4.5

M4.5 Earthquake 68 km ESE of Macas, Ecuador — October 12, 2020

2020-10-12 23:09:27 UTC (2020-10-12) · approx. 6:09 PM UTC-5 local

Felt by 1 person across nearby locations.

MagnitudeM4.5(mb)
Time23:09 UTC≈ 6:09 PM UTC-5
Depth51.7 kmshallow crustal
Coordinates-2.447°, -77.507°
Felt by1DYFI response
Status✓ Reviewed by USGS

On October 12, 2020 at 23:09 UTC, a magnitude 4.5 shallow crustal earthquake struck 68 km ESE of Macas, Ecuador, at a depth of 51.7 km and coordinates -2.4469°, -77.5074°.

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 -2.45°, -77.51°

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 M4.5 earthquake near 68 km ESE of Macas, Ecuador

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

Earthquake Details

Magnitude
4.5 mb
Depth
51.7 km
shallow crustal
Location
-2.4469°N
-77.5074°E
Felt Reports
1
DYFI responses
Community Intensity
3.1
CDI from reports

Technical Information

Event ID
us6000c7vx
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Azimuthal Gap
141.0°
Min Station Distance
1.971°
RMS Residual
0.84 sec
Last Updated
2020-12-19 17:22:49 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Macas, Ecuador?

The magnitude 4.5 earthquake that struck 68 km ESE of Macas, Ecuador on October 12, 2020 at 23:09 UTC had a depth of 51.7 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -2.4469°, -77.5074°, which is 68 km ESE of Macas, Ecuador.

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: us6000c7vx). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, October 12, 2020). M4.5 Earthquake 68 km ESE of Macas, Ecuador — October 12, 2020. Retrieved December 19, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c7vx/