🚨California: 98 Earthquakes In 24 Hours | Major Fault Zone Southern California’s live USGS map is showing 98 earthquakes in the last 24 hours in the region I am tracking, with many of those tiny tremors lining up along major fault trends. On the surface, 98 sounds extreme, but this is where the deeper story starts. USGS estimates that Southern California averages around 10,000 earthquakes every year. That is roughly 25–30 quakes per day on average, and most of them are so small that nobody feel

1.8K views · 26 reactions | A new USGS map shows where damaging...

1.7K views · 108 reactions | In this activity, students plot worldwide earthquake epicenters using current reports of seismicity. These plots reveal narrow zones of seismic activity globally that will aid in understanding plate tectonics. https://www.iris.edu/hq/inclass/lesson/plotting_earthquake_epicenters | EarthScope Consortium | Facebook

5.7K views · 236 reactions | Earthquake! This animated map uses U.S....