[data-issues] mag 9.5 bogus event in db

Rick Benson rick at iris.washington.edu
Wed Apr 8 12:51:54 PDT 2009

Hello, Philip-
  The IRIS DMC has been aware that these events populate
the catalogs, and a conscious decision was made to leave them
in place and have them altered at the source.
  Thanks for the note, and since you are contacting the ISC, we
will not ask them again.

On Apr 8, 2009, at 11:52 AM, Philip Crotwell wrote:

> Hi
> I suspect you just store what you are given, but thought I would point
> this out just in case. It is very unlikely that this was really a
> magnitude 9.5.
> 1 	2006-10-09 19:06:18.0 	18.974 	121.117 	11 	 9.5 	MS 	ISCCD 	MAN
> I looked at the ISC website and they also have the 9.5 magnitude, so
> your db is correct in that sense. I guess the ISC can argue that MAN
> (whoever that is) contributed it, and so they should publish it. But
> it seems like a little extra care should be given to really large
> magnitudes as people are often interested in the biggest earthquakes.
> As it stands now, the "biggest" earthquake in the database this decade
> is not really a very big earthquake. :(
> The reason I noticed this is that REV picks up on this event and so
> the biggest circle on our map is not real. I am going to manually
> reject this event in REV, so not a big deal for me, but might continue
> be for others.
> I will also send something to the isc.
> thanks,
> Philip
> PS There was a 9.9 in Bolivia in 1999, likely same type of issue.
> 1999-10-14 10:59:35.0 	-16.559 	-62.775 	.1 	 9.9 	MD 	ISCCD 	HDC 	HDC
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Rick Benson
Director of Operations
(206)547-0393 ext. 119(office)
rick at iris.washington.edu

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