A shallow and significant MAG-5.1 aftershock struck under land 229 kilometer from Ambon in Indonesia in the morning of Saturday August 1st, 2026.
Felt the earthquake? Share this article: 
Earthquake Summary
The earthquake struck on land in Indonesia, 229 kilometer (142 mi) east of Ambon in Maluku. 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: | Aug 1, 2026 08:17 (Jayapura Time) - Jul 31, 2026 23:17 Universal Time. |
|---|---|
| Location: | 229 km east of Ambon, Maluku, Indonesia. Coordinates 3°0'10"S 130°7'25"E. |
| Map: |  Map of area around epicenter. Click to open in Google Maps. |
| Magnitude: | MAG 5.1 Detected by 66 stations. Maximum Error Range ±0.07 . |
| Depth: | 10 km (6 mi) A very shallow depth. |
| Tsunami Risk: | Tsunami very unlikely While this was a shallow earthquake in a coastal area, it appears to have occurred under land (1 km from the sea) with a magnitude that is usually not strong enough to cause tsunami's. Always stay cautious - More info here. |
Nearby towns and cities
This earthquake may have been felt in Indonesia . Amahai in Maluku, Indonesia is the nearest significant place from the epicenter. The earthquake occurred 139 kilometer (86 mi) east of Amahai.
Overview of nearby places
| Distance | Place |
|---|---|
| 139 km (86 mi) W from epicenter |
Amahai Maluku, Indonesia. |
| 229 km (142 mi) W from epicenter |
Ambon Maluku, Indonesia. |
| 268 km (167 mi) NE from epicenter |
Sorong West Papua, Indonesia. |
This is likely an aftershock
This earthquake was an aftershock. A larger mag. 5.3 earthquake struck 15 km (9 mi) north in advance of this 5.1 earthquake around 3 hrs earlier.
Overview of foreshocks and aftershocks
| Classification | Magnitude | When | Where |
|---|---|---|---|
| Foreshock | M 2.8 |
3 days earlier Jul 29, 2026 15:26 (Jayapura Time) | 64 km (40 mi) W from Main Shock. |
| Foreshock | M 3.5 |
2 days earlier Jul 29, 2026 19:18 (Jayapura Time) | 13 km (8 mi) NE from Main Shock. |
| Foreshock | M 2.8 |
2 days earlier Jul 29, 2026 19:25 (Jayapura Time) | 22 km (14 mi) NW from Main Shock. |
| Foreshock | M 2.5 |
2 days earlier Jul 29, 2026 21:36 (Jayapura Time) | 40 km (25 mi) SE from Main Shock. |
| Foreshock | M 2.8 |
2 days earlier Jul 30, 2026 10:27 (Jayapura Time) | 77 km (48 mi) W from Main Shock. |
| Foreshock | M 3.7 |
2 days earlier Jul 30, 2026 10:46 (Jayapura Time) | 88 km (55 mi) W from Main Shock. |
| Foreshock | M 4.3 |
1 day earlier Jul 30, 2026 23:23 (Jayapura Time) | 72 km (44 mi) SE from Main Shock. |
| Foreshock | M 3.5 |
9 mins earlier Aug 1, 2026 05:10 (Jayapura Time) | 8 km (5 mi) NE from Main Shock. |
| Main Shock | M 5.3 |
Aug 1, 2026 05:19 (Jayapura Time) | - |
| Aftershock | M 4.6 |
10 mins later Aug 1, 2026 05:29 (Jayapura Time) | 8 km (5 mi) SW from Main Shock. |
| Aftershock | M 3.6 |
21 mins later Aug 1, 2026 05:40 (Jayapura Time) | 10 km (6 mi) NE from Main Shock. |
| Aftershock | M 2.5 |
