caa a22 4500 47704753X CHVBK 20180405111334.0 cr unu---uuuuu 170330e19960201xx s 000 0 eng 10.1007/BF00876667 doi (NATIONALLICENCE)springer-10.1007/BF00876667 Bent Allison Geophysics Division, Geological Survey of Canada, 1 Observatory Cres, K1A 0Y3, Ottawa, Ont., Canada aut Am improved source mechanism for the 1935 Timiskaming, Quebec earthquake from regional waveforms [Elektronische Daten] [Allison Bent] The Timiskaming earthquake, which occurred near the Quebec-Ontario border at the northwest end of the Western Quebec seismic zone in 1935, is one of the five largest instrumentally recorded southeastern Canadian earthquakes. Previous studies of this earthquake concentrated on modeling teismograms recorded at regional distances, a better constrained focal mechanism is obtained. The waveforms indicate thrust faulting on a moderately dipping northwest striking plane at a depth of 10 km. TheM w of 6.1 determined in this study is in good agreement with previous magnitude estimates (m b 6.1,M s 6.0, andm bLg 6.2-6.3). The focal mechanism is similar to those of many recent small to moderate earthquakes in the region, and the inferred (from theP axis) acting stress of northeast compression is consistent with the overall eastern North American stress field. The "Lake Timiskaming Rift Valley” in which the earthquake occurred, comprises several northwest striking faults consistent with the strike of the 1935 event. Thus, the 1935 earthquake appears to be a result of faulting on the reactivated Timiskaming graben. Birkhäuser Verlag, 1996 P nl waves nationallicence historical earthquake nationallicence Canadian earthquake nationallicence pure and applied geophysics Birkhäuser-Verlag 146/1(1996-02-01), 5-20 0033-4553 146:1<5 1996 146 24 https://doi.org/10.1007/BF00876667 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00876667 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Bent Allison Geophysics Division, Geological Survey of Canada, 1 Observatory Cres, K1A 0Y3, Ottawa, Ont., Canada aut NATIONALLICENCE 773 0- pure and applied geophysics Birkhäuser-Verlag 146/1(1996-02-01), 5-20 0033-4553 146:1<5 1996 146 24 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer