4.8

M4.8 Earthquake near off the coast of EcuadorJanuary 19, 2023

2023-01-19 17:43:41 UTC (2023-01-19) · approx. 11:43 AM UTC-6 local

MagnitudeM4.8(mb)
Time17:43 UTC11:43 AM UTC-6
Depth10.0 kmshallow crustal
Coordinates1.222°, -85.308°
Felt byNo felt reports
Status✓ Reviewed by USGS

On January 19, 2023 at 17:43 UTC, a magnitude 4.8 shallow crustal earthquake struck near off the coast of Ecuador, at a depth of 10.0 km and coordinates 1.2220°, -85.3077°. This earthquake was detected by 74 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 354, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 1.22°, -85.31°

Earthquake Details

Magnitude
4.8 mb
Depth
10.0 km
shallow crustal
Location
1.2220°N
-85.3077°E

Technical Information

Event ID
us7000j5kj
Event Type
earthquake
Status
✓ Reviewed
Significance
354
Stations Used
74
Azimuthal Gap
75.0°
Min Station Distance
5.323°
RMS Residual
0.98 sec
Last Updated
2023-03-31 19:45:31 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near off the coast of Ecuador?

The magnitude 4.8 earthquake that struck near off the coast of Ecuador on January 19, 2023 at 17:43 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 1.2220°, -85.3077°, which is near off the coast of Ecuador.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000j5kj). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, January 19, 2023). M4.8 Earthquake near off the coast of EcuadorJanuary 19, 2023. Retrieved March 31, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j5kj/