4.2

M4.2 Earthquake 66 km WSW of Ternate, IndonesiaJuly 12, 2023

2023-07-12 21:47:23 UTC (2023-07-12) · approx. 5:47 AM UTC+8 local

MagnitudeM4.2(mb)
Time21:47 UTC5:47 AM UTC+8
Depth78.5 kmintermediate depth
Coordinates0.470°, 126.874°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 12, 2023 at 21:47 UTC, a magnitude 4.2 intermediate depth earthquake struck 66 km WSW of Ternate, Indonesia, at a depth of 78.5 km and coordinates 0.4699°, 126.8741°.

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 0.47°, 126.87°

Earthquake Details

Magnitude
4.2 mb
Depth
78.5 km
intermediate depth
Location
0.4699°N
126.8741°E

Technical Information

Event ID
us7000kh2i
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
19
Azimuthal Gap
68.0°
Min Station Distance
0.577°
RMS Residual
0.80 sec
Last Updated
2023-09-16 19:16:23 UTC

Common Questions

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

The magnitude 4.2 earthquake that struck 66 km WSW of Ternate, Indonesia on July 12, 2023 at 21:47 UTC had a depth of 78.5 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: us7000kh2i). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, July 12, 2023). M4.2 Earthquake 66 km WSW of Ternate, IndonesiaJuly 12, 2023. Retrieved September 16, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kh2i/