Earthquake Science

On Sunday, August 24, 2014, a magnitude 6.0 earthquake struck the Napa Valley of California. According to the National Geographic, the event was centered about 6.7 miles under the earth and was one of the largest in the area since the 1989 Loma Prieta quake that measured 7.0.

Today’s quake was reported by the Earthquake Report Center from San Francisco to Sacramento and classified as a “typical strike-slip earthquake with a mainly horizontal movement.” They called it the “most dangerous earthquake type in the world.” Their web page monitors and updates news about the earthquake.

While reports are still coming in, initial reports suggest this earthquake was triggered by a crack or fault in the earth’s crust known as the Franklin Fault, thought to be dormant for 1.6 million years. Continue reading