4.4

M4.4 Earthquake 155 km W of Pariaman, Indonesia — October 15, 2020

2020-10-15 16:52:41 UTC (2020-10-15) · approx. 11:52 PM UTC+7 local

MagnitudeM4.4(mb)
Time16:52 UTC≈ 11:52 PM UTC+7
Depth38.3 kmshallow crustal
Coordinates-0.472°, 98.733°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 15, 2020 at 16:52 UTC, a magnitude 4.4 shallow crustal earthquake struck 155 km W of Pariaman, Indonesia, at a depth of 38.3 km and coordinates -0.4717°, 98.7326°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -0.47°, 98.73°

Earthquake Details

Magnitude
4.4 mb
Depth
38.3 km
shallow crustal
Location
-0.4717°N
98.7326°E

Technical Information

Event ID
us6000c8k2
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Azimuthal Gap
147.0°
Min Station Distance
2.109°
RMS Residual
0.89 sec
Last Updated
2020-12-29 23:07:24 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Pariaman, Indonesia?

The magnitude 4.4 earthquake that struck 155 km W of Pariaman, Indonesia on October 15, 2020 at 16:52 UTC had a depth of 38.3 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 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000c8k2). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, October 15, 2020). M4.4 Earthquake 155 km W of Pariaman, Indonesia — October 15, 2020. Retrieved December 29, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c8k2/