Incident Summary:

7/23/1970: Unknown perpetrators, located on the Grove-Shafter Freeway, threw a bomb at the California Highway Patrol office in Oakland, California, United States. The bomb landed fifty feet away from the building and created a small hole in the ground.



United States

North America

region/u.s. state:


Los Angeles

Attack Information
Type of Attack (more) Bombing/Explosion
Successful Attack? (more) Yes
Target Information (more)
Target Type: Government (General)
Name of Entity California Highway Patrol
Specific Description California Highway Patrol office, Oakland California
Nationality of Target United States
Additional Information
Hostages No
Ransom No
Property Damage Yes
Extent of Property Damage Minor (likely < $1 million)
Value of Property Damage Unknown
Weapon Information
Type Sub-type
Explosives Other Explosive Type
Weapon Details
Thrown bomb that consisted of black power and filled with nuts and bolts.
Additional Information
Suicide Attack?No
Part of Multiple Incident?No
Criterion 1 (more) Yes
Criterion 2 (more) Yes
Criterion 3 (more) Yes
Additional Information There were three other bombings on government targets in the Oakland area within a seven day period (197007270004, 197007270005, 197007300001). Moreover, a bomb was thrown at the California High Patrol office in Santé Fe Springs five weeks later (197008290004).
Perpetrator Group Information
Group Name Claimed Responsibility
Left-Wing Militants (suspected) No
Perpetrator Statistics
Number of Perpetrators Unknown
Number of Captured Perpetrators Unknown
Casualty Information
Total Number of Casualties 0 Fatalities / 0 Injured
Total Number of Fatalities 0
Number of U.S. Fatalities 0
Number of Perpetrator Fatalities 0
Total Number of Injured 0
Number of U.S. Injured 0
Number of Perpetrators Injured 0
"The State: Bomb Explodes Near Oakland CHP Office," Los Angeles Times, July 24, 1970.
Marcia McKnight Trick, "Chronology of Incidents of Terroristic, Quasi-Terroristic, and Political Violence in the United States: January 1965 to March 1976," National Advisory Committee on Criminal Justice Standards and Goals: Report of the Task Force on Disorders and Terrorism, 1976.
Christopher Hewitt, "Political Violence and Terrorism in Modern America: A Chronology," Praeger Security International, 2005.