Mag. 4.1 earthquake - Banda Sea, 18 km southeast of Pulau Ambon Island, Maluku, Indonesia, on Wednesday, Jun 4, 2025, at 09:29 pm (Jayapura time) - writeAge(1749040188) 4k4fq
Mag. 4.1 earthquake - Banda Sea, 18 km southeast of Pulau Ambon Island, Maluku, Indonesia, on Wednesday, Jun 4, 2025, at 09:29 pm (Jayapura time) - writeAge(1749040188) 4k4fq
A moderate magnitude 4.1 earthquake occurred in the Banda Sea near Pulau Ambon island, Indonesia, in the evening of Wednesday, Jun 4, 2025 at 9.29 pm local time (Asia/Jayapura GMT +9). The quake had a moderate depth of 139 km (86 mi) and was not felt (or at least not reported so). 5o2l3h
Hint: Click on the image to see different maps of this quake!
Moderate magnitude 4.1 earthquake at 139 km depth
4 Jun 12:39 UTC: First to report: BMKG after 9 minutes. 4 Jun 16:11: Magnitude recalculated from 4.0 to 4.1. Hypocenter depth recalculated from 144.00 to 139.00 km (from 89 to 86 mi). Epicenter location corrected by 4.6 km (2.8 mi) towards NNE.
I didn't feel it
I felt this quake
Earthquake details 6j5g8
Date & time
Jun 4, 2025 12:29:48 UTC -
Local time at epicenter
Wednesday, Jun 4, 2025, at 09:29 pm (Asia/Jayapura GMT +9)
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The closest larger town where the quake might have been felt is Indonesia, in 14.1 km (9 mi) distance west of the epicenter. People likely experienced very weak shaking there.
The following table shows some of the places that might have been affected (or not) by the shaking.
Contribute: Leave a comment if you find a particular report interesting or want to add to it. Flag as inappropriate. Mark as helpful or interesting. Send your own report!
Compare Quake Data m424c
Data for the same earthquake as reported by different agencies 6c2i3y
The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag
Depth
Time GMT
2025-06-4
Epicenter
Agency
4.1
139 km
86 mi
12:29:48
Seram, Indonesia
BMKG (Meteorological, Climatological, and Geophysical Agency of Indonesia)
IRIS (Incorporated Research Institutions for Seismology)
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Seismograms 4q6i38
Seismic station: Kappang, Sulawesi, Indonesia (KAPI/II network) | Distance from quake: 960 km / 597 mi | Station Info
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Band filter applied: 0.2-4.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
Seismic station: Darwin High School (AUDHS/S1 network) | Distance from quake: 1011 km / 628 mi | Station Info
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Band filter applied: 0.2-4.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
Seismic station: Kakadu, NT (KDU/AU network) | Distance from quake: 1099 km / 683 mi | Station Info
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Band filter applied: 0.2-4.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
No aftershocks have been recorded so far. When aftershocks are detected, we will update this section.
What are aftershocks? 1z5n3f
Larger earthquakes (above magnitude 5 or so) such as this one are usually followed by smaller ones known as aftershocks that occur in the same area during the days, weeks, months or even years after the main shock.
[More info]
Aftershocks are typically at least one order of magnitude smaller than the main shock. Their size and frequency decreases with time.
What about this quake? 1p6o6g
Based on its magnitude, the fault that was active during the quake likely ruptured beneath a surface area of approximately 1 km2 (0 square miles) as a first-order estimate. The length of the rupture zone thus was probably around 2 km (1 mi).
[More info]
Aftershocks for this quake can be expected to occur during the days following the quake at or near the same fault, at distances of up to approx. two times the length of the rupture zone, or in this case 4 km (2 mi). The often broadly linear arrangement of aftershock epicenters encomes the rupture zone of the main shock (see map below).
Recorded aftershocks, latest first (0 quake) 6c1l3f
Date and Time GMT
Mag
Depth
Distance
Region
Details
Jun 4, 2025 09:29 pm (Jayapura) 6 days ago
4.1
139 km
0 km - This quake
Banda Sea, 18 km SE of Pulau Ambon Island, Maluku, Indonesia
Based on data from the past 25 years and our earthquake archive back to 1900, there are about 246 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):
Mag. 6 or higher: 0.15 quakes per year (or 1 quake every 6.8 years)
Mag. 5 or higher: 1.76 quakes per year
Mag. 4 or higher: 22.3 quakes per year
Mag. 3 or higher: 110 quakes per year (or 9.1 quakes per month)
Mag. 2 or higher: 235 quakes per year (or 19.6 quakes per month)
Mag. 1 or higher: 246 quakes per year (or 20.5 quakes per month)
The area where this quake occurred has a very high level of seismic activity. It has had at least 19 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 5 to 10 years.
Number of quakes per year 6l71o
Previous quakes in the same area of this earthquake 2m1c9
The earthquake occurred 14 weeks after a magnitude 4.4 earthquake had hit on Monday, Feb 24, 2025, at 05:12 pm local time (Asia/Jayapura GMT +9) in 70 km (44 mi) distance to the north:
The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 6.4. It had occurred 6 years earlier, on Thursday, Sep 26, 2019, at 08:46 am local time (Asia/Jayapura GMT +9) in Indonesia:
The strongest-ever (since 1900) recorded quake in this area measured magnitude 8.2. It had occurred 60 years ago earlier, on Sunday, Jan 24, 1965, at 09:11 am local time (Asia/Jayapura GMT +9) in Indonesia:
Below is a list and map of larger or recent quakes that had occurred near the epicenter before this earthquake(within up to 100 km/61 mi distance, up to 300 km/183 mi for very large quakes above mag. 7). Filter and sort the list by magnitude or time.
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Indonesia > Maluku > M4.1 Banda Sea, 18 km SE of Pulau Ambon Island - Jun 4, 2025 12:29 GMT
27.9°C (82 F), humidity: 98%, wind: 2 m/s (3 kts) from S
