby towns and cities is available in the overview below.
Overview of nearby places
| Distance | Place |
|---|---|
| 45 km (28 mi) NE from epicenter |
Kroya Central Java, Indonesia. |
| 52 km (32 mi) N from epicenter |
Wangon Central Java, Indonesia. |
| 59 km (37 mi) NE from epicenter |
Banyumas Central Java, Indonesia. |
| 62 km (39 mi) NW from epicenter |
Sidareja Central Java, Indonesia. |
| 65 km (40 mi) NE from epicenter |
Sokaraja Central Java, Indonesia. |
| 66 km (41 mi) N from epicenter |
Purwokerto Central Java, Indonesia. |
| 67 km (42 mi) NE from epicenter |
Gombong Central Java, Indonesia. |
| 75 km (47 mi) NE from epicenter |
Purbalingga Central Java, Indonesia. |
| 79 km (49 mi) N from epicenter |
Baturaden Central Java, Indonesia. |
| 82 km (51 mi) N from epicenter |
Majenang Central Java, Indonesia. |
| 99 km (62 mi) N from epicenter |
Margasari Central Java, Indonesia. |
| 106 km (66 mi) NW from epicenter |
Ciamis West Java, Indonesia. |
| 112 km (70 mi) N from epicenter |
Slawi Central Java, Indonesia. |
| 114 km (71 mi) NW from epicenter |
Kawalu West Java, Indonesia. |
| 116 km (72 mi) NW from epicenter |
Tasikmalaya West Java, Indonesia. |
| 117 km (73 mi) N from epicenter |
Adiwerna Central Java, Indonesia. |
| 118 km (73 mi) N from epicenter |
Tarub Central Java, Indonesia. |
| 118 km (73 mi) NE from epicenter |
Wonosobo Central Java, Indonesia. |
| 121 km (75 mi) N from epicenter |
Dukuhturi Central Java, Indonesia. |
| 125 km (78 mi) N from epicenter |
Tegal Central Java, Indonesia. |
| 127 km (79 mi) N from epicenter |
Pemalang Central Java, Indonesia. |
| 128 km (80 mi) NW from epicenter |
Kuningan West Java, Indonesia. |
| 131 km (81 mi) NE from epicenter |
Kedungwuni Central Java, Indonesia. |
| 134 km (83 mi) N from epicenter |
Karangsembung West Java, Indonesia. |
| 139 km (86 mi) N from epicenter |
Astanajapura West Java, Indonesia. |
| 141 km (88 mi) NE from epicenter |
Pekalongan Central Java, Indonesia. |
| 142 km (88 mi) NE from epicenter |
Magelang Central Java, Indonesia. |
| 143 km (89 mi) E from epicenter |
Kasihan Yogyakarta, Indonesia. |
| 147 km (91 mi) E from epicenter |
Yogyakarta Yogyakarta, Indonesia. |
| 150 km (93 mi) NW from epicenter |
Sumber West Java, Indonesia. |
| 152 km (94 mi) N from epicenter |
Cirebon West Java, Indonesia. |
| 154 km (96 mi) NW from epicenter |
Weru West Java, Indonesia. |
| 155 km (96 mi) E from epicenter |
Depok Yogyakarta, Indonesia. |
| 156 km (97 mi) NW from epicenter |
Plumbon West Java, Indonesia. |
| 156 km (97 mi) NW from epicenter |
Majalengka West Java, Indonesia. |
| 157 km (98 mi) NW from epicenter |
Klangenan West Java, Indonesia. |
| 158 km (98 mi) NW from epicenter |
Palimanan West Java, Indonesia. |
| 165 km (103 mi) NW from epicenter |
Arjawinangun West Java, Indonesia. |
| 172 km (107 mi) NW from epicenter |
Paseh West Java, Indonesia. |
| 175 km (109 mi) E from epicenter |
Klaten Central Java, Indonesia. |
| 176 km (109 mi) NW from epicenter |
Sumedang West Java, Indonesia. |
| 176 km (109 mi) NE from epicenter |
Salatiga Central Java, Indonesia. |
| 177 km (110 mi) NE from epicenter |
Ungaran Central Java, Indonesia. |
| 188 km (117 mi) NE from epicenter |
Semarang Central Java, Indonesia. |
| 191 km (119 mi) NW from epicenter |
Banjaran West Java, Indonesia. |
| 197 km (122 mi) NW from epicenter |
Bandung West Java, Indonesia. |
| 199 km (124 mi) NW from epicenter |
Soreang West Java, Indonesia. |
| 203 km (126 mi) E from epicenter |
Surakarta Central Java, Indonesia. |
| 207 km (129 mi) NW from epicenter |
Cimahi West Java, Indonesia. |
| 276 km (171 mi) E from epicenter |
Madiun East Java, Indonesia. |
| 293 km (182 mi) NW from epicenter |
Bogor West Java, Indonesia. |
| 299 km (186 mi) NW from epicenter |
Bekasi West Java, Indonesia. |
Shaking reported by 3 people
People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 3 people have reported shaking in 3 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:
- Kadungora, Jawa Barat, Indonesia: 1 person.
- Banyumas, Jawa Tengah, Indonesia: 1 person.
- Karawang, Jawa Barat, Indonesia: 1 person.
Aftershocks detected
In the days before this main shock, 1 smaller foreshock was detected. Nearby this earthquake a foreshock struck 3 days earlier. It measured a magnitude of 4
Overview of foreshocks and aftershocks
| Classification | Magnitude | When | Where |
|---|---|---|---|
| Foreshock | M 4.0 |
3 days earlier Sep 1, 2026 19:54 (Jakarta Time) | 54 km (33 mi) SE from Main Shock. |
| Main Shock This Earthquake |
M 5.2 |
Sep 4, 2026 12:04 (Jakarta Time) | - |
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.
The chance that a significant earthquake like this one is followed by an even larger earthquake is not so large. On average, scientists estimate a 94% chance that a major earthquake will not be followed by an even larger one. It is still adviced to be aware of this risk
Read: How to Stay Safe during an Earthquake (cdc.gov).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 259 km (161 mi) further east. An even stronger magnitude 6.5 earthquake struck on December 15th, 2017.
In total, 19 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 6 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
| Factor | Under Sea? | MAG-6.5 or stronger? | Shallow depth? |
|---|---|---|---|
| Explanation | Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami. | Under MAG 6.5: Very unlikely to cause a tsunami. MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes. MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's. |
Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor. |
| This Earthquake | This earthquake appears to have struck under the sea. | Not this earthquake. This earthquake had a magnitude of 5.2. Earthquakes of this strength are unlikely to trigger a tsunami. |
This earthquake occurred at a depth of of 10 km (6 mi). Earthquakes this shallow could trigger a tsunami. |
Sources
Last updated 05/09/26 05:08 (). 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.
- US Geographic Society (USGS): Earthquake us7000te82
- European-Mediterranean Seismological Centre (EMSC): Earthquake 20260904_0000056
- Geonames.org: World Cities Database
- Google Maps: Static API
- Earthquakelist.org: Historic Earthquakes Database
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