GRAVITY EFFECTS CAUSED BY MODERATE EARTHQUAKES: ROLE OF LOCAL FAULT PATTERN
O.V. Lunina, Ya.B. Radziminovich, A.S. Gladkov
Institute of the Earth's Crust, Siberian Branch of the RAS, 128 ul. Lermontova, Irkutsk, 664033, Russia
Keywords: Rockfall; fault; earthquake; intensity
Pages: 610-613
Abstract
A rockfall was discovered on the left bank of the Verkhnyaya Angara River, 25 km away from the northwestern doorway of the North Muya tunnel of the Baikal-Amur Railway. We investigate the tectonic position of the rockfall and its linkage to a moderate earthquake using structural data and show that earthquakes of this intensity can produce notable ground failure if the local fault pattern is favorable for passage of seismic waves.
|
