4.2

M4.2 Earthquake 248 km SSE of Ambon, Indonesia — July 15, 2020

2020-07-15 20:49:09 UTC (2020-07-15) · approx. 5:49 AM UTC+9 local

MagnitudeM4.2(mb)
Time20:49 UTC≈ 5:49 AM UTC+9
Depth254.4 kmintermediate depth
Coordinates-5.872°, 128.727°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 15, 2020 at 20:49 UTC, a magnitude 4.2 intermediate depth earthquake struck 248 km SSE of Ambon, Indonesia, at a depth of 254.4 km and coordinates -5.8721°, 128.7267°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -5.87°, 128.73°

Earthquake Details

Magnitude
4.2 mb
Depth
254.4 km
intermediate depth
Location
-5.8721°N
128.7267°E

Technical Information

Event ID
us7000at7n
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Azimuthal Gap
108.0°
Min Station Distance
4.575°
RMS Residual
0.71 sec
Last Updated
2020-09-26 16:58:46 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Ambon, Indonesia?

The magnitude 4.2 earthquake that struck 248 km SSE of Ambon, Indonesia on July 15, 2020 at 20:49 UTC had a depth of 254.4 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 4.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000at7n). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, July 15, 2020). M4.2 Earthquake 248 km SSE of Ambon, Indonesia — July 15, 2020. Retrieved September 26, 2020 from https://www.earthquaketracker.org/earthquakes/event/us7000at7n/