Tsunami warning issued briefly after 7.8-magnitude earthquake jolts Kamchatka

6.1-magnitude quake hits Indonesia's Central Papua: USGS

Magnitude-7.8 earthquake shakes Russia's far east Kamchatka region

Magnitude 7.8 earthquake strikes off Russia's coast, tsunami advisory issued for Alaska

Haze over America's deadliest volcano sparks fears of an eruption

Powerful earthquake hits near Alaska sparking fears of a tsunami

Magnitude 3.5 earthquake strikes East Bay near Clayton

Map: 3.5-Magnitude Earthquake Strikes the San Francisco Bay Area