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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:
29 km SSE of Mina, Nevada
Period:
27 May 2020 20:28:30 - 14 Jun 2020 08:27:59 (17 days 11 hours 59 minutes)
Volcanoes in 100km radius:
Mono Lake Volcanic Field(89km), Mono-Inyo Craters(96km)
Earthquakes:
384
27 swarms found nearby.
2003
S20030529.1(13.9km)
29 May
4 days 7 hours
164 earthquakes
S20031116.1(16.9km)
15 Nov
2 days 1 hours
52 earthquakes
2013
19 Jan
2 days 18 hours
65 earthquakes
S20130213.1(15.8km)
12 Feb
11 days 5 hours
345 earthquakes
2014
S20140516.1(28.7km)
16 May
9 hours
55 earthquakes
2020
S20200318.1(28.1km)
17 Mar
3 days 22 hours
75 earthquakes
S20200515.1(13.1km)
15 May
295 days 1 hours
21711 earthquakes
15 May
32 days 11 hours
1150 earthquakes
15 May
22 hours
26 earthquakes
S20200517.1(25.5km)
16 May
11 days 1 hours
418 earthquakes
14 Jun
31 days 0 hours
472 earthquakes
7 Jul
5 days 6 hours
63 earthquakes
S20200726.1(11.4km)
25 Jul
11 days 0 hours
125 earthquakes
S20201020.3(26.5km)
19 Oct
1 day 23 hours
31 earthquakes
S20201203.1(25.0km)
2 Dec
8 days 6 hours
153 earthquakes
10 Dec
1 day 1 hours
42 earthquakes
S20201220.1(19.4km)
19 Dec
7 days 21 hours
133 earthquakes
2021
1 Jan
16 hours
24 earthquakes
S20210117.2(12.2km)
17 Jan
1 day 7 hours
25 earthquakes
S20210330.1(17.7km)
29 Mar
19 days 16 hours
285 earthquakes
S20210505.1(15.3km)
4 May
16 days 21 hours
229 earthquakes
S20210927.1(14.6km)
26 Sep
2 days 0 hours
31 earthquakes
S20211001.1(12.6km)
30 Sep
6 days 14 hours
87 earthquakes
15 Oct
7 days 7 hours
86 earthquakes
28 Oct
10 days 4 hours
136 earthquakes
2022
S20220105.1(14.9km)
4 Jan
6 days 14 hours
106 earthquakes
S20220123.1(29.2km)
22 Jan
6 days 16 hours
114 earthquakes
AI-generated article — for informational and entertainment purposes only. May contain inaccuracies. Full disclaimerFound an error?

Seismic Swarm S20200528.1: Analysis of Activity Near Mina, Nevada

The region surrounding Mina, Nevada, forms part of the Basin and Range Province, where crustal extension produces normal faulting along north-trending ranges and valleys. This tectonic setting generates frequent small-to-moderate earthquakes. The Mina area lies near the southern margin of the Walker Lane belt, a zone of distributed right-lateral shear that accommodates roughly 20 percent of Pacific-North America plate motion. Active faults mapped in the area include segments of the Benton Spring and Petrified Spring fault systems, which have produced surface-rupturing events in the Holocene.

Seismic swarms have occurred repeatedly in this portion of western Nevada. Records since 2000 document ten distinct swarms, with episodes in 2003 (two swarms), 2013 (two swarms), 2014 (one swarm), and five swarms in 2020. These clusters typically last days to weeks and consist of hundreds of events, most below magnitude 3.0, at depths shallower than 15 km.

Swarm S20200528.1 began at 20:28 UTC on 27 May 2020 and concluded at 08:27 UTC on 14 June 2020, 29 km south-southeast of Mina. Over 419 hours and 59 minutes the sequence produced 384 earthquakes. Examination of the first 100 events shows magnitudes ranging from 0.1 to 3.0 and focal depths between 0 and 15 km, with the majority occurring between 1 and 11 km. The largest events reached magnitude 3.0 on 28 May at 06:28 and again at 20:44. Early activity included several events above magnitude 2.5 within the first 48 hours, followed by a gradual decline in both rate and maximum magnitude while remaining tightly clustered in space and time.

Such swarm behavior is consistent with fluid migration or aseismic slip on favorably oriented faults within the Walker Lane shear zone. No damage or felt reports of significance were associated with this sequence, aligning with the low magnitudes recorded.

References

  • Nevada Seismological Laboratory, University of Nevada, Reno – Regional seismicity summaries
  • U.S. Geological Survey Earthquake Catalog – Event data and fault mapping
  • USGS Professional Paper 1517 – Quaternary faulting in the Basin and Range
  • Faulds, J.E., and Henry, C.D. (2008), Tectonic influences on magmatism and hydrothermal activity, Walker Lane<|eos|>