View source for PNO-II-86-049, on 860711,earth Tremor Measuring 3.7 on Richter Scale Occurred in Dalton,Ga.No Seismic Monitor Alarms Received.No Damage Occurred to Plant.Remote Seismic Monitoring Instruments Being Checked

{{Adams
| number = ML20207J875
| issue date = 07/11/1986
| title = PNO-II-86-049:on 860711,earth Tremor Measuring 3.7 on Richter Scale Occurred in Dalton,Ga.No Seismic Monitor Alarms Received.No Damage Occurred to Plant.Remote Seismic Monitoring Instruments Being Checked
| author name = Carroll R, Cline W
| author affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION II)
| addressee name = 
| addressee affiliation = 
| docket = 05000327, 05000328
| license number = 
| contact person = 
| document report number = PNO-II-86-049, PNO-II-86-49, NUDOCS 8607290278
| document type = PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO,, TEXT-INSPECTION &amp; AUDIT &amp; I&amp;E CIRCULARS
| page count = 1
}}
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July 11, 1986 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE PN0-II-86-49 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance.      The information is as initially received without verifi-cation or evaluation, and is basically all that is known by the Region II staff on this date.
FACILITY: Tennessee Valley Authority                    Licensee Emergency Classification:
Sequoyah Units 1 and 2                        X Notification of Unusual Event Docket Nos. 50-327 and 328                       Alert Soddy-Daisy, Tennessee                           Site Area Emergency General Emergency Not Applicable

==SUBJECT:==
EARTH TREMOR IN PLANT VICINITY TVA declared an unusual event at Sequoyah at 11 a.m. (EDT) today and canceled it five minutes later after being informed by the TVA power system load dispatcher that an earth tremor had occurred 12 miles southeast of Chattanooga, Tennessee.
The tremor measured 3.7 on the Richter scale. Its epicenter was located near Dalton, Giorgia. The Sequoyah site received no seismic monitor alarms, and there was no apparent damage to the plant.
TVA is now checking its remote seismic monitoring instruments to see if any were actuated.
TVA has responded to media inquiries.
The State of Tennessee has been informed.
This PN is issued for information only.

==Contact:==
R. Carroll, 242-5543                                    W. Cline, 242-5535 DISTRIBUTION:                 b           f6 H. Street ///$        MNBB /   PhillipskE/W           Willste      MAIL:
Chairman Palladino E00         NRR           IE       NMSS         ADM:DMB Comm. Roberts          PA                    OIA       RES         D0T: Trans Only Comm. Asselstine      MPA                    AE0D                  Applicable State Comm. Bernthal        ELD Comm. Zech            Air Rights             !NPO-- /015l SECY                       SP                N AC ACRS CA                                              y PDR                        Regions:      //       at    [
Licensee:     ' //tC O (Reactor Licensees)
Applicable Resident Site h {O!36 R OI~-low 0 ,R S '/O'Y2,/ldl~ l0M/6 i
8607290278 860711 PDR   I&E PNO-II-86-049       PDR D l  fc h}}

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