M4.9 Earthquake southeast of Easter Island — September 14, 2023
2023-09-14 07:19:49 UTC (2023-09-14) · approx. 12:19 AM UTC-7 local
On September 14, 2023 at 07:19 UTC, a magnitude 4.9 shallow crustal earthquake struck southeast of Easter Island, at a depth of 10.0 km and coordinates -36.3035°, -99.5710°. This earthquake was detected by 64 seismic stations with good location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-99.5710°E
Technical Information
Common Questions
How strong was the magnitude 4.9 earthquake southeast of Easter Island?
The magnitude 4.9 earthquake that struck southeast of Easter Island on September 14, 2023 at 07:19 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 -36.3035°, -99.5710°, which is southeast of Easter Island.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000kvnr). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, September 14, 2023). M4.9 Earthquake southeast of Easter Island — September 14, 2023. Retrieved November 18, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kvnr/