Multi-Hazard Improves App Retention - Comparison Of Alerting & Attrition For The Multi-Hazards SD Emergency & The Single-Hazard #QuakeAlert
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https://doi.org/10.1016/j.ijdrr.2025.105832 <-- shared paper
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β€œβ€’ Fire is responsible for over 50 % of alerts for County of San Diego, California, USA.
β€’ App installation rates closely mirror the timing of hazard events.
β€’ Multi-hazard apps retain users at a 15 % higher rate compared to single-hazard apps.
β€’ Higher retention improves likelihood people will receive an alert for low-frequency high-impact events like earthquakes..."
#GIS #spatial #mapping #naturalhazards #Alert #warning #smartphone #userretention #wildfire #SanDiego #California #USA #risk #hazard #mitigation #humanimpacts #socialmedia #push #mobileapps #alerting #earlywarning #warningsystem #multihazard #fire #spatiotemporal #spatialanalysis #earthquake #tsunami #flooding #weather #earlywarning #hazardmanagement #usecase #statistics #events #effect #effectiveness #community #public #infrastructure #loss #damage #cost
Study warns of glacial outburst risks from hydropower projects in Himalayas, caution comes after nod to resume Teesta III | India News - The Times of India

India News: An international study has cautioned that the growing number of hydroelectric projects near glacier lakes in the Himalayas increases risks of glacial

The Times of India
How To Use Free Satellite Data To Monitor Natural Disasters And Environmental Changes
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https://theconversation.com/how-to-use-free-satellite-data-to-monitor-natural-disasters-and-environmental-changes-198140 <-- shared article
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H/T Quisheng Wu
β€œ... [The author] work[s] with geospatial big data as a professor. [This article] is a quick tour of where you can find satellite images, plus some free, fairly simple tools that anyone can use to create time-lapse animations from satellite images….”
#GIS #spatial #mapping #Risk #Prioritization #Hazard #Assessment #EmergencyManagement #disaster #riskmanagement #planning #mitigation #threats #multihazard #EmergencyManagement #RiskAnalysis #gischat #RiskHazard #spatialanalysis #spatiotemporal #people #management #data #SMEs #planninganalytics #riskassessment #riskmitigation #monitoringandevaluation #disastermanagement #disasterriskreduction #remotesensing #imagery #landsat #opendata #openaccess #sentinel #environmental #changes #animation #timelapse #timelapsevideo #tutorial #satellite #satelliteimagery
How to use free satellite data to monitor natural disasters and environmental changes

Time-lapse animations that once took days to create are now easy to build with publicly available satellite images and free online tools.

The Conversation