M4.0 Earthquake 45 km NNE of Padangsidempuan, Indonesia — July 18, 2020
2020-07-18 19:33:59 UTC (2020-07-18) · approx. 2:33 AM UTC+7 local
On July 18, 2020 at 19:33 UTC, a magnitude 4.0 intermediate depth earthquake struck 45 km NNE of Padangsidempuan, Indonesia, at a depth of 172.1 km and coordinates 1.7627°, 99.4250°.
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.
Earthquake Details
99.4250°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.0 earthquake near Padangsidempuan, Indonesia?
The magnitude 4.0 earthquake that struck 45 km NNE of Padangsidempuan, Indonesia on July 18, 2020 at 19:33 UTC had a depth of 172.1 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.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000b3dm). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, July 18, 2020). M4.0 Earthquake 45 km NNE of Padangsidempuan, Indonesia — July 18, 2020. Retrieved September 26, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000b3dm/