Earthquake · reviewed by a seismologist
M 1.9md
Earthquake near Hollister, CA
No earthquake was likely felt in Hollister in the 24 hours to 3:20 am PST (11:20 UTC). The last one was M 2.0, 14 km (9 mi) WSW, at 2:11 am PST on 11 November 2026, estimated intensity II (weak) in town. Every earthquake near Hollister
This page: a magnitude 1.9 earthquake was recorded 10 km (6 mi) southeast of Hollister, CA, at 4:25 am PDT on 30 August 2019 (11:25 UTC), 9.6 km deep. 1 person has reported feeling it to USGS.
USGS: 1km ENE of Tres Pinos, CA
71 km (44 mi) SE of San Jose, CA · 31 km (19 mi) ENE of Salinas, CA
- When
- 4:25 am PDT on 30 August 2019 ()
- Where
- 10 km (6 mi) southeast of Hollister, CA · earthquakes near Hollister
- Magnitude
- M 1.9 (md)
- Depth
- 9.6 km below the surface
- Felt
- 1 report · strongest reported intensity III
- Nearest
- San Benito County, 29 km SE
- Nearest mapped fault
- Quien Sabe fault, 3 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 2620 days ago
Earthquake alerts for Hollister, 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 11 km (7 mi) from the epicentre. In Hollister, 10 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.
Likely felt in: Hollister 10 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 22 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 680,000× the energy of this one
- Magna, Utah 2020 M 5.7 480,000× the energy of this one
- Around the size people start to feel M 3.0 43× the energy of this one
- This earthquake M 1.9 about 22 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 4.6 on 2017-11-13 — about 10,000 times the energy of this one.
Before 2016, the USGS record lists 23 earthquakes of M5 or more within 50 km; the five largest:
- 6.5 Near Morgan Hill, California · 46 km NW of this epicentre
- 5.9 10 km SE of Tres Pinos, California · 10 km SE of this epicentre
- 5.8 Near Watsonville, California · 39 km WNW of this epicentre
- 5.8 Near Paicines, California · 15 km SSE of this epicentre
- 5.8 The 1979 Coyote Lake, California Earthquake · 39 km NNW 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 36.7958, -121.3088. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| San Benito County, CA | 29 km (18 mi) | SE | earthquakes near San Benito County |
| Santa Clara County, CA | 58 km (36 mi) | NW | earthquakes near Santa Clara County |
| Monterey County, CA | 62 km (38 mi) | S | earthquakes near Monterey County |
| Santa Cruz County, CA | 67 km (41 mi) | WNW | earthquakes near Santa Cruz County |
| Merced County, CA | 68 km (42 mi) | NE | earthquakes near Merced County |
| Stanislaus County, CA | 89 km (56 mi) | NNE | earthquakes near Stanislaus County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
60 earthquakes have been recorded within 50 km since this one.
- 2.5 8km NNW of Pinnacles, CA
- 1.6 10km NW of Pinnacles, CA
- 1.9 8km NW of Pinnacles, CA
- 2.0 8km NE of Pinnacles, CA
- 2.3 8km NE of Pinnacles, CA
- 2.1 10km SW of Tres Pinos, CA
- 1.7 8km NNW of Pinnacles, CA
- 1.6 7km NNW of Pinnacles, CA
- 2.7 7km NNW of Pinnacles, CA
- 3.2 8km NNW of Pinnacles, CA
- 2.3 3km SW of San Juan Bautista, CA
- 2.6 3km SSW of San Juan Bautista, CA
- 1.8 6km NNW of Pinnacles, CA
- 2.2 12km SE of Pinnacles, CA
- 1.9 16km NW of Pinnacles, 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.