QuakeIndex

Earthquake · reviewed by a seismologist

M 3.5ml

12km N of Simmler, CA

· 8.2 km deep · released about 2.8 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Luis Obispo County 44 kmKings County 70 kmSanta Barbara County 103 kmKern County 114 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
Magnitude
M 3.5 (ml)
Depth
8.2 km below the surface
Felt
10 reports · strongest reported intensity II
Measured shaking
intensity V (ShakeMap)
Nearest
San Luis Obispo County, 44 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1559 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 10 people have reported feeling it to USGS.

How big was it?

This earthquake released about 2.8 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.5 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 61,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 2,700× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,900× the energy of this one
  4. This earthquake M 3.5 about 2.8 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 5.8× more

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.

Where

Epicentre 35.4607, -119.9757. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Luis Obispo County, CA 44 km (27 mi) E of here earthquakes near San Luis Obispo County
Kings County, CA 70 km (43 mi) SSW of here earthquakes near Kings County
Santa Barbara County, CA 103 km (64 mi) N of here earthquakes near Santa Barbara County
Kern County, CA 114 km (71 mi) W of here earthquakes near Kern County
Tulare County, CA 137 km (85 mi) SW of here earthquakes near Tulare County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

50 earthquakes have been recorded within 50 km since this one.

  1. 2.3 15 km SSE of Avenal, California
  2. 1.9 15 km SSE of Avenal, California
  3. 1.8 Central California
  4. 1.9 15 km SSE of Avenal, California
  5. 1.8 15 km SSE of Avenal, California
  6. 1.8 15 km SSE of Avenal, California
  7. 1.8 12 km SSW of Kettleman City, California
  8. 3.5 15 km SSE of Avenal, California
  9. 1.8 14 km SSW of Kettleman City, California
  10. 2.0 14 km SSE of Avenal, California
  11. 1.5 14 km SSE of Avenal, California
  12. 1.5 14 km SSE of Avenal, California
  13. 1.7 15 km SSE of Avenal, California
  14. 2.8 15 km SSE of Avenal, California
  15. 1.9 15 km SSW of Kettleman City, California

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

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