M5.1 Earthquake 156 km SSW of Tarauacá, Brazil — April 5, 2023
2023-04-05 06:19:29 UTC (2023-04-05) · approx. 1:19 AM UTC-5 local
On April 5, 2023 at 06:19 UTC, a magnitude 5.1 deep-focus earthquake struck 156 km SSW of Tarauacá, Brazil, at a depth of 560.1 km and coordinates -9.4023°, -71.4400°. This earthquake was detected by 128 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 400, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.1 releases seismic energy equivalent to roughly 674 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.0 km — a useful intuition for the size of the slip patch on the fault.

Earthquake Details
-71.4400°E
Technical Information
Common Questions
How strong was the magnitude 5.1 earthquake near Tarauacá, Brazil?
The magnitude 5.1 earthquake that struck 156 km SSW of Tarauacá, Brazil on April 5, 2023 at 06:19 UTC had a depth of 560.1 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at -9.4023°, -71.4400°, which is 156 km SSW of Tarauacá, Brazil.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.1 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000k22u). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, April 5, 2023). M5.1 Earthquake 156 km SSW of Tarauacá, Brazil — April 5, 2023. Retrieved June 13, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000k22u/