4.0

M4.0 Earthquake 100 km W of Ternate, Indonesia — August 2, 2020

2020-08-02 16:52:42 UTC (2020-08-02) · approx. 12:52 AM UTC+8 local

MagnitudeM4.0(mb)
Time16:52 UTC≈ 12:52 AM UTC+8
Depth50.0 kmshallow crustal
Coordinates0.825°, 126.484°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 2, 2020 at 16:52 UTC, a magnitude 4.0 shallow crustal earthquake struck 100 km W of Ternate, Indonesia, at a depth of 50.0 km and coordinates 0.8254°, 126.4837°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 0.83°, 126.48°

Earthquake Details

Magnitude
4.0 mb
Depth
50.0 km
shallow crustal
Location
0.8254°N
126.4837°E

Technical Information

Event ID
us6000bahp
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Azimuthal Gap
66.0°
Min Station Distance
0.884°
RMS Residual
0.70 sec
Last Updated
2020-10-10 17:11:19 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Ternate, Indonesia?

The magnitude 4.0 earthquake that struck 100 km W of Ternate, Indonesia on August 2, 2020 at 16:52 UTC had a depth of 50.0 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 4.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.0 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000bahp). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, August 2, 2020). M4.0 Earthquake 100 km W of Ternate, Indonesia — August 2, 2020. Retrieved October 10, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000bahp/