M 6.1 - 11 km W of Trashigang, Bhutan
September 21, 2009 at 08:53:05 UTC
Depth: 14.00 km (Shallow)
Key Takeaway
This strong earthquake (M6.1) occurred 16 years ago near 11 km W of Trashigang, Bhutan, at a depth of 14.00 km (shallow). It was felt by 123 people.
Strong
PAGER Alert
Tsunami
Felt Reports
Event Details
| Magnitude | 6.1 mwb |
| Depth | 14.00 km (Shallow) |
| Location | 27.3320N, 91.4370E |
| Community Intensity | VI (Strong) |
| Mercalli Intensity | VI (Strong) |
| Felt Reports (DYFI) | 123 people |
| Tsunami Warning | No |
| Significance | 650 / 3000 |
| Status | Reviewed |
| Network | us |
| USGS Event Page | View on USGS → |
Frequently Asked Questions
What was the magnitude of this earthquake?
This earthquake had a magnitude of 6.1, classified as "Strong". Strong earthquakes can cause severe damage in areas several tens of miles across.
How deep was this earthquake?
This earthquake occurred at a depth of 14.00 km, classified as "Shallow". Shallow earthquakes tend to cause more damage at the surface because the energy has less distance to travel before reaching buildings and infrastructure.
Where exactly did this earthquake occur?
This earthquake occurred near 11 km W of Trashigang, Bhutan, at coordinates 27.3320N, 91.4370E. The location is determined by analyzing seismic wave arrival times at multiple monitoring stations.
Were there aftershocks associated with this event?
Aftershock data for this specific event can be explored by viewing nearby recent earthquakes listed below on this page. Aftershocks are smaller earthquakes that occur in the same area following a larger event, and they can continue for days, weeks, or even months depending on the original earthquake's magnitude.
What does the magnitude of this earthquake mean in practical terms?
A magnitude 6.1 earthquake is classified as "Strong" — these can cause significant damage in populated areas, particularly to older or poorly constructed buildings.
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Data from the USGS Earthquake Hazards Program (ComCat). QuakeScan is not affiliated with the USGS. Event details may be updated as new data becomes available.