QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

Earthquake near Paradise, CA

No earthquake was likely felt in Paradise in the 24 hours to 12:07 am PST (08:07 UTC). The last one was M 5.6, 145 km (90 mi) WSW, at 8:10 am PDT on 24 June 2026, estimated intensity III (weak) in town; 5,311 felt reports to USGS. Every earthquake near Paradise

This page: a magnitude 1.8 earthquake was recorded 36 km (22 mi) northeast of Paradise, CA, at 12:30 pm PDT on 2 September 2019 (19:30 UTC), 13 km deep.

USGS: 6km WSW of Belden, CA

49 km (31 mi) ENE of Chico, CA · 135 km (84 mi) WNW of Reno, NV

12:30 pm PDT, Sep 2, 2019 · · 13 km deep · released about 17 lb of TNT

10 km30 km60 km120 km N Plumas County 42 kmButte County 43 kmTehama County 79 kmYuba County 79 kmSierra County 82 kmNevada County 90 kmLassen County 101 kmGlenn County 102 kmShasta County 106 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
12:30 pm PDT on 2 September 2019 ()
Where
36 km (22 mi) northeast of Paradise, CA · earthquakes near Paradise
Magnitude
M 1.8 (md)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Plumas County, 42 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2626 days ago

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 4 km (2 mi) from the epicentre. In Paradise, 36 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: Magalia.

How big was it?

This earthquake released about 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 640,000× the energy of this one
  3. Around the size people start to feel M 3.0 57× the energy of this one
  4. This earthquake M 1.8 about 17 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.7 2 km NNE of Canyondam, California · 32 km NE 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 39.9840, -121.3200. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Plumas County, CA 42 km (26 mi) E earthquakes near Plumas County
Butte County, CA 43 km (27 mi) SW earthquakes near Butte County
Tehama County, CA 79 km (49 mi) WNW earthquakes near Tehama County
Yuba County, CA 79 km (49 mi) S earthquakes near Yuba County
Sierra County, CA 82 km (51 mi) ESE earthquakes near Sierra County
Nevada County, CA 90 km (56 mi) SSE 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. 1.5 15km ENE of East Shore, CA
  2. 1.7 5km NE of Canyondam, CA
  3. 3.1 5km NE of East Quincy, CA
  4. 1.7 14km SW of Almanor, CA
  5. 1.6 3km SSW of East Shore, CA
  6. 1.5 4km NNW of Almanor, CA
  7. 2.3 4km N of Almanor, CA
  8. 1.8 3km NNE of Prattville, CA
  9. 1.7 10km N of Thermalito, CA
  10. 1.9 10km N of Spring Garden, CA
  11. 2.3 5km NNE of Little Grass Valley, CA
  12. 2.1 9km NW of Caribou, CA
  13. 2.1 6km S of Bucks Lake, CA
  14. 2.1 8km W of La Porte, CA
  15. 1.9 10km NNW of Oroville, 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.