4.9

M4.9 Earthquake in the Galapagos Triple Junction regionJanuary 12, 2024

2024-01-12 08:01:49 UTC (2024-01-12) · approx. 1:01 AM UTC-7 local

MagnitudeM4.9(mb)
Time08:01 UTC1:01 AM UTC-7
Depth10.0 kmshallow crustal
Coordinates1.384°, -101.197°
Felt byNo felt reports
Status✓ Reviewed by USGS

On January 12, 2024 at 08:01 UTC, a magnitude 4.9 shallow crustal earthquake struck in the Galapagos Triple Junction region, at a depth of 10.0 km and coordinates 1.3840°, -101.1966°. This earthquake was detected by 40 seismic stations with moderate 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.

Map showing earthquake epicenter at 1.38°, -101.20°

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
1.3840°N
-101.1966°E

Technical Information

Event ID
us6000m39d
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
40
Azimuthal Gap
200.0°
Min Station Distance
16.283°
RMS Residual
0.67 sec
Last Updated
2024-03-16 19:00:27 UTC

Common Questions

How strong was the magnitude 4.9 earthquake in the Galapagos Triple Junction region?

The magnitude 4.9 earthquake that struck in the Galapagos Triple Junction region on January 12, 2024 at 08:01 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 1.3840°, -101.1966°, which is in the Galapagos Triple Junction region.

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: us6000m39d). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, January 12, 2024). M4.9 Earthquake in the Galapagos Triple Junction regionJanuary 12, 2024. Retrieved March 16, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000m39d/