M4.7 Earthquake 69 km NNW of Phôngsali, Laos — November 16, 2021
2021-11-16 05:22:49 UTC (2021-11-16) · approx. 12:22 PM UTC+7 local
On November 16, 2021 at 05:22 UTC, a magnitude 4.7 shallow crustal earthquake struck 69 km NNW of Phôngsali, Laos, at a depth of 10.0 km and coordinates 22.2085°, 101.7446°.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
101.7446°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.7 earthquake near Phôngsali, Laos?
The magnitude 4.7 earthquake that struck 69 km NNW of Phôngsali, Laos on November 16, 2021 at 05:22 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 22.2085°, 101.7446°, which is 69 km NNW of Phôngsali, Laos.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000fuhd). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, November 16, 2021). M4.7 Earthquake 69 km NNW of Phôngsali, Laos — November 16, 2021. Retrieved January 22, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000fuhd/