M5.5 Earthquake 170 km SE of Khovd, Mongolia — April 26, 2026
2026-04-26 04:23:24 UTC (2026-04-26) · approx. 10:23 AM UTC+6 local
Felt by 2 people across nearby locations. Maximum shaking intensity MMI 6.7 (very strong).
On April 26, 2026 at 04:23 UTC, a magnitude 5.5 shallow crustal earthquake struck 170 km SE of Khovd, Mongolia, at a depth of 11.0 km and coordinates 46.8137°, 93.0533°. The earthquake was reported felt by 2 peopleacross nearby locations, with a maximum shaking intensity of Modified Mercalli Intensity (MMI) 6.7 (very strong). The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. This earthquake was detected by 143 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 466, placing it among routine seismic activity. The nearest populated place is Hovd (population 26,023).
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.
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 2 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 | 99,437 |
| MMI 4 | light | 32,269 |
| MMI 5 | moderate | 5,692 |
| MMI 6 | strong | 490 |
| MMI 7 | very strong | 33 |
Earthquake Details
93.0533°E
Technical Information
Common Questions
How strong was the magnitude 5.5 earthquake near Khovd, Mongolia?
The magnitude 5.5 earthquake that struck 170 km SE of Khovd, Mongolia on April 26, 2026 at 04:23 UTC had a depth of 11.0 km. It was felt by 2 people with maximum shaking intensity of MMI 6.7 (very strong). For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 46.8137°, 93.0533°, which is 170 km SE of Khovd, Mongolia. The nearest populated place is Hovd (population 26,023).
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.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Authoritative source: USGS event page (event ID: us6000ssxt). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, April 26, 2026). M5.5 Earthquake 170 km SE of Khovd, Mongolia — April 26, 2026. Retrieved June 24, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000ssxt/