28:
51:
58:
35:
816:
871:
369:
861:
635:
387:
163:
27:
506:
846:
478:
856:
699:
841:
851:
729:
436:
273:. This is one of the most significant earthquakes in Canada during the 20th century. The earthquakes had a long succession of
50:
719:
222:
836:
628:
826:
85:
435:
Wetmiller, R. J.; Horner, R. B.; Hasegawa, H. S.; North, R. G.; Lamontagne, M.; Weichert, D. H.; Evans, S. G. (1988),
866:
831:
499:
277:
and jolts. The earthquakes amazed both the general public and the earth science community and have been felt in the
724:
694:
99:
770:
366:
811:
775:
678:
621:
785:
644:
311:
492:
331:
780:
714:
704:
568:
521:
518:
515:
306:
709:
673:
658:
547:
74:
138:
821:
765:
580:
538:
384:
739:
668:
663:
806:
532:
409:
198:
104:
760:
744:
553:
339:
270:
559:
474:
266:
91:
8:
269:, Canada. The largest of these earthquakes occurred on December 23, reaching 6.9 on the
448:
424:
367:
Natural
Resources Canada: Rock and Roll in the N.W.T.: The 1985 Nahanni Earthquakes
290:
391:
373:
800:
178:
165:
428:
286:
484:
613:
274:
258:
282:
262:
294:
208:
385:
Natural
Resources of Canada: Significant Earthquakes in Canada
278:
434:
470:
601:
indicates earthquake resulting in at least 30 deaths
798:
441:Bulletin of the Seismological Society of America
417:Bulletin of the Seismological Society of America
57:
34:
817:Natural disasters in the Northwest Territories
606:indicates the deadliest earthquake of the year
629:
500:
437:"An analysis of the 1985 Nahanni earthquakes"
410:"Spectral scaling of the Nahanni earthquakes"
407:
872:1985 natural disasters in the United States
514:
862:Earthquake clusters, swarms, and sequences
636:
622:
507:
493:
643:
257:is the name for a continuous sequence of
139:
332:"M 6.9 - Northwest Territories, Canada"
799:
617:
488:
362:
360:
358:
356:
847:Natural history of British Columbia
408:Boore, D.; Atkinson, G. M. (1989),
324:
13:
471:International Seismological Centre
14:
883:
857:1985 in the Northwest Territories
463:
353:
42:Show map of Northwest Territories
56:
49:
33:
26:
842:Natural history of Saskatchewan
215:
852:December 1985 events in Canada
378:
1:
317:
312:List of earthquakes in Canada
730:1949 Queen Charlotte Islands
447:(2): 590â616, archived from
7:
307:List of earthquakes in 1985
300:
114:December 22, 1985
10:
888:
837:Natural history of Alberta
700:1925 CharlevoixâKamouraska
261:that began in 1985 in the
827:Natural history of Alaska
753:
687:
651:
596:
528:
243:
235:
214:
204:
194:
157:
153:6.0 km (3.7 mi)
149:
133:
125:
110:
97:
84:
73:
21:
867:1985 disasters in Canada
832:Natural history of Yukon
255:1985 Nahanni earthquakes
17:1985 Nahanni earthquakes
429:10.1785/BSSA0790061736
340:U.S. Geological Survey
271:moment magnitude scale
812:Earthquakes in Canada
725:1946 Vancouver Island
720:1944 CornwallâMassena
695:1918 Vancouver Island
645:Earthquakes in Canada
267:Northwest Territories
571:(8.1, September 19)
776:2010 Central Canada
679:1872 North Cascades
519:Earthquakes in 1985
336:earthquake.usgs.gov
293:, and southeastern
175: /
80:1985-12-23 05:16:05
18:
589:(6.9, December 23)
479:authoritative data
390:2008-10-13 at the
372:2009-02-10 at the
65:Show map of Canada
16:
794:
793:
611:
610:
583:(5.8, October 13)
562:(7.4, August 23)
535:(6.2, January 26)
251:
250:
879:
822:1985 earthquakes
781:2012 Haida Gwaii
715:1935 Timiskaming
705:1929 Grand Banks
638:
631:
624:
615:
614:
509:
502:
495:
486:
485:
458:
457:
456:
431:
423:(6): 1736â1761,
414:
394:
382:
376:
364:
351:
350:
348:
346:
328:
291:British Columbia
231:
229:
217:
190:
189:
187:
186:
185:
180:
179:61.51°N 125.29°W
176:
173:
172:
171:
168:
144:
121:
119:
66:
60:
59:
53:
43:
37:
36:
30:
19:
15:
887:
886:
882:
881:
880:
878:
877:
876:
797:
796:
795:
790:
771:2007â2008 Nazko
749:
710:1933 Baffin Bay
683:
674:1870 Charlevoix
659:1663 Charlevoix
647:
642:
612:
607:
602:
592:
556:(6.3, April 18)
541:(8.0, March 3)
524:
513:
481:for this event.
