Location:

Period:

30 Apr 2026 11:23:06 - 4 May 2026 16:30:05 (4 days 5 hours 6 minutes)

Volcanoes in 100km radius:

Soda Lakes(31km)

Earthquakes:

5 swarms found nearby.

2002

S20021121.1(13.5km)

21 Nov

1 day 14 hours

30 earthquakes

2024

S20241209.3(16.0km)

9 Dec

20 days 10 hours

729 earthquakes

S20241230.1(16.4km)

30 Dec

18 days 3 hours

232 earthquakes

2026

S20260414.1(5.1km)

14 Apr

13 days 11 hours

403 earthquakes

S20260511.1(0.7km)

10 May

1 day 4 hours

35 earthquakes

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Seismic Swarm S20260501.1: Analysis of Activity Near Silver Springs, Nevada

A seismic swarm designated S20260501.1 occurred southeast of Silver Springs, Nevada, between 11:23 on 30 April 2026 and 16:30 on 4 May 2026. The event sequence lasted 101 hours and 6 minutes and included 85 earthquakes. The epicentral area lies approximately 17 km southeast of Silver Springs in Lyon County.

The swarm began with a magnitude 2.5 event at 9 km depth. Activity remained modest until early 1 May, when a magnitude 4.2 earthquake at 7 km depth was followed within minutes by the largest event of the sequence, a magnitude 5.1 quake at 5 km depth. Subsequent events included multiple shocks between magnitudes 2.5 and 2.9, with depths ranging from 0 km to 15 km. The sequence featured a clear mainshock-aftershock pattern after the 5.1 event, with the majority of later events below magnitude 2.5. The final recorded event was a magnitude 2.4 quake at 7 km depth on 4 May.

This swarm represents the fourth documented swarm in the region since 2000. Earlier episodes occurred in 2002 (one swarm), 2024 (two swarms), and the current 2026 sequence. Such clustered activity is consistent with the broader tectonic setting of western Nevada, where distributed deformation occurs along the Walker Lane belt. This zone accommodates a portion of the Pacific-North America plate boundary motion through right-lateral shear and extension, producing frequent small-to-moderate earthquakes.

The Silver Springs area sits within the Basin and Range province, characterized by north-south trending normal faults and Quaternary volcanic features. Historical seismicity in the region includes both isolated events and occasional swarm-like sequences, often linked to fluid migration or stress transfer along pre-existing faults. Depths recorded during the 2026 swarm (mostly 3–10 km) align with typical brittle failure depths in this extensional regime.

No surface rupture or significant damage was associated with the swarm. The largest event (magnitude 5.1) produced only light shaking in nearby communities. Continued monitoring by regional networks remains essential, as the Walker Lane belt retains the potential for larger earthquakes over longer timescales.

References

Nevada Seismological Laboratory, University of Nevada, Reno
U.S. Geological Survey Earthquake Hazards Program
USGS Quaternary Fault and Fold Database of the United States
Nevada Bureau of Mines and Geology, Geological Map of Nevada