Page Overview

SOUTHERN INDIA

26 January 01
Origin Time
03 h 16 min 41 sec
Location
23.40N 70.32E
Magnitude
7.7Mw*
Depth
23.6 km

*revised magnitude from USGS

Tectonic setting of this earthquake

Most earthquakes in this region are subduction zone earthquakes. As the oceanic plate subducts beneath the continental plate, large compressive forces build up. Slip along the plate interface manifests as earthquakes.

The animation on the left shows typical fault motion for this region.
(movement is exaggerated)

More fault animations

More about plate movement and boundaries (To USGS)
More about locating earthquakes (To USGS)


Frequency of such earthquakes

The map on the left shows all earthquakes (yellow circles) that have occurred in the region from 1973 to the present with magnitude greater that 5.0. The red star shows the epicenter of this earthquake and the black lines represent plate boundaries (click map to enlarge - new window will open)

Plot showing magnitude-frequency relation of earthquakes
Plot your own map of historic events for a given region

More seismicity maps


Seismic Waves

Arrival Times (UT)*
City Distance Travel Time Arrival Time Phase
Moscow, Russia 40.25 7:34.8 3:24:15.8 P
Nairobi, Kenya 40.78 7:39.1 3:24:20.1 P
Beijing, China 42.08 7:49.8 3:24:30.8 P
Rome, Italy 51.10 9:00.5 3:25:41.5 P
Bergen, Norway 57.61 9:48.0 3:26:29.0 P
London, England 60.00 10:04.6 3:26:45.6 P

*Times provided by the USGS

Earthquakes generate seismic waves which travel through the earth. The map shows the time at which p-waves generated by this earthquake arrived at a few cities world wide. In general, seismic wave amplitudes at any location on earth are dependent on the magnitude of the earthquake and the distance from the earthquake. If the seismic waves are large near an urban center, extensive loss of human life and damage to human property may result. (click map to enlarge - new window will open)

More about seismic waves
More about seismic hazards and mitigation


Back to Seismic Monitor