4.8

M4.8 Earthquake near Molucca SeaMay 6, 2023

2023-05-06 19:38:58 UTC (2023-05-06) · approx. 3:38 AM UTC+8 local

MagnitudeM4.8(mb)
Time19:38 UTC3:38 AM UTC+8
Depth53.4 kmshallow crustal
Coordinates2.345°, 126.792°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 6, 2023 at 19:38 UTC, a magnitude 4.8 shallow crustal earthquake struck near Molucca Sea, at a depth of 53.4 km and coordinates 2.3453°, 126.7916°. This earthquake was detected by 61 seismic stations with good location accuracy and was assigned a USGS significance rating of 354, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 2.35°, 126.79°

Earthquake Details

Magnitude
4.8 mb
Depth
53.4 km
shallow crustal
Location
2.3453°N
126.7916°E

Technical Information

Event ID
usd000jl9n
Event Type
earthquake
Status
✓ Reviewed
Significance
354
Stations Used
61
Azimuthal Gap
111.0°
Min Station Distance
1.665°
RMS Residual
0.87 sec
Last Updated
2023-05-06 20:53:05 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near Molucca Sea?

The magnitude 4.8 earthquake that struck near Molucca Sea on May 6, 2023 at 19:38 UTC had a depth of 53.4 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 2.3453°, 126.7916°, which is near Molucca Sea.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: usd000jl9n). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, May 6, 2023). M4.8 Earthquake near Molucca SeaMay 6, 2023. Retrieved May 6, 2023 from https://www.earthquaketracker.org/earthquakes/event/usd000jl9n/