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Longfin smelt, which live in bays and estuaries along the Pacific Coast, are the sixth fish species in the San Francisco Bay estuary to be added to the federal endangered species list.

Block is among major San Francisco Bay Area tech companies slashing their payrolls this year.

In recent weeks, three gray whales have died in San Francisco Bay.

Milstein noted that whales will occasionally swim into Mission Bay in San Diego or San Francisco Bay.

A hypothetical magnitude-9.3 earthquake near Alaska’s eastern Aleutian Islands could bring a damaging tsunami to the San Francisco Bay Area in about five hours, and to L.A. and Orange counties in about six.