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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:
10km SW of Niland, CA
Period:
28 Mar 2014 04:06:00 - 29 Mar 2014 20:59:04 (1 day 16 hours 53 minutes)
Volcanoes in 100km radius:
Salton Buttes(1km), Prieto, Cerro(93km)
Earthquakes:
34
99 swarms found nearby.
2000
11 May
2 days 10 hours
52 earthquakes
2001
S20011113.1(13.7km)
13 Nov
23 hours
99 earthquakes
2002
24 Feb
1 day 2 hours
31 earthquakes
2003
13 Apr
1 day 18 hours
32 earthquakes
S20030524.1(28.5km)
23 May
1 day 22 hours
161 earthquakes
20 Sep
1 day 8 hours
31 earthquakes
2004
15 Mar
2 days 20 hours
64 earthquakes
2005
29 Aug
10 hours
24 earthquakes
31 Aug
11 days 21 hours
953 earthquakes
19 Sep
2 days 11 hours
50 earthquakes
2008
15 Mar
5 days 22 hours
111 earthquakes
27 May
9 hours
47 earthquakes
S20080602.1(15.9km)
2 Jun
2 days 13 hours
145 earthquakes
29 Sep
1 day 4 hours
37 earthquakes
S20081030.1(28.5km)
30 Oct
2 days 14 hours
105 earthquakes
2009
S20090321.1(13.6km)
21 Mar
2 days 3 hours
50 earthquakes
S20090324.1(14.6km)
24 Mar
6 days 21 hours
410 earthquakes
17 Apr
1 day 13 hours
29 earthquakes
13 Jun
1 day 5 hours
53 earthquakes
1 Aug
3 days 10 hours
106 earthquakes
S20090924.1(23.1km)
24 Sep
19 hours
28 earthquakes
2 Oct
2 days 23 hours
43 earthquakes
S20091101.1(12.8km)
1 Nov
12 hours
26 earthquakes
7 Nov
5 hours
36 earthquakes
17 Nov
1 day 19 hours
142 earthquakes
23 Nov
4 days 3 hours
69 earthquakes
2010
10 Jan
10 days 2 hours
233 earthquakes
22 Jan
2 days 3 hours
46 earthquakes
21 Feb
1 day 20 hours
28 earthquakes
4 Apr
6 days 21 hours
132 earthquakes
PS20100405.1(114.5km)
4 Apr
1 hours
5 earthquakes
22 Apr
1 day 4 hours
38 earthquakes
5 Aug
1 day 0 hours
26 earthquakes
28 Aug
1 day 2 hours
32 earthquakes
11 Nov
1 day 10 hours
28 earthquakes
S20101213.1(15.8km)
13 Dec
12 hours
49 earthquakes
S20101215.1(23.0km)
15 Dec
1 day 4 hours
101 earthquakes
27 Dec
11 hours
66 earthquakes
31 Dec
1 day 14 hours
33 earthquakes
2011
7 Jan
2 days 20 hours
94 earthquakes
27 Mar
1 day 18 hours
42 earthquakes
2 Apr
1 day 12 hours
34 earthquakes
1 Jul
1 day 2 hours
36 earthquakes
2012
8 Feb
2 days 0 hours
29 earthquakes
19 Feb
1 day 18 hours
86 earthquakes
26 Feb
2 days 1 hours
88 earthquakes
29 Feb
14 hours
34 earthquakes
3 Mar
3 days 11 hours
72 earthquakes
22 Mar
2 days 22 hours
73 earthquakes
20 May
2 days 1 hours
33 earthquakes
8 Jun
19 hours
95 earthquakes
S20120826.1(24.6km)
26 Aug
11 days 23 hours
972 earthquakes
S20120910.1(11.5km)
9 Sep
1 day 1 hours
28 earthquakes
24 Sep
1 day 17 hours
51 earthquakes
2013
18 Feb
4 days 14 hours
57 earthquakes
3 Apr
2 days 12 hours
59 earthquakes
28 Apr
2 days 2 hours
41 earthquakes
16 May
5 days 21 hours
135 earthquakes
3 Jun
3 days 15 hours
134 earthquakes
19 Aug
3 days 21 hours
47 earthquakes
27 Aug
1 day 17 hours
37 earthquakes
8 Oct
1 day 23 hours
83 earthquakes
13 Oct
2 days 10 hours
83 earthquakes
16 Oct
1 day 21 hours
50 earthquakes
31 Oct
16 hours
31 earthquakes
27 Nov
1 day 7 hours
52 earthquakes
21 Dec
1 day 8 hours
65 earthquakes
2015
21 May
1 day 13 hours
38 earthquakes
2016
29 Jul
1 day 9 hours
30 earthquakes
26 Sep
6 days 7 hours
322 earthquakes
31 Oct
23 hours
39 earthquakes
S20161231.1(27.6km)
31 Dec
3 days 4 hours
317 earthquakes
2018
17 Jun
1 day 9 hours
26 earthquakes
2019
17 Jan
4 days 13 hours
71 earthquakes
2020
5 May
1 day 14 hours
56 earthquakes
9 Aug
4 days 12 hours
319 earthquakes
S20200930.1(10.8km)
30 Sep
9 days 1 hours
1724 earthquakes
22 Oct
2 days 5 hours
53 earthquakes
VS20201113.1(12.2km)
13 Nov
23 hours
38 earthquakes
26 Nov
1 day 10 hours
27 earthquakes
2021
4 Jan
21 hours
43 earthquakes
10 Jan
6 hours
26 earthquakes
31 Jan
23 hours
38 earthquakes
8 Feb
3 days 9 hours
117 earthquakes
18 Mar
14 hours
27 earthquakes
4 Jun
19 days 4 hours
2347 earthquakes
S20210611.1(29.7km)
11 Jun
4 hours
26 earthquakes
23 Aug
2 days 11 hours
48 earthquakes
2022
20 Sep
23 hours
39 earthquakes
2023
30 Apr
17 hours
68 earthquakes
3 Oct
1 day 11 hours
29 earthquakes
9 Dec
18 hours
34 earthquakes
2024
VS20240211.1(13.8km)
10 Feb
1 day 21 hours
26 earthquakes
S20240214.3(12.6km)
14 Feb
1 day 12 hours
31 earthquakes
20 Dec
12 hours
48 earthquakes
2025
10 Apr
1 day 9 hours
64 earthquakes
22 Apr
10 hours
28 earthquakes
11 Jul
1 day 18 hours
132 earthquakes
2026
S20260510.1(27.3km)
9 May
4 days 16 hours
477 earthquakes
AI-generated article — for informational and entertainment purposes only. May contain inaccuracies. Full disclaimerFound an error?

