The quick answer is yes, the overlapped, but due to differences in =
distance, the M 4.3 New Mexico event was much stronger on displays in =
the US.  The M 4.8 Peru-Ecuador Border quake was 13 minutes before the =
New Mexico.  It did not show up on my display or the display from =
Tucson, AZ (TUC) or Albuquerque, NM (ANMO).  I did not try special =
filter, but it is possible with the right filtering both events could be =
visible at the same time.  The M 4.8 event was 5182 km from ANMO, while =
the M 4.3 NM event was 341 km from ANMO.  The New Mexico event only =
lasted about 3 minutes here in Tucson before the waves subsided into =
background noise.  The New Mexico could have obscured some of the body =
waves from the M 4.8 event as they arrived, but the surface waves would =
have arrived after the M 4.3 event has subsided.

Bob Hancock
Three Points, AZ
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On Mar 27, 2010, at 7:45 PM, Thomas Dick wrote:

> Wasn't this quake contaminated by the Peru-Ecuador Border quake?
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