Location:

Period:

30 Dec 2024 00:46:53 - 17 Jan 2025 04:25:26 (18 days 3 hours 38 minutes)

Volcanoes in 100km radius:

Soda Lakes(44km)

Earthquakes:

232

5 swarms found nearby.

2002

S20021121.1(29.2km)

21 Nov

1 day 14 hours

30 earthquakes

2024

S20241209.3(0.5km)

9 Dec

20 days 10 hours

729 earthquakes

2026

S20260414.1(19.4km)

14 Apr

13 days 11 hours

403 earthquakes

S20260501.1(16.4km)

30 Apr

4 days 5 hours

85 earthquakes

S20260511.1(16.1km)

10 May

1 day 4 hours

35 earthquakes

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Seismic Swarm S20241230.1: Analysis of Activity Near Yerington, Nevada

Seismic swarm S20241230.1 was recorded 20 km northeast of Yerington, Nevada, beginning at 00:46 on 30 December 2024 and concluding at 04:25 on 17 January 2025. Over 435 hours and 38 minutes, the sequence produced 232 earthquakes. This event represents the second swarm documented in the region since 2000, following a single swarm in 2002.

The swarm exhibited typical characteristics of low-to-moderate magnitude sequences common in the Basin and Range Province. Magnitudes ranged from 0.1 to 3.2, with the largest event occurring at 20:40 on 30 December 2024. Depths were shallow, predominantly between 3 km and 7 km, consistent with normal faulting in an extensional tectonic regime.

Examination of the first 100 events reveals an initial burst of activity on 30 December, including multiple events above magnitude 2.0 clustered within a two-hour window in the evening. Magnitudes generally declined after the first day, with most subsequent events falling between 0.5 and 1.5. Depths remained stable in the upper crust, showing limited migration. Temporal distribution indicated episodic peaks rather than a steady decay, a pattern often observed in fluid-driven or stress-transfer swarms within the western Great Basin.

The Yerington area lies within the Walker Lane belt, a zone of dextral shear and extension accommodating part of the Pacific-North America plate boundary strain. This geological setting produces frequent small earthquakes along range-bounding normal faults. Historical records indicate that while large-magnitude events are possible, swarm-type sequences remain infrequent in this specific locale, with only two documented since the start of 2000.

No damage or felt reports of significance were associated with the swarm, reflecting the modest energy release. Continued monitoring is advisable given the region's tectonic activity, though the sequence appears to have concluded without escalation.

References

USGS Earthquake Catalog (earthquake.usgs.gov)
Nevada Seismological Laboratory historical data
SeismoSight internal swarm classification S20241230.1