4.4

M4.4 Earthquake 211 km SSE of Ambon, IndonesiaSeptember 15, 2023

2023-09-15 19:51:29 UTC (2023-09-15) · approx. 4:51 AM UTC+9 local

MagnitudeM4.4(mb)
Time19:51 UTC4:51 AM UTC+9
Depth296.6 kmintermediate depth
Coordinates-5.451°, 128.935°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 15, 2023 at 19:51 UTC, a magnitude 4.4 intermediate depth earthquake struck 211 km SSE of Ambon, Indonesia, at a depth of 296.6 km and coordinates -5.4510°, 128.9355°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -5.45°, 128.94°

Earthquake Details

Magnitude
4.4 mb
Depth
296.6 km
intermediate depth
Location
-5.4510°N
128.9355°E

Technical Information

Event ID
us7000kw25
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
85
Azimuthal Gap
50.0°
Min Station Distance
1.335°
RMS Residual
0.70 sec
Last Updated
2023-11-18 22:29:35 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Ambon, Indonesia?

The magnitude 4.4 earthquake that struck 211 km SSE of Ambon, Indonesia on September 15, 2023 at 19:51 UTC had a depth of 296.6 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000kw25). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, September 15, 2023). M4.4 Earthquake 211 km SSE of Ambon, IndonesiaSeptember 15, 2023. Retrieved November 18, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kw25/