M4.3 Earthquake 48 km NNW of Maumere, Indonesia — September 18, 2021
2021-09-18 21:50:04 UTC (2021-09-18) · approx. 5:50 AM UTC+8 local
On September 18, 2021 at 21:50 UTC, a magnitude 4.3 intermediate depth earthquake struck 48 km NNW of Maumere, Indonesia, at a depth of 206.9 km and coordinates -8.2199°, 122.0265°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
122.0265°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Maumere, Indonesia?
The magnitude 4.3 earthquake that struck 48 km NNW of Maumere, Indonesia on September 18, 2021 at 21:50 UTC had a depth of 206.9 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000fdsi). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, September 18, 2021). M4.3 Earthquake 48 km NNW of Maumere, Indonesia — September 18, 2021. Retrieved December 3, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000fdsi/