M4.6 Earthquake 89km SE of Estacion Coahuila, B.C., MX — July 16, 2023
2023-07-16 19:16:05 UTC (2023-07-16) · approx. 11:16 AM UTC-8 local
Felt by 15 people across nearby locations. Maximum shaking intensity MMI 4.6 (moderate).
On July 16, 2023 at 19:16 UTC, a magnitude 4.6 shallow crustal earthquake struck 89km SE of Estacion Coahuila, B.C., MX, at a depth of 6.0 km and coordinates 31.5663°, -114.4147°. The earthquake was reported felt by 15 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 4.6 (moderate). The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. This earthquake was detected by 14 seismic stations with good location accuracy and was assigned a USGS significance rating of 328, placing it among routine seismic activity. The nearest populated place is Ejido Doctor Alberto Oviedo Mota (El Indiviso) (population 1,009).
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 108 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 858 m — a useful intuition for the size of the slip patch on the fault.
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
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 15 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
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 | 244,013 |
| MMI 4 | light | 1,903 |
Earthquake Details
-114.4147°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake near Estacion Coahuila, B.C., MX?
The magnitude 4.6 earthquake that struck 89km SE of Estacion Coahuila, B.C., MX on July 16, 2023 at 19:16 UTC had a depth of 6.0 km. It was felt by 15 people with maximum shaking intensity of MMI 4.6 (moderate). For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 31.5663°, -114.4147°, which is 89km SE of Estacion Coahuila, B.C., MX. The nearest populated place is Ejido Doctor Alberto Oviedo Mota (El Indiviso) (population 1,009).
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: ci39614322). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, July 16, 2023). M4.6 Earthquake 89km SE of Estacion Coahuila, B.C., MX — July 16, 2023. Retrieved September 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/ci39614322/