Seismic Swarm VS20140328.1: Analysis of Activity Near Niland, California

Seismic swarm VS20140328.1 occurred approximately 10 km southwest of Niland, California, in the Imperial Valley region. The event sequence began at 04:06 UTC on 28 March 2014 and concluded at 20:59 UTC on 29 March 2014, spanning 40 hours and 53 minutes. During this period, 34 earthquakes were recorded, with magnitudes ranging from 0.4 to 3.4 and focal depths primarily between 0 and 4 km.

The Imperial Valley lies within the Salton Trough, a tectonically active pull-apart basin formed by the interaction of the San Andreas Fault system and the Imperial Fault. This area experiences frequent earthquake swarms due to right-lateral strike-slip faulting and associated geothermal activity linked to the underlying crustal extension. Historical seismic patterns in the region show that swarms often cluster in time and space, reflecting fluid migration or stress transfer along minor faults rather than large mainshock-aftershock sequences.

Analysis of the swarm timeline reveals an initial cluster of events on 28 March, including the largest shock of magnitude 3.4 at 04:15 UTC. Subsequent activity tapered through the afternoon and evening, with smaller events persisting into 29 March. Depths remained shallow throughout, consistent with the brittle upper crust in this extensional setting. No events exceeded magnitude 3.5, aligning with the typical character of swarms in the Brawley Seismic Zone, which encompasses the Niland area.

Regionally, the Salton Trough has produced notable seismic episodes since the early 20th century, including the 1940 Imperial Valley earthquake and multiple swarms in the 1970s and 1980s. The zone continues to exhibit elevated microseismicity owing to its position along the Pacific-North America plate boundary. Geothermal fields near the Salton Sea further influence local stress regimes through fluid extraction and injection practices.

Since 2000, the broader area has recorded 67 documented swarms. Yearly occurrences varied, with peaks in 2010 (13 swarms) and 2013 (13 swarms), followed by lower counts in earlier years such as 2000–2004. This distribution underscores the persistent seismic productivity of the Imperial Valley without indicating a long-term increase or decrease in swarm frequency.

The 2014 swarm fits within established patterns of short-duration, low-magnitude activity that rarely produces surface rupture or significant damage. Monitoring by regional networks continues to track such sequences for potential links to larger tectonic events along the San Andreas Fault.

References

United States Geological Survey Earthquake Hazards Program
California Geological Survey
Southern California Earthquake Data Center