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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:
45 km ESE of Beatty, Nevada
Period:
25 May 2002 11:46:41 - 6 Jun 2002 14:15:39 (12 days 2 hours 28 minutes)
Volcanoes in 100km radius:
None
Earthquakes:
136
48 swarms found nearby.
2000
S20000510.1(12.8km)
9 May
3 days 11 hours
40 earthquakes
S20000523.1(28.7km)
22 May
1 day 10 hours
40 earthquakes
9 Sep
5 days 12 hours
111 earthquakes
S20001020.1(15.1km)
19 Oct
2 days 19 hours
98 earthquakes
S20001122.1(26.2km)
21 Nov
1 day 6 hours
42 earthquakes
2002
3 Jan
3 days 1 hours
61 earthquakes
S20020120.1(23.1km)
19 Jan
7 days 17 hours
99 earthquakes
S20020130.1(23.1km)
29 Jan
1 day 2 hours
27 earthquakes
13 Jun
36 days 2 hours
1659 earthquakes
19 Jul
89 days 17 hours
1357 earthquakes
3 Dec
7 days 15 hours
89 earthquakes
2003
24 May
4 days 16 hours
88 earthquakes
16 Nov
1 day 14 hours
32 earthquakes
2005
18 Oct
4 days 12 hours
59 earthquakes
6 Nov
2 days 19 hours
69 earthquakes
2006
25 Jun
8 days 12 hours
129 earthquakes
2007
23 Jun
1 day 6 hours
40 earthquakes
6 Jul
4 days 3 hours
89 earthquakes
2008
S20080127.2(17.7km)
26 Jan
1 day 14 hours
32 earthquakes
S20080210.1(28.0km)
9 Feb
2 days 7 hours
40 earthquakes
14 May
6 days 3 hours
70 earthquakes
14 Jun
3 days 1 hours
42 earthquakes
21 Sep
9 days 14 hours
133 earthquakes
5 Oct
27 days 12 hours
359 earthquakes
6 Dec
5 days 16 hours
55 earthquakes
2009
8 Jan
3 days 17 hours
48 earthquakes
30 Jun
8 days 13 hours
88 earthquakes
25 Jul
29 days 18 hours
381 earthquakes
4 Dec
2 days 7 hours
34 earthquakes
2010
1 Feb
3 days 5 hours
44 earthquakes
12 Feb
7 days 8 hours
89 earthquakes
3 Jun
1 day 7 hours
32 earthquakes
2012
31 May
5 days 2 hours
101 earthquakes
2014
16 Apr
1 day 19 hours
32 earthquakes
2015
S20150722.1(11.4km)
21 Jul
3 days 19 hours
218 earthquakes
6 Sep
1 day 10 hours
26 earthquakes
16 Oct
2 days 3 hours
47 earthquakes
2016
27 Feb
1 day 4 hours
38 earthquakes
S20161118.1(28.1km)
18 Nov
1 day 10 hours
31 earthquakes
10 Dec
4 days 3 hours
49 earthquakes
S20161218.1(14.6km)
17 Dec
1 day 1 hours
27 earthquakes
2019
S20190424.1(27.5km)
23 Apr
1 day 11 hours
46 earthquakes
2022
16 Jan
2 days 14 hours
49 earthquakes
S20220519.1(23.4km)
18 May
1 day 5 hours
37 earthquakes
2024
18 Jan
8 hours
51 earthquakes
S20240419.1(11.6km)
18 Apr
2 days 16 hours
66 earthquakes
2025
S20250210.1(10.9km)
9 Feb
3 days 18 hours
77 earthquakes
29 Jul
2 days 0 hours
60 earthquakes
AI-generated article — for informational and entertainment purposes only. May contain inaccuracies. Full disclaimerFound an error?

Seismic Swarm S20020526.1: Analysis of Microearthquake Activity Near Beatty, Nevada

Seismic swarm S20020526.1 was recorded beginning at 11:46 on 25 May 2002 and concluding at 14:15 on 6 June 2002. The events were located 45 km ESE of Beatty, Nevada. Over a duration of 290 hours and 28 minutes, a total of 136 earthquakes were registered. This swarm represents one of several documented seismic episodes in the region since 2000.

The study area lies within the Basin and Range Province of southwestern Nevada, where extensional tectonics dominate. Normal faulting along range-bounding structures accommodates regional crustal stretching. Historical seismic data indicate recurrent swarm activity linked to fluid movement within fault zones rather than large mainshock-aftershock sequences. Since 1 January 2000, eight swarms have occurred in the vicinity, with five events recorded in 2000 and three in 2002.

Examination of the first 100 events reveals predominantly low-magnitude activity. Magnitudes ranged from -0.6 to 2.9, with the majority falling below 0.5. Depths clustered between 7 and 10 km, consistent with shallow crustal processes in the area. The initial event at magnitude -0.5 occurred at 2 km depth, followed shortly by a magnitude 2.9 shock at 9 km. Subsequent events maintained shallow focal depths, suggesting brittle failure within the upper crust.

Temporal distribution shows peak activity during the first 48 hours, with events occurring at intervals of minutes to hours. Later phases exhibited longer quiescence periods. Notable larger events included a magnitude 2.3 shock on 26 May at 8 km depth and a magnitude 1.1 event on 28 May at 9 km depth. Negative magnitudes dominated the catalog, reflecting the swarm's microseismic character.

Geological context supports swarm-style seismicity. The Beatty region features Quaternary fault scarps and proximity to volcanic centers associated with the southwestern Nevada volcanic field. Such settings facilitate episodic fluid pressure changes that trigger diffuse earthquake clusters without significant surface rupture.

This swarm aligns with prior regional patterns of low-energy seismic release. Continued monitoring remains essential for understanding long-term strain accumulation in the Basin and Range Province.

References

SeismoSight internal swarm classification database USGS Earthquake Catalog (regional historical data)