466:
461:
454:
452:
412:
398:
397:
392:Wayback Machine
383:
379:
374:Wayback Machine
365:
354:
344:
342:
330:
329:
325:
320:
303:
223:
221:
183:
181:
177:
174:
169:
166:
164:
162:
161:
143:
126:Local time
117:
115:
111:Local date
69:
68:
67:
64:
63:
62:
61:
45:
44:
41:
40:
39:
38:
12:
11:
5:
885:
875:
874:
869:
864:
859:
854:
849:
844:
839:
834:
829:
824:
819:
814:
809:
807:1985 in Canada
792:
791:
789:
788:
783:
778:
773:
768:
766:2001 Nisqually
763:
757:
755:
751:
750:
748:
747:
742:
737:
732:
727:
722:
717:
712:
707:
702:
697:
691:
689:
685:
684:
682:
681:
676:
671:
666:
661:
655:
653:
649:
648:
641:
640:
633:
626:
618:
609:
608:
597:
594:
593:
591:
590:
584:
578:
566:
557:
551:
550:(7.5, April 8)
545:
536:
529:
526:
525:
512:
511:
504:
497:
489:
483:
482:
465:
464:External links
462:
460:
459:
432:
404:
396:
395:
377:
352:
322:
321:
319:
316:
315:
314:
309:
302:
299:
265:region of the
249:
248:
245:
241:
240:
237:
233:
232:
219:
212:
211:
206:
205:Areas affected
202:
201:
196:
192:
191:
184:61.51; -125.29
159:
155:
154:
151:
147:
146:
141:
135:
131:
130:
127:
123:
122:
112:
108:
107:
102:
95:
94:
89:
82:
81:
78:
71:
70:
55:
54:
48:
47:
46:
32:
31:
25:
24:
23:
22:
9:
6:
4:
3:
2:
884:
873:
870:
868:
865:
863:
860:
858:
855:
853:
850:
848:
845:
843:
840:
838:
835:
833:
830:
828:
825:
823:
820:
818:
815:
813:
810:
808:
805:
804:
802:
787:
784:
782:
779:
777:
774:
772:
769:
767:
764:
762:
759:
758:
756:
752:
746:
743:
741:
740:1988 Saguenay
738:
736:
733:
731:
728:
726:
723:
721:
718:
716:
713:
711:
708:
706:
703:
701:
698:
696:
693:
692:
690:
686:
680:
677:
675:
672:
670:
669:1732 Montreal
667:
665:
664:1700 Cascadia
662:
660:
657:
656:
654:
650:
646:
639:
634:
632:
627:
625:
620:
619:
616:
605:
600:
595:
588:
585:
582:
579:
577:
574:
570:
567:
565:
561:
558:
555:
552:
549:
546:
544:
540:
537:
534:
531:
530:
527:
523:
520:
517:
510:
505:
503:
498:
496:
491:
490:
487:
480:
476:
472:
468:
467:
451:on 2015-09-23
450:
446:
442:
438:
433:
430:
426:
422:
418:
411:
406:
405:
403:
402:
393:
389:
386:
381:
375:
371:
368:
363:
361:
359:
357:
341:
337:
333:
327:
323:
313:
310:
308:
305:
304:
298:
296:
292:
288:
284:
280:
276:
272:
268:
264:
260:
256:
246:
242:
238:
234:
230:
227:
220:
213:
210:
207:
203:
200:
197:
193:
188:
160:
156:
152:
148:
145:
136:
132:
128:
124:
113:
109:
106:
103:
101:
96:
93:
90:
87:
83:
79:
76:
72:
52:
29:
20:
754:21st Century
735:1985 Nahanni
734:
688:20th Century
603:
598:
586:
575:
572:
563:
542:
475:bibliography
453:, retrieved
449:the original
444:
440:
420:
416:
400:
399:
380:
343:. Retrieved
335:
326:
287:Saskatchewan
254:
252:
225:
761:2000 Kipawa
745:1989 Ungava
569:Mexico City
275:aftershocks
259:earthquakes
236:Aftershocks
182: /
88: event
801:Categories
786:2013 Craig
652:Historical
548:Rapel Lake
455:2014-04-24
318:References
244:Casualties
118:1985-12-22
77: time
581:Kayrakkum
539:Algarrobo
218:intensity
158:Epicenter
134:Magnitude
388:Archived
370:Archived
301:See also
224:MMI VI (
170:125°17â˛W
129:22:16:05
587:Nahanni
533:Mendoza
477:and/or
401:Sources
345:6 March
283:Alberta
263:Nahanni
199:Reverse
167:61°31â˛N
116: (
554:Luquan
473:has a
295:Alaska
226:Strong
209:Canada
105:ComCat
92:509142
560:Wuqia
413:(PDF)
279:Yukon
150:Depth
98:USGS-
469:The
347:2022
253:The
247:None
239:Yes
216:Max.
195:Type
137:6.9
100:ANSS
425:doi
86:ISC
75:UTC
803::
445:78
443:,
439:,
421:79
419:,
415:,
355:^
338:.
334:.
297:.
289:,
285:,
281:,
637:e
630:t
623:v
604:âĄ
599:â
576:âĄ
573:â
564:â
543:â
522:â
516:â
508:e
501:t
494:v
427::
349:.
228:)
142:w
140:M
120:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.