4.9

M4.9 Earthquake 11 km ESE of Rocafuerte, EcuadorJuly 22, 2022

2022-07-22 07:57:33 UTC (2022-07-22) · approx. 2:57 AM UTC-5 local

Felt by 11 people across nearby locations.

MagnitudeM4.9(mb)
Time07:57 UTC2:57 AM UTC-5
Depth49.0 kmshallow crustal
Coordinates-0.964°, -80.356°
Felt by11DYFI responses
Status✓ Reviewed by USGS

On July 22, 2022 at 07:57 UTC, a magnitude 4.9 shallow crustal earthquake struck 11 km ESE of Rocafuerte, Ecuador, at a depth of 49.0 km and coordinates -0.9643°, -80.3564°. This earthquake was detected by 68 seismic stations with good location accuracy and was assigned a USGS significance rating of 375, 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 -0.96°, -80.36°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 11 citizen responses 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 11 km ESE of Rocafuerte, Ecuador

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

Earthquake Details

Magnitude
4.9 mb
Depth
49.0 km
shallow crustal
Location
-0.9643°N
-80.3564°E
Felt Reports
11
DYFI responses
Community Intensity
5.2
CDI from reports

Technical Information

Event ID
us7000hslt
Event Type
earthquake
Status
✓ Reviewed
Significance
375
Stations Used
68
Azimuthal Gap
142.0°
Min Station Distance
1.577°
RMS Residual
0.58 sec
Last Updated
2022-09-27 16:57:14 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Rocafuerte, Ecuador?

The magnitude 4.9 earthquake that struck 11 km ESE of Rocafuerte, Ecuador on July 22, 2022 at 07:57 UTC had a depth of 49.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -0.9643°, -80.3564°, which is 11 km ESE of Rocafuerte, Ecuador.

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: us7000hslt). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, July 22, 2022). M4.9 Earthquake 11 km ESE of Rocafuerte, EcuadorJuly 22, 2022. Retrieved September 27, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000hslt/