27 mins later Aug 1, 2026 05:46 (Jayapura Time) | 8 km (5 mi) SW from Main Shock. |
| Aftershock | M 3.5 |
29 mins later Aug 1, 2026 05:48 (Jayapura Time) | 11 km (7 mi) N from Main Shock. |
| Aftershock | M 3.8 |
35 mins later Aug 1, 2026 05:54 (Jayapura Time) | 12 km (8 mi) NE from Main Shock. |
| Aftershock | M 3.2 |
38 mins later Aug 1, 2026 05:57 (Jayapura Time) | 7 km (5 mi) NE from Main Shock. |
| Aftershock | M 4.4 |
51 mins later Aug 1, 2026 06:10 (Jayapura Time) | 6 km (4 mi) SE from Main Shock. |
| Aftershock | M 3.1 |
57 mins later Aug 1, 2026 06:16 (Jayapura Time) | 11 km (7 mi) NE from Main Shock. |
| Aftershock | M 2.7 |
1 hr later Aug 1, 2026 06:30 (Jayapura Time) | 7 km (4 mi) SW from Main Shock. |
| Aftershock | M 4.1 |
1 hr later Aug 1, 2026 06:32 (Jayapura Time) | 14 km (8 mi) NE from Main Shock. |
| Aftershock | M 3.3 |
1 hr later Aug 1, 2026 06:43 (Jayapura Time) | 11 km (7 mi) NE from Main Shock. |
| Aftershock | M 3.5 |
1 hr later Aug 1, 2026 06:46 (Jayapura Time) | 18 km (11 mi) NE from Main Shock. |
| Aftershock | M 3.2 |
2 hrs later Aug 1, 2026 06:56 (Jayapura Time) | 11 km (7 mi) NE from Main Shock. |
| Aftershock | M 3.7 |
2 hrs later Aug 1, 2026 07:02 (Jayapura Time) | 12 km (7 mi) NE from Main Shock. |
| Aftershock | M 2.6 |
2 hrs later Aug 1, 2026 07:12 (Jayapura Time) | 20 km (12 mi) SE from Main Shock. |
| Aftershock | M 3.8 |
2 hrs later Aug 1, 2026 07:18 (Jayapura Time) | 15 km (10 mi) NE from Main Shock. |
| Aftershock | M 3.5 |
3 hrs later Aug 1, 2026 08:14 (Jayapura Time) | 9 km (6 mi) N from Main Shock. |
| Aftershock | M 5.1 |
3 hrs later Aug 1, 2026 08:15 (Jayapura Time) | 15 km (9 mi) E from Main Shock. |
| Aftershock This Earthquake |
M 5.1 |
3 hrs later Aug 1, 2026 08:17 (Jayapura Time) | 15 km (9 mi) S from Main Shock. |
| Aftershock | M 3.1 |
3 hrs later Aug 1, 2026 08:28 (Jayapura Time) | 11 km (7 mi) NE from Main Shock. |
| Aftershock | M 3.0 |
3 hrs later Aug 1, 2026 08:30 (Jayapura Time) | 3 km (1.9 mi) E from Main Shock. |
| Aftershock | M 2.9 |
3 hrs later Aug 1, 2026 08:41 (Jayapura Time) | 5 km (3 mi) NE from Main Shock. |
| Aftershock | M 2.9 |
3 hrs later Aug 1, 2026 08:46 (Jayapura Time) | 9 km (6 mi) SW from Main Shock. |
| Aftershock | M 2.7 |
4 hrs later Aug 1, 2026 08:54 (Jayapura Time) | 6 km (4 mi) E from Main Shock. |
| Aftershock | M 2.8 |
4 hrs later Aug 1, 2026 08:57 (Jayapura Time) | 4 km (2.2 mi) S from Main Shock. |
| Aftershock | M 2.6 |
4 hrs later Aug 1, 2026 09:42 (Jayapura Time) | 4 km (2.5 mi) E from Main Shock. |
| Aftershock | M 2.7 |
5 hrs later Aug 1, 2026 09:52 (Jayapura Time) | 21 km (13 mi) W from Main Shock. |
| Aftershock | M 2.7 |
5 hrs later Aug 1, 2026 10:37 (Jayapura Time) | 6 km (4 mi) NE from Main Shock. |
| Aftershock | M 2.9 |
6 hrs later Aug 1, 2026 10:50 (Jayapura Time) | 2.9 km (1.8 mi) SW from Main Shock. |
| Aftershock | M 2.8 |
6 hrs later Aug 1, 2026 11:30 (Jayapura Time) | 11 km (7 mi) E from Main Shock. |
