-
Our Government
-
- Board of Commissioners Agendas and Minutes Meeting Calendar Departments Assessment & Tax Clerk/Elections County Administration District Attorney Emergency Management Fair Office Finance Human Resources Justice Court
- Departments Juvenile Department Planning Public Health Public Transit - The Loop Public Works Sheriff's Office Surveyor Treasurer Veterans Services Boards and Commissions Airport Advisory Committee Board of Property Tax Appeals Budget Committee Compensation Board
- Boards and Commissions Equity Fund Committee Fair Board Forestland Classification Committee Parks Committee Planning Commission Road Committee Solid Waste Advisory Committee The Loop Advisory Committee Wolf Depredation Advisory Committee
-
- Roads & Land
-
Public Safety
-
- Sheriff's Office Sheriff Kenneth W Matlack Undersheriff John A Bowles Concealed Handgun Licenses Emergency Management Training Emergency Notifications Alert Sense Contact Us!
- Sheriff's Department Divisions Communication Division Communications Center (911) Jail/Prisoners Administration Division Civil Unit Records Corrections Division Parole and Probation Community Service Work
- Operations Division Uniformed Patrol Criminal Investigations School Resource Officer Search and Rescue Court Security Marine Patrol Reserve Deputy OHV Park Justice Court Juvenile Department
-
- Health & Family
-
I Want To...
-
- Apply for a Job Alerts and Notifications Email Subscriptions Events and Meetings Agendas and Minutes Calendar Services Directory
- Contact the County Submit a Request or Concern County Offices Staff Directory County Ordinances Documents and Forms Documents and Reports Forms and Applications Budget Documents
- In the News County News Ride a Bus Find out about... Equity Fund Loan Program View Election Results View Maps
- Public Records Requests
-
Earthquake
Earthquake Summary
The earthquake hazard in Morrow County has been evaluated by the State and the USGS. There are no identified fault lines lying in the County but residents have felt shaking from nearby fault activity and new fault lines have been discovered not far away to the north in Washington State. Still, a major earthquake hazard event has been determined to have a small likelihood of occurrence in Morrow County.
Earthquake History and Location in Morrow County
The Pacific Northwest Seismograph Network records roughly 1,000 earthquakes per year in Washington and Oregon. Between one and two dozen of these cause enough ground shaking to be felt by residents. Most are located on the western side of the Cascade Mountains. This part of Oregon has experienced four historic earthquakes of significance that were centered in the eastern Oregon region: the 1893 Umatilla earthquake, the 1936 Milton-Freewater earthquake, the 1951 Hermiston earthquake, and the 1976 Deschutes Valley earthquake. All were shallow crustal earthquakes. There are also identified faults in the region that have been active in the last 20,000 years. The region has also been shaken historically by crustal and intra plate earthquakes and prehistorically by subduction zone earthquakes centered outside the area.
