4.9

M4.9 Earthquake 101 km WNW of Candelaria, ArgentinaMay 29, 2023

2023-05-29 15:02:30 UTC (2023-05-29) · approx. 11:02 AM UTC-4 local

Felt by 1 person across nearby locations.

MagnitudeM4.9(mb)
Time15:02 UTC11:02 AM UTC-4
Depth126.8 kmintermediate depth
Coordinates-31.691°, -66.811°
Felt by1DYFI response
Status✓ Reviewed by USGS

On May 29, 2023 at 15:02 UTC, a magnitude 4.9 intermediate depth earthquake struck 101 km WNW of Candelaria, Argentina, at a depth of 126.8 km and coordinates -31.6907°, -66.8113°. This earthquake was detected by 85 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 370, 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.

Map showing earthquake epicenter at -31.69°, -66.81°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.9 earthquake near 101 km WNW of Candelaria, Argentina

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.9 mb
Depth
126.8 km
intermediate depth
Location
-31.6907°N
-66.8113°E
Felt Reports
1
DYFI responses
Community Intensity
2.9
CDI from reports

Technical Information

Event ID
us7000k4sd
Event Type
earthquake
Status
✓ Reviewed
Significance
370
Stations Used
85
Azimuthal Gap
28.0°
Min Station Distance
1.604°
RMS Residual
0.78 sec
Last Updated
2023-08-05 22:07:38 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Candelaria, Argentina?

The magnitude 4.9 earthquake that struck 101 km WNW of Candelaria, Argentina on May 29, 2023 at 15:02 UTC had a depth of 126.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -31.6907°, -66.8113°, which is 101 km WNW of Candelaria, Argentina.

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.

Authoritative source: USGS event page (event ID: us7000k4sd). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, May 29, 2023). M4.9 Earthquake 101 km WNW of Candelaria, ArgentinaMay 29, 2023. Retrieved August 5, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000k4sd/