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Note:This page contains AI-generated content for informational and entertainment purposes only. It may contain inaccuracies. Raw event data is from USGS and EMSC. All statistics, lists, and derived information are generated by this site. Full disclaimerFound an error?
Location:
38 km SSE of Goldfield, Nevada
Period:
8 Jul 2001 17:34:31 - 10 Jul 2001 09:29:34 (1 day 15 hours 55 minutes)
Volcanoes in 100km radius:
Ubehebe Craters(49km)
Earthquakes:
29
18 swarms found nearby.
2000
6 Jun
7 days 22 hours
86 earthquakes
2002
2 Dec
1 day 23 hours
37 earthquakes
2006
26 May
4 days 17 hours
173 earthquakes
2007
24 Jan
2 days 15 hours
85 earthquakes
4 Jul
2 days 20 hours
47 earthquakes
2010
3 Jul
1 day 3 hours
38 earthquakes
2011
17 Apr
2 days 12 hours
62 earthquakes
17 Jul
1 day 18 hours
35 earthquakes
2012
17 Dec
7 days 12 hours
440 earthquakes
2015
S20150214.1(28.0km)
14 Feb
9 days 9 hours
434 earthquakes
3 Jun
2 days 10 hours
48 earthquakes
2017
23 Nov
1 day 13 hours
34 earthquakes
2021
4 Oct
4 days 10 hours
69 earthquakes
2024
18 Jun
7 days 14 hours
102 earthquakes
15 Dec
1 day 15 hours
28 earthquakes
22 Dec
2 days 7 hours
49 earthquakes
31 Dec
3 days 8 hours
65 earthquakes
2025
19 Apr
2 days 13 hours
49 earthquakes
AI-generated article — for informational and entertainment purposes only. May contain inaccuracies. Full disclaimerFound an error?

Seismic Swarm S20010709.1: Activity Near Goldfield, Nevada

Seismic swarm S20010709.1 was recorded 38 km south-southeast of Goldfield, Nevada, between 17:34 UTC on 8 July 2001 and 09:29 UTC on 10 July 2001. In 39 hours and 55 minutes, the sequence comprised 29 earthquakes. Magnitudes ranged from 0.8 to 2.2, with the largest event occurring at 09:33 UTC on 9 July. Focal depths were predominantly shallow, between 0 km and 11 km, consistent with upper-crustal faulting in the region.

The temporal distribution showed clustered activity on the evening of 8 July and midday of 9 July, followed by a decline toward the sequence end. Most events exhibited magnitudes between 0.9 and 1.7, indicating low-energy release typical of swarm behavior rather than a mainshock-aftershock pattern. Depths clustered around 5–7 km for many events, suggesting slip on near-surface structures within the Basin and Range extensional regime.

Goldfield lies within the Walker Lane tectonic belt of western Nevada, a zone of distributed right-lateral shear accommodating roughly 20 percent of Pacific–North America plate motion. The area is underlain by Miocene volcanic rocks and older sedimentary units cut by numerous north- to northwest-striking normal and strike-slip faults. Historical mining activity has exposed these structures, but no surface rupture was associated with the 2001 swarm.

Since 1 January 2000, only one swarm has been classified in the Goldfield area prior to S20010709.1, which itself occurred in 2000. This low frequency underscores the episodic nature of swarm activity in this part of the central Walker Lane, where strain is released through brief clusters rather than frequent large earthquakes.

The shallow depths and modest magnitudes recorded during S20010709.1 align with the regional pattern of microseismicity driven by ongoing extension and shear. Continued monitoring remains important for characterizing fault behavior in this sparsely populated but tectonically active portion of Nevada.

References

SeismoSight internal swarm classification records
USGS Earthquake Catalog for Nevada region
Nevada Bureau of Mines and Geology, Walker Lane tectonic summary