Mount Rainier Active Volcano

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Lahar Evacuation Routes: road
Science and Mount Rainier: image of Mount Rainier
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Mount Rainier is much more than a mountain in the sky. Constructed of hundreds of lava flows, and capped by as much glacier ice as all other Cascade volcanoes combined, Rainier’s steep rubbly slopes and abundant water make it prone to landslides and lahars (volcanic mudflows), especially during eruptions. Lahars are the biggest hazards to the area. Scientists and emergency officials watch and warn.

Do your part by being prepared.

Ready


Live Safety Near Mount Rainier
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Hazard Maps
Assess your local hazards.
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Make a Plan
Use forms to identify evacuation routes and meeting locations.
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Emergency Kit
Assemble supplies.
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Communicate
How will you communicate your plans and how will you connect with those important to you?

Set


Stay informed.
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Emergency broadcasts
NOAA weather radio and 511 emergency travel.
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County Alerts
Sign up for local alerts.
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USGS Volcano Notification Service
Receive notices on specified volcanos.
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Outdoor sirens
Available in some communities

Go


Lahar Warning issues, move off the valley floor.
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Evacuate
Evacuate by vehicle or on foot to high ground above the valley floor. Do not stop to look, continue as directed.
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Find Shelter
If you are safe from lahars and ash is falling, seek shelter in a building or vehicle.
How to prepare for volcanic ash.
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