M5.5 Earthquake 107 km SSW of La Esperanza (El Zapotal), Mexico — October 12, 2020
2020-10-12 04:14:27 UTC (2020-10-12) · approx. 10:14 PM UTC-6 local
On October 12, 2020 at 04:14 UTC, a magnitude 5.5 shallow crustal earthquake struck 107 km SSW of La Esperanza (El Zapotal), Mexico, at a depth of 10.0 km and coordinates 14.5482°, -93.5454°. The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. The nearest populated place is La Esperanza (El Zapotal) (population 1,031).
Physical scale: An earthquake of magnitude 5.5 releases seismic energy equivalent to roughly 3 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 3.8 km — a useful intuition for the size of the slip patch on the fault.
The epicenter is located in Mexico, a region characterized by the Middle America Trench, where the Cocos Plate subducts beneath the North American Plate. The nearest mapped fault system is the Middle America Trench. View all earthquakes in Mexico.
Learn more: Magnitude scale · Aftershock sequences
Nearest Populated Places
ShakeMap — predicted shaking intensity
Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Population exposure (USGS PAGER)
Estimated population that experienced each level of shaking. Based on the USGS PAGER rapid impact assessment, which combines ShakeMap output with global population grids.
| Shaking intensity (MMI) | Description | Population exposed |
|---|---|---|
| MMI 3 | weak | 2,709,714 |
Earthquake Details
-93.5454°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.5 earthquake near La Esperanza (El Zapotal), Mexico?
The magnitude 5.5 earthquake that struck 107 km SSW of La Esperanza (El Zapotal), Mexico on October 12, 2020 at 04:14 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 14.5482°, -93.5454°, which is 107 km SSW of La Esperanza (El Zapotal), Mexico. The nearest populated place is La Esperanza (El Zapotal) (population 1,031). View all earthquakes in Mexico.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.5 earthquakes can continue for days to weeks and gradually diminish over time.
Has Mexico had earthquakes this big before?
The largest recorded earthquake in Mexico was the M8.1 Chiapas earthquake of September 8, 2017. Today's magnitude 5.5 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: us6000c8sb). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, October 12, 2020). M5.5 Earthquake 107 km SSW of La Esperanza (El Zapotal), Mexico — October 12, 2020. Retrieved December 19, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c8sb/