4.5

M4.5 Earthquake 23 km E of Curahuara de Carangas, BoliviaOctober 20, 2023

2023-10-20 18:34:28 UTC (2023-10-20) · approx. 1:34 PM UTC-5 local

MagnitudeM4.5(mb)
Time18:34 UTC1:34 PM UTC-5
Depth208.3 kmintermediate depth
Coordinates-17.903°, -68.217°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 20, 2023 at 18:34 UTC, a magnitude 4.5 intermediate depth earthquake struck 23 km E of Curahuara de Carangas, Bolivia, at a depth of 208.3 km and coordinates -17.9029°, -68.2170°. This earthquake was detected by 19 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -17.90°, -68.22°

Earthquake Details

Magnitude
4.5 mb
Depth
208.3 km
intermediate depth
Location
-17.9029°N
-68.2170°E

Technical Information

Event ID
us6000lgzs
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
19
Azimuthal Gap
78.0°
Min Station Distance
1.243°
RMS Residual
1.01 sec
Last Updated
2023-12-26 21:24:48 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Curahuara de Carangas, Bolivia?

The magnitude 4.5 earthquake that struck 23 km E of Curahuara de Carangas, Bolivia on October 20, 2023 at 18:34 UTC had a depth of 208.3 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -17.9029°, -68.2170°, which is 23 km E of Curahuara de Carangas, Bolivia.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000lgzs). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, October 20, 2023). M4.5 Earthquake 23 km E of Curahuara de Carangas, BoliviaOctober 20, 2023. Retrieved December 26, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000lgzs/