QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near Monterey, CA

No earthquake was likely felt in Monterey in the 24 hours to 5:06 am PST (13:06 UTC). The last one was M 3.9, 64 km (40 mi) E, at 3:19 am PDT on 11 August 2026, estimated intensity II (weak) in town; 34 felt reports to USGS. Every earthquake near Monterey

This page: a magnitude 1.6 earthquake was recorded 31 km (19 mi) south-southwest of Monterey, CA, at 11:26 am PDT on 21 July 2019 (18:26 UTC), 5.8 km deep.

USGS: 14km WNW of Point Sur, CA

52 km (33 mi) SW of Salinas, CA · 107 km (66 mi) S of San Jose, CA

11:26 am PDT, Jul 21, 2019 · · 5.8 km deep · released about 7.8 lb of TNT

10 km30 km60 km120 km N Monterey County 66 kmSanta Cruz County 74 kmSan Benito County 90 kmSanta Clara County 102 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
11:26 am PDT on 21 July 2019 ()
Where
31 km (19 mi) south-southwest of Monterey, CA · earthquakes near Monterey
Magnitude
M 1.6 (md)
Depth
5.8 km below the surface
Felt
no reports yet
Nearest
Monterey County, 66 km E
Nearest mapped fault
San Gregorio fault, 13 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 2669 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 10 km (6 mi) from the epicentre. In Monterey, 31 km away, the estimate is intensity I (not felt). 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: Carmel-by-the-Sea, Del Monte Forest.

How big was it?

This earthquake released about 7.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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 3 earthquakes of M5 or more within 50 km:

  1. 5.2 5 km SSW of Spreckels, California · 42 km NE of this epicentre
  2. 5.1 8 km E of Carmel Valley Village, California · 37 km ENE of this epicentre
  3. 5.1 14 km NW of Big Sur, California · 13 km ENE 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 36.3518, -122.0430. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Monterey County, CA 66 km (41 mi) E earthquakes near Monterey County
Santa Cruz County, CA 74 km (46 mi) N earthquakes near Santa Cruz County
San Benito County, CA 90 km (56 mi) ENE earthquakes near San Benito County
Santa Clara County, CA 102 km (63 mi) NNE earthquakes near Santa Clara County
San Mateo County, CA 122 km (76 mi) NNW earthquakes near San Mateo County
Merced County, CA 150 km (93 mi) NE earthquakes near Merced County

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

Aftershocks so far

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

  1. 1.6 16km ESE of Point Sur, CA
  2. 1.9 14km N of Lopez Point, CA
  3. 1.8 20km E of Point Sur, CA
  4. 1.8 16km NNW of Lopez Point, CA
  5. 1.7 9km SSW of Carmel By The Sea, CA
  6. 1.8 14km N of Point Sur, CA
  7. 1.6 17km N of Lopez Point, CA
  8. 2.3 22km NNW of Lopez Point, CA
  9. 2.3 19km ESE of Point Sur, CA
  10. 2.2 22km ESE of Point Sur, CA
  11. 2.0 11km N of Point Sur, CA
  12. 1.5 24km N of Lopez Point, CA
  13. 2.8 22km NNW of Lopez Point, CA
  14. 1.5 1km S of Monterey, CA
  15. 1.7 1km SSW of Monterey, 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.