Web GIS

TGIS 503 University of Washington Tacoma

USGS live Earthquake data overlayed using Google Maps API

In this lab, students must first render a Google Map, then overlay a live feed. A rough tutorial to learn how to create these maps is provided here.

STEP 1: GeoJSON live feed over a GOOGLE MAP from USGS

Here I used USGS Live JSON feedto create this live map displaying Earthquakes that were 2.5 or more that have occured in the past day. These data are updated every 5 minutes.

STEP 2: Add some style, graduated circle map

Here I used the same USGS Live JSON feedto create this map displaying Earthquakes that were 2.5 or more that have occured in the past day. These data are updated every 5 minutes.