one explanation
Posted by John Vidale on May 30, 2008 at 19:08:41:

big events make it hard to identify subsequent events. Network sensitivity is known to decrease for a while when the reverberations of the initial event are still blinding the seismometers.

Follow Ups:
     ● Re: one explanation - Roger Hunter  19:25:18 - 5/30/2008  (73926)  (1)
        ● Re: one explanation - Roger Hunter  22:30:07 - 5/30/2008  (73927)  (1)
           ● odd - John Vidale  07:02:49 - 5/31/2008  (73928)  (1)
              ● Re: odd - Roger Hunter  07:42:17 - 5/31/2008  (73929)  (1)
                 ● need a baseline to spot an anomaly - John Vidale  09:25:40 - 5/31/2008  (73930)  (1)
                    ● Re: need a baseline to spot an anomaly - Roger Hunter  11:01:03 - 5/31/2008  (73932)  (0)