1998 OCT24 Wagoner County, Oklahoma Earthquake

Origin time 03:48:08.08 UTC/GMT, Latitude 35.933degrees N, Longitude 95.475degrees W

Depth 13.0 km, Magnitude(s): MDUR 1.9

BROAD BAND VERTICAL SEISMOGRAM OF THE 1998 OCT25 OKLAHOMA EARTHQUAKEjl

This earthquake was the first known earthquake in Wagoner County, Oklahoma.
After this quake only five other Oklahoma Counties have no known earthquake.

A magnitude 1.9 earthquake is usually not felt, or is occasionally felt
at one or two houses at the epicenter. Thanks to Ms. Penny Quinelli and
Mr. Rick Hendricks of The Wagoner Tribune, we know that this was felt 
widely in Wagoner and in Whitehorn Cove and Snug Harbor. One report
of a red flash in the sky at the time of the earthquake suggests the
Earthquake Light phenomena, usually reported only during large destructive
earthquakes.

The date and time of this earthquake was 1998 OCT24 10:48PM CST (the local
time), but it will be cataloged by it's Greenwich Mean Time (UTC) and date:
1998 OCT25 03:48:08.45.

The above seismogram is vertical earth acceleration recorded at 40 Samples
per second from a Geotech BB-13 seismometer on the pier in the walk-in
vault near Leonard.

To help OGS map the felt effects of this earthquake, would anyone who
felt and/or heard the earthquake at 10:48PM OCT24 please write to us?

Please tell us where you were, and what you experienced in as much detail
as possible. Mail to:

Oklahoma Geological Survey
Box 8
Leonard, OK 74043

or to:

Earthquake
Leonard, OK 74043

or E-mail to:

jimlawson@okgeosurvey1.gov (You can't mail directly from this web page).


Felt effects reported as of 1998 NOV06: Wagoner MMIV felt by many,
10 miles W of Wagoner MMIII, 8 miles N of Wagoner MMIV, one mile
S of Rocky Point F, Whitehorn Cove F, Snug Harbor F
(MM followed by a Roman numeral is intensity on the Modified Mercalli
scale, F means felt but without enough details to estimate MM intensity)

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