PAGER

{{Short description|U.S. Geological Survey-operated monitoring system for earthquakes}}

{{other uses|Pager (disambiguation)}}

File:OnePAGER.jpg.]]

Prompt Assessment of Global Earthquakes for Response (PAGER) is a monitoring system for earthquakes. The service is operated by the United States Geological Survey, from its office in Golden, Colorado.{{cite news | url=http://www.slate.com/articles/health_and_science/science/2013/09/pakistan_earthquake_death_toll_two_reported_casualties_experts_guess_thousands.html | title=Major Quake in Pakistan: Two Reported Dead, Experts Guess Several Thousand More | work=Slate | date=2013-09-24 | accessdate=27 September 2013}}

It provides fatality and economic loss impact estimates following significant earthquakes worldwide.{{cite news | url=http://www.thehindubusinessline.com/news/international/57magnitude-earthquake-rocks-indonesia/article5111438.ece | title=5.7-magnitude earthquake rocks Indonesia | work=The Hindu | date=2013-09-10 | accessdate=27 September 2013}} USGS seismologist David J. Wald leads development of the system.{{Cite web |title=David J Wald |url=https://www.usgs.gov/staff-profiles/david-j-wald |access-date=2023-02-22 |publisher=United States Geological Survey}}

The primary purpose of the PAGER system is to inform emergency responders, government and aid agencies, and the media regarding the potential scope of the disaster. Earthquake alerts—formerly sent based on event magnitude and location or population exposure to shaking—are generated based on the estimated range of fatalities and economic losses.{{Cite journal |last=Earle |first=Paul S. |last2=Wald |first2=David J. |last3=Jaiswal |first3=Kishor S. |last4=Allen |first4=Trevor I. |last5=Hearne |first5=Michael G. |last6=Marano |first6=Kristin D. |last7=Hotovec |first7=Alicia J. |last8=Fee |first8=Jeremy |date=2009 |title=Prompt Assessment of Global Earthquakes for Response (PAGER): A System for Rapidly Determining the Impact of Earthquakes Worldwide |url=https://pubs.usgs.gov/of/2009/1131/ |journal=U.S. Geological Survey Open-File Report 2009-1131 |doi=10.3133/ofr20091131|doi-access=free }}{{Cite web |title=PAGER |url=https://earthquake.usgs.gov/data/pager/ |access-date=2023-03-01 |department=Earthquake Hazards Program |publisher=United States Geological Survey}}{{Cite journal |last=Wald |first=D. J. |last2=Earle |first2=P. S. |last3=Allen |first3=T. I. |last4=Jaiswal |first4=K. |last5=Porter |first5=K. |last6=Hearne |first6=M. |date=2008 |title=Development of the U.S. Geological Survey's PAGER system (Prompt Assessment of Global Earthquakes for Response) |journal=The 14th World Conference on Earthquake Engineering: October 12–17, 2008, Beijing, China |language=en |s2cid=127283293 |id={{USGS Index ID|70045585}} {{Academia.edu|49921736}}}}

PAGER is now an automated system that generates information concerning the impact of significant earthquakes worldwide within approximately 20 minutes of any magnitude 5.4 or greater events. PAGER rapidly assesses earthquake impacts by combining data about populations exposed to estimated levels of shaking intensity with models of economic and fatality losses based on past earthquakes in each country or region of the world.