Information message about the earthquake in Dagestan on November 15, 2001

     On November 15, 2001 sensitive earthquake has happened in Dagestan. It occurred at 12:42 Moscow time (09:42 GMT) and had magnitude 3.8 and intensity in in living sites up to 4-5MSK.
     Parameters of the earthquake have been determined in the Alert Service (AS) of Information Processing Center (IPC) of Geophysical Survey of RAS in Obninsk with station data obtained from digital and analog seismic stations of Russia, countries of CIS and from abroad. Alert message on this earthquake has been delivered in 58 min after registration to the Ministry of Emergency of the Russian Federation (EMERCOM).
     Preliminary summary processing for this event has been done with data from 7 stations, accurate processing – with data from 14 stations. Besides that the processing with use of local velocity cross section of the earth crust has been done with data of Northern Caucasus local stations, including data from local networks of Dagestan and region of Caucasus Mineral Waters.
      Figure 1 presents fragments of records received by IPC from digital stations in a near to real time mode.

Figure 1
 
     IPC GS RAS also has obtained information with parameters of this event from some seismological centers, these data are given in table 1:
Table 1
NN Time in origin h-min-s (GMT) Lat degr. Lon degr. Depth km N s/st Ms/ N mb/ N I0 calc GAP Center
1 09-42-17.80 43 47  10  7  3.80/34.20/35-5.5 IPC GS RAS (accurate)
2 09-43-17.4 43 47  12        IPC GS RAS (From data regional stations Northern Caucasus)
3 09-42-18.