Significant earthquakes of 1858

November 26, 1858 Earthquake: San Jose,san Francisco, California, United States

November 26, 1858

An earthquake struck San Jose,san Francisco, California, United States on November 26, 1858 at 08:35:00 UTC.

Map

Where it struck, with the other significant earthquakes within 200 km. Circles are sized and colored by magnitude; select one for its page.

The earthquake

Date
November 26, 1858
Time
08:35:00 UTC
Place
San Jose,san Francisco, California, United States
Intensity
IX, violent shaking, on the Modified Mercalli scale
Tsunami
None recorded
Epicenter
37.500° N, 122.000° W
Region
North America and Hawaii

The toll

Damage
Severe (about $5 to $25 million)

Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.

What happened

The USGS’s account of the effects of this earthquake.

The earthquake was severe at San Jose, where an adobe house and the corner of a new building were knocked down. A cornice was thrown off a building in San Francisco, and part of a chimney collapsed at Mountain View. It was felt as far as Downieville, Mariposa and Monterey. (Ref. 38, 56, 368.)
Maximum observed Modified Mercalli Intensity (MMI) VII

Abridged from Seismicity of the United States, 1568-1989 (Revised), by Carl W. Stover and Jerry L. Coffman, U.S. Geological Survey Professional Paper 1527, United States Government Printing Office, Washington: 1993.

In addition to the reports described above, chimneys were thrown down and bells rang at San Jose. People were awakened, objects were thrown down and a number of buildings were cracked at San Francisco. At Stockton, a brick building cracked, plaster was shaken from a ceiling, goods were thrown from shelves and most people were awakened. It was felt strongly at Napa, Pacheco and San Leandro and it was also felt at Petaluma.

Abridged from Preparation of isoseismal maps and summaries of reported effects for pre-1900 California earthquakes, by T.R. Toppozada, C.R. Real and D.L. Parke, California Division of Mines and Geology Open-File Report 81-11 SAC, Sacramento: 1981; updated and presented by interactive map on California Geological Survey website (http://maps.conservation.ca.gov/cgs/historicearthquakes/).

From the USGS event page for cdmg18581126083500000. U.S. Geological Survey text and figures are in the public domain.

Magnitude estimates

The magnitudes the USGS catalog lists for this earthquake, by scale and by who computed them. NCEI’s own scales are in the table above.

Mag.ScaleComputed byNotes
6.2Mw, momentCDMGPreferred · Reviewed
6.1ML, local (Richter)USGS historic United States catalogFinal

References for the magnitude and location

The USGS’s notes on how this earthquake’s official magnitude and location were set.

Location and Magnitude updated 23-Mar-2021
Reference:
California Department of Conservation, California Geological Survey
Downloadable list of magnitude 4 and greater earthquakes, compiled from various sources (1769-2000)
online at https://www.conservation.ca.gov/cgs/Pages/Earthquakes/earthquake-catalog.aspx

Sources NCEI cites

The publications NCEI lists for this record. The numbers match the “reference #” notes in its account above.

  1. #1074 Wood, Harry O., Maxwell W. Allen, and N.H. Heck (1934). Destructive and Near-Destructive Earthquakes in California and Western Nevada, 1769-1933, U.S. Coast and Geodetic Survey, Special Publication no. 191, 24 p.

Other significant earthquakes nearby

Within 200 km, the deadliest first.

More

Significant earthquakes of 1858The 1800sRecent earthquakes near hereThis day in weather history

Sources

Significant earthquakes from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-10-01. NCEI earthquake 2031. The written accounts and the magnitude estimates are from the USGS earthquake catalog, event cdmg18581126083500000, matched to this record by time, place and magnitude.