DashboardNewsSwarmsM 7.0+
VolcanoesSupervolcanoesRegionsGlobal
Favorites
BlogAbout
Privacy PolicyDisclaimer
Follow
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:
32 km SSW of Hawthorne, Nevada
Period:
4 Aug 2016 14:00:41 - 9 Aug 2016 21:23:11 (5 days 7 hours 22 minutes)
Volcanoes in 100km radius:
Mono Lake Volcanic Field(38km), Mono-Inyo Craters(56km), Mammoth Mountain(74km)
Earthquakes:
205
31 swarms found nearby.
2001
7 Mar
2 days 6 hours
47 earthquakes
S20010320.1(26.2km)
20 Mar
6 days 14 hours
96 earthquakes
2004
S20040918.1(24.1km)
17 Sep
67 days 17 hours
4783 earthquakes
2006
10 Apr
1 day 8 hours
29 earthquakes
5 May
1 day 14 hours
30 earthquakes
S20060909.2(21.0km)
8 Sep
1 day 5 hours
45 earthquakes
2011
S20110411.1(12.8km)
10 Apr
2 days 6 hours
104 earthquakes
S20110414.1(18.6km)
13 Apr
51 days 10 hours
3166 earthquakes
S20110629.1(17.6km)
28 Jun
10 days 3 hours
300 earthquakes
3 Jul
3 days 20 hours
49 earthquakes
S20110715.1(18.5km)
14 Jul
2 days 14 hours
34 earthquakes
S20110817.1(15.7km)
17 Aug
1 day 17 hours
62 earthquakes
S20110927.1(18.5km)
26 Sep
1 day 17 hours
35 earthquakes
2013
S20130726.1(17.0km)
26 Jul
21 hours
29 earthquakes
2015
S20150505.1(24.8km)
4 May
2 days 22 hours
111 earthquakes
S20150510.1(25.7km)
9 May
2 days 3 hours
35 earthquakes
S20151020.1(20.9km)
20 Oct
1 hours
28 earthquakes
2016
S20160411.1(17.5km)
10 Apr
2 days 12 hours
51 earthquakes
28 Dec
58 days 12 hours
4521 earthquakes
2017
S20170228.1(19.7km)
27 Feb
31 days 8 hours
449 earthquakes
S20170413.1(19.2km)
13 Apr
15 days 23 hours
587 earthquakes
15 Apr
12 hours
83 earthquakes
S20170523.1(19.4km)
22 May
19 days 4 hours
220 earthquakes
S20170721.1(21.2km)
21 Jul
27 days 22 hours
279 earthquakes
8 Oct
3 days 3 hours
371 earthquakes
S20171020.1(28.2km)
19 Oct
2 days 13 hours
33 earthquakes
S20171021.1(13.3km)
20 Oct
2 days 5 hours
61 earthquakes
2018
7 Feb
2 days 14 hours
56 earthquakes
S20181207.1(25.7km)
7 Dec
1 day 2 hours
33 earthquakes
S20181217.1(26.3km)
17 Dec
2 days 9 hours
44 earthquakes
2020
S20200411.1(25.8km)
11 Apr
33 days 8 hours
1019 earthquakes
AI-generated article — for informational and entertainment purposes only. May contain inaccuracies. Full disclaimerFound an error?

Seismic Swarm S20160805.1: Analysis of Activity Near Hawthorne, Nevada

An earthquake swarm designated S20160805.1 occurred 32 km SSW of Hawthorne, Nevada, registering 205 events over 127 hours and 22 minutes from 14:00 on 4 August 2016 to 21:23 on 9 August 2016. This sequence reflects typical swarm behavior in the region, with events clustered in time and space without a dominant mainshock. Analysis of the first 100 events reveals predominantly low-magnitude activity. Initial events on 4 August began with magnitudes between 0.3 and 1.0 at depths of 8–12 km. Activity intensified on 5 August, including a magnitude 2.7 event at 9 km depth and a magnitude 1.7 event at 8 km. Depths remained consistent, averaging around 9–10 km, with occasional shallower occurrences near 4–7 km. On 6 August, notable events reached magnitudes of 2.5, 2.1, 1.6, and 1.4, all at depths of 7–11 km. Negative magnitudes appeared sporadically, indicating microseismicity, while the overall pattern showed a gradual decline in frequency after the peak period. The swarm aligns with historical patterns in the area. Since 2000, 18 swarms have been documented near Hawthorne, with notable clusters in 2011 (7 swarms), 2006 (3 swarms), and 2015 (3 swarms). Earlier episodes occurred in 2001, 2004, and 2013. These recurrent swarms underscore ongoing seismic unrest without progression to larger, damaging earthquakes. The Hawthorne region lies in western Nevada within the Basin and Range Province, where extensional tectonics drive normal faulting along north-trending structures. This setting forms part of the broader Walker Lane belt, accommodating right-lateral shear between the Pacific and North American plates. Crustal extension here produces frequent small earthquakes and occasional swarms, often at depths of 5–15 km, consistent with the observed event distribution. Updated regional monitoring confirms persistent low-level seismicity tied to these faults. Such swarms provide valuable data for understanding stress accumulation in the province. Continued observation supports hazard assessment in this tectonically active zone.

References

SeismoSight internal swarm classification records.
USGS Earthquake Hazards Program regional tectonic summaries.
Nevada Seismological Laboratory historical earthquake database.