Earthquake · reviewed by a seismologist
M 1.7md
Earthquake near Susanville, CA
No earthquake was likely felt in Susanville in the 24 hours to 3:34 pm PST (23:34 UTC). The last one was M 2.2, 15 km (9 mi) N, at 8:16 am PDT on 25 September 2026, estimated intensity II (weak) in town. Every earthquake near Susanville
This page: a magnitude 1.7 earthquake was recorded 15 km (9 mi) south-southwest of Susanville, CA, at 8:44 am PDT on 22 March 2019 (15:44 UTC), 4.0 km deep.
USGS: 15km SSW of Susanville, CA
- When
- 8:44 am PDT on 22 March 2019 ()
- Where
- 15 km (9 mi) south-southwest of Susanville, CA · earthquakes near Susanville
- Magnitude
- M 1.7 (md)
- Depth
- 4.0 km below the surface
- Felt
- no reports yet
- Nearest
- Plumas County, 35 km SSW
- Nearest mapped fault
- Honey Lake fault, 7 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2793 days ago
Earthquake alerts for Susanville, CA
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 12 km (7 mi) from the epicentre. In Susanville, 15 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
Earthquakes near other towns within 30 km: Johnstonville, Janesville, Westwood, Greenville.
How big was it?
This earthquake released about 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,300,000× the energy of this one
- Magna, Utah 2020 M 5.7 900,000× the energy of this one
- Around the size people start to feel M 3.0 80× the energy of this one
- This earthquake M 1.7 about 12 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
The largest earthquake within 50 km since 2016 was M 4.5 on 2016-08-04 — about 13,000 times the energy of this one.
Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:
- 5.7 2 km NNE of Canyondam, California · 30 km WSW of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 40.3000, -120.7373. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Plumas County, CA | 35 km (22 mi) | SSW | earthquakes near Plumas County |
| Lassen County, CA | 47 km (29 mi) | NNE | earthquakes near Lassen County |
| Sierra County, CA | 82 km (51 mi) | SSE | earthquakes near Sierra County |
| Butte County, CA | 102 km (63 mi) | SW | earthquakes near Butte County |
| Washoe County, NV | 103 km (64 mi) | ENE | earthquakes near Washoe County |
| Nevada County, CA | 112 km (69 mi) | S | earthquakes near Nevada County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
58 earthquakes have been recorded within 50 km since this one.
- 1.6 3km NE of Canyondam, CA
- 2.3 15km SE of Honey Lake, CA
- 2.1 6km NNW of Greenville, CA
- 2.0 3km NNE of Spring Garden, CA
- 3.1 2km NE of Prattville, CA
- 1.6 9 km NNW of Greenhorn, California
- 1.8 7km SW of Susanville, CA
- 1.6 30km NNE of Hamilton Branch, CA
- 1.5 15km ENE of East Shore, CA
- 1.7 5km NE of Canyondam, CA
- 3.1 5km NE of East Quincy, CA
- 1.6 3km SSW of East Shore, CA
- 1.5 4km NNW of Almanor, CA
- 2.3 4km N of Almanor, CA
- 1.8 20km WNW of Susanville, CA
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.