A seismic swarm near Neshkan, Chukotka, northeastern Russia, and implications for the boundary of the Bering plate
A seismic swarm lasting over two years occurred near the village of Neshkan, Chukotka, far northeastern Russia, beginning with a M L , 4.2 (4.1 m b ) earthquake on 9 December 2002. The swarm generated considerable anxiety among the local populace and authorities. Two temporary seismic stations were...
Published in: | Stephan Mueller Special Publication Series |
---|---|
Main Authors: | , , , , |
Format: | Text |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://doi.org/10.5194/smsps-4-261-2009 https://smsps.copernicus.org/articles/4/261/2009/ |
id |
ftcopernicus:oai:publications.copernicus.org:smsps40206 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:smsps40206 2023-05-15T15:54:46+02:00 A seismic swarm near Neshkan, Chukotka, northeastern Russia, and implications for the boundary of the Bering plate Mackey, K. G. Fujita, K. Sedov, B. M. Gounbina, L. V. Kurtkin, S. 2018-01-15 application/pdf https://doi.org/10.5194/smsps-4-261-2009 https://smsps.copernicus.org/articles/4/261/2009/ eng eng doi:10.5194/smsps-4-261-2009 https://smsps.copernicus.org/articles/4/261/2009/ eISSN: 1868-4564 Text 2018 ftcopernicus https://doi.org/10.5194/smsps-4-261-2009 2020-07-20T16:26:35Z A seismic swarm lasting over two years occurred near the village of Neshkan, Chukotka, far northeastern Russia, beginning with a M L , 4.2 (4.1 m b ) earthquake on 9 December 2002. The swarm generated considerable anxiety among the local populace and authorities. Two temporary seismic stations were deployed during the latter part of September 2003, and recorded over 150 events with magnitudes up to 3.0. Eighteen locatable events appear to form a northeast striking linear trend, parallel to other seismicity trends in Chukotka, extending 20 km to the southwest from the village. We interpret this trend as a previously unknown fault. A small pond located ~1 km west of the village drained and some apparent surface deformation was observed over the course of the earthquake sequence. Relocation of historic seismicity in the region shows that a magnitude 6.0 in 1996 may have ruptured an adjacent fault segment. Other, less well located but larger, teleseismic events earlier in the 20th century may also have occurred on or near this fault. The seismicity is consistent a proposed region of transtension along the northern boundary of a Bering plate. Text Chukotka Copernicus Publications: E-Journals Neshkan ENVELOPE(-172.964,-172.964,67.038,67.038) Stephan Mueller Special Publication Series 4 261 271 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
A seismic swarm lasting over two years occurred near the village of Neshkan, Chukotka, far northeastern Russia, beginning with a M L , 4.2 (4.1 m b ) earthquake on 9 December 2002. The swarm generated considerable anxiety among the local populace and authorities. Two temporary seismic stations were deployed during the latter part of September 2003, and recorded over 150 events with magnitudes up to 3.0. Eighteen locatable events appear to form a northeast striking linear trend, parallel to other seismicity trends in Chukotka, extending 20 km to the southwest from the village. We interpret this trend as a previously unknown fault. A small pond located ~1 km west of the village drained and some apparent surface deformation was observed over the course of the earthquake sequence. Relocation of historic seismicity in the region shows that a magnitude 6.0 in 1996 may have ruptured an adjacent fault segment. Other, less well located but larger, teleseismic events earlier in the 20th century may also have occurred on or near this fault. The seismicity is consistent a proposed region of transtension along the northern boundary of a Bering plate. |
format |
Text |
author |
Mackey, K. G. Fujita, K. Sedov, B. M. Gounbina, L. V. Kurtkin, S. |
spellingShingle |
Mackey, K. G. Fujita, K. Sedov, B. M. Gounbina, L. V. Kurtkin, S. A seismic swarm near Neshkan, Chukotka, northeastern Russia, and implications for the boundary of the Bering plate |
author_facet |
Mackey, K. G. Fujita, K. Sedov, B. M. Gounbina, L. V. Kurtkin, S. |
author_sort |
Mackey, K. G. |
title |
A seismic swarm near Neshkan, Chukotka, northeastern Russia, and implications for the boundary of the Bering plate |
title_short |
A seismic swarm near Neshkan, Chukotka, northeastern Russia, and implications for the boundary of the Bering plate |
title_full |
A seismic swarm near Neshkan, Chukotka, northeastern Russia, and implications for the boundary of the Bering plate |
title_fullStr |
A seismic swarm near Neshkan, Chukotka, northeastern Russia, and implications for the boundary of the Bering plate |
title_full_unstemmed |
A seismic swarm near Neshkan, Chukotka, northeastern Russia, and implications for the boundary of the Bering plate |
title_sort |
seismic swarm near neshkan, chukotka, northeastern russia, and implications for the boundary of the bering plate |
publishDate |
2018 |
url |
https://doi.org/10.5194/smsps-4-261-2009 https://smsps.copernicus.org/articles/4/261/2009/ |
long_lat |
ENVELOPE(-172.964,-172.964,67.038,67.038) |
geographic |
Neshkan |
geographic_facet |
Neshkan |
genre |
Chukotka |
genre_facet |
Chukotka |
op_source |
eISSN: 1868-4564 |
op_relation |
doi:10.5194/smsps-4-261-2009 https://smsps.copernicus.org/articles/4/261/2009/ |
op_doi |
https://doi.org/10.5194/smsps-4-261-2009 |
container_title |
Stephan Mueller Special Publication Series |
container_volume |
4 |
container_start_page |
261 |
op_container_end_page |
271 |
_version_ |
1766389999493709824 |