4.2

M4.2 Earthquake near Pulau-Pulau Sula, IndonesiaJuly 17, 2023

2023-07-17 23:01:42 UTC (2023-07-17) · approx. 7:01 AM UTC+8 local

MagnitudeM4.2(mb)
Time23:01 UTC7:01 AM UTC+8
Depth10.0 kmshallow crustal
Coordinates-1.593°, 126.320°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 17, 2023 at 23:01 UTC, a magnitude 4.2 shallow crustal earthquake struck near Pulau-Pulau Sula, Indonesia, at a depth of 10.0 km and coordinates -1.5935°, 126.3195°.

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 -1.59°, 126.32°

Earthquake Details

Magnitude
4.2 mb
Depth
10.0 km
shallow crustal
Location
-1.5935°N
126.3195°E

Technical Information

Event ID
us7000ki8v
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
12
Azimuthal Gap
80.0°
Min Station Distance
2.572°
RMS Residual
0.41 sec
Last Updated
2023-09-28 21:34:19 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Pulau-Pulau Sula, Indonesia?

The magnitude 4.2 earthquake that struck near Pulau-Pulau Sula, Indonesia on July 17, 2023 at 23:01 UTC had a depth of 10.0 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: us7000ki8v). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, July 17, 2023). M4.2 Earthquake near Pulau-Pulau Sula, IndonesiaJuly 17, 2023. Retrieved September 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000ki8v/