The Jiashi cluster is named for Jiashi County of the Xinjiang Autonomous Region of NW China. It is composed mainly of events related to the earthquake sequence in early 1997, including two M5.9 events on January 21 and an M6.1 event on April 11. There were many other moderate-sized events in the sequence, which occurred near the western margin of the Tarim Basin and the border with Kyrgyzstan. As a result this cluster is very rich in arrival time data at far-regional and teleseismic distances.
Number of events: 125
Calibration type: direct calibration using data to 1.2 degrees; hypocentroid calibration level = 2.7 km
Epicentral calibration range: 3 - 5 km
Date range: 19771218 - 20041007
Latitude range: 39.303 - 40.412
Longitude range: 76.735 - 77.884
Depth range: 5.0 - 30.0
Magnitude range: 3.6 - 6.1
