M4.9 Earthquake 6 km SSW of Coronel Marcelino Maridueña, Ecuador — January 21, 2021
2021-01-21 10:15:34 UTC (2021-01-21) · approx. 5:15 AM UTC-5 local
Felt by 20 people across nearby locations.
On January 21, 2021 at 10:15 UTC, a magnitude 4.9 intermediate depth earthquake struck 6 km SSW of Coronel Marcelino Maridueña, Ecuador, at a depth of 90.2 km and coordinates -2.2666°, -79.4578°.
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.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 20 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-79.4578°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near Coronel Marcelino Maridueña, Ecuador?
The magnitude 4.9 earthquake that struck 6 km SSW of Coronel Marcelino Maridueña, Ecuador on January 21, 2021 at 10:15 UTC had a depth of 90.2 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -2.2666°, -79.4578°, which is 6 km SSW of Coronel Marcelino Maridueña, 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: us7000d1zv). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, January 21, 2021). M4.9 Earthquake 6 km SSW of Coronel Marcelino Maridueña, Ecuador — January 21, 2021. Retrieved March 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000d1zv/