30 Nov 18 earthquake x-section and aftershocks

Using aftershocks to define fault ruptures by Michael West

Here is a cross-section through Friday’s earthquake and subsequent aftershocks. The mainshock symbol marks where the M7 earthquake began. The cloud of aftershocks show, very approximately, the region of the fault that actually ruptured during the quake (black dots mark historical earthquakes). We call this the “rupture patch”. The aftershocks suggest that the rupture patch […]

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Aftershock Forecast

The data below are the most preferred data available The data below have been reviewed by a scientist Be ready for more earthquakes More earthquakes than usual (called aftershocks) will continue to occur near the mainshock. When there are more earthquakes, the chance of a large earthquake is greater which means that the chance of […]

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Road Weather Information System

The Road Weather Information System (RWIS) is a network of meteorological and pavement sensors located along the highway system. RWIS stations are located in strategic locations to provide accurate real-time road weather information and critical observations for forecasts. This and other weather information helps Alaska Department of Transportation & Public Facilities improve timeliness of maintenance […]

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Winter Driving Tips

Check with National Weather Service before traveling. The National Weather Service issues winter weather warnings, watches and advisories. Please see www.arh.noaa.gov/hazards.php No Winter Maintenance: A few major highways are not maintained during the winter months. Travel is strongly discouraged for your safety. Please abide by these warnings as roads are impassable due to extreme weather […]

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