| Aftershock | M 2.8 |
7 hrs later Aug 1, 2026 12:25 (Jayapura Time) | 19 km (11 mi) E from Main Shock. |
| Aftershock | M 2.8 |
7 hrs later Aug 1, 2026 12:35 (Jayapura Time) | 9 km (5 mi) NE from Main Shock. |
| Aftershock | M 3.4 |
8 hrs later Aug 1, 2026 13:11 (Jayapura Time) | 31 km (19 mi) SE from Main Shock. |
| Aftershock | M 2.7 |
10 hrs later Aug 1, 2026 14:55 (Jayapura Time) | 11 km (7 mi) NE from Main Shock. |
| Aftershock | M 3.0 |
11 hrs later Aug 1, 2026 16:39 (Jayapura Time) | 19 km (12 mi) E from Main Shock. |
| Aftershock | M 2.5 |
13 hrs later Aug 1, 2026 18:05 (Jayapura Time) | 8 km (5 mi) SW from Main Shock. |
| Aftershock | M 3.7 |
13 hrs later Aug 1, 2026 18:14 (Jayapura Time) | 10 km (6 mi) SE from Main Shock. |
| Aftershock | M 2.7 |
13 hrs later Aug 1, 2026 18:35 (Jayapura Time) | 12 km (7 mi) E from Main Shock. |
| Aftershock | M 2.8 |
14 hrs later Aug 1, 2026 19:06 (Jayapura Time) | 10 km (6 mi) E from Main Shock. |
| Aftershock | M 3.1 |
15 hrs later Aug 1, 2026 20:06 (Jayapura Time) | 19 km (12 mi) SE from Main Shock. |
| Aftershock | M 4.0 |
16 hrs later Aug 1, 2026 21:30 (Jayapura Time) | 84 km (52 mi) SE from Main Shock. |
| Aftershock | M 2.5 |
17 hrs later Aug 1, 2026 22:45 (Jayapura Time) | 9 km (5 mi) S from Main Shock. |
| Aftershock | M 2.6 |
20 hrs later Aug 2, 2026 01:09 (Jayapura Time) | 19 km (12 mi) E from Main Shock. |
| Aftershock | M 2.8 |
1 day later Aug 2, 2026 07:02 (Jayapura Time) | 15 km (9 mi) NE from Main Shock. |
| Aftershock | M 2.7 |
1 day later Aug 2, 2026 07:10 (Jayapura Time) | 12 km (8 mi) NE from Main Shock. |
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.
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. In total, 51 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.
Tsunami very unlikely
DISCLAIMER: We strongly suggest to closely monitor advice from local authorities with regards to tsunami risks. Our analysis is based on automatically collected data from external sources, and these might contain mistakes. In addition, earthquakes can cause landslides that may lead to a tsunami, or be a followed by another, potentially stonger, earthquake.
While MAG-6.5+ earthquakes may cause tsunami's, it appears that the epicenter of this earthquake hit under land. In addition, the reported depth is deeper than 100km, making the risk of a tsunami even less likely. However always 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 on land near a coastal area (1 km from the sea). | Not this earthquake. This earthquake had a magnitude of 5.1. 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 01/08/26 23:18 (). 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.
- US Geographic Society (USGS): Earthquake us6000thcs
- European-Mediterranean Seismological Centre (EMSC): Earthquake 20260731_0000356
- Geonames.org: World Cities Database
- Google Maps: Static API
- Earthquakelist.org: Historic Earthquakes Database
Share this article:
