Use of ShakeMap in Emergency Management

Loren TurnerCaltrans, Division of Research & Innovation

EQ Products Used at Caltrans Caltrans responders rely on suite of tools to

assist in post-earthquake response: ShakeMap provides the basis for downstream

response systems. ShakeCast for bridge inspection prioritization. CISN Display for notification at operations centers.

Earthquake Notification System (ENS) for email alerts of events.

California Integrated Seismic Network (CISN)

1900 instruments deployed statewide

1900 instruments deployed statewide

CISN communications backbone consists of five T1 links

CISN communications backbone consists of five T1 links

1994 Northridge Earthquake (Magnitude 6.7)

CISN Display for Caltrans

CISN Display Usage at Caltrans in 24/7 Operations Traffic Management

Centers Districts 1, 2, 4, 6, 7, 8, 10,

11, 12 Emergency Operation

Centers Districts 4, 12

Structures Maintenance Los Angeles and

Sacramento Offices

ShakeCast Suite of web server software Retrieves measured shaking data within

minutes after an earthquake Compares shaking distribution with unique

bridge vulnerabilities Provides hierarchical lists and maps of bridges

most likely impacted Emails info to responders within 10 to 15

minutes following event Provides suite of tools on ShakeCast website

Foundation for ShakeCast

Geology Engineering Judgment

Faults

Strong Motion Data

Vulnerability Modeling

Caltrans Bridge Data

ShakeMap Bridge Fragility

ShakeCast

5.4 Chino HillsJuly 2008

ShakeCast identified the only bridge damaged in this event as the 3rd highest priority for inspection.

7.2 CalexicoApril 2010

ShakeCast identified the only bridge damaged in this event as the top priority for inspection.