Session 8S - Space.
POSTER session, Thursday afternoon, November 14
Exhibit Hall - Concourse Level, Adam's Mark
A comprehensive analysis of various seismoionospheric precursors was carried out. This made it possible to select three main precursor types in ionosphere characterized by location and time of appearance. It is shown that common property of all seismoionospheric precursors is the fact that horizontal dimensions of precursor observations exist within the radius of earthquake epicenter originally defined by Dobrovolsky theory for ground precursor measurement. Our argument is in favor of atmospheric electricity as a possible cause for appearance of seismoionospheric precursors. Supported in part by Tesla Labs, Inc., La Jolla, CA 92038-2946. ^1Permanent address: IZMIRAN, Troitsk, Moscow Region, Russia.