M6.6 earthquake 53 km N of Ziro, India
A magnitude 6.6 earthquake struck 53 km N of Ziro, India on Thu, Oct 22, 1964, 4:39 AM GMT+5:30 (23:09 UTC), 25 km (16 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.6 (mw), strong
- Local time
- UTC
- 1964-10-21 23:09:19 UTC
- Depth
- 25.0 km (15.5 mi), shallow
- Epicenter
- 28.077° N, 93.815° E
- Region
- India
- Strongest shaking
- VII, very strong shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- VII, very strong shaking
- Peak ground acceleration
- 23.9% of gravity
- Peak ground velocity
- 3.3 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.30
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem863756. Read Thu, Sep 24, 2026, 6:56 AM UTC.