Napa Earthquake: Frequently Asked Questions Due to the recent devastation caused by the August 24, 2014, Northern California earthquake and associated aftershocks, TTB has compiled the following FAQs as guidance for regulated industry members whose business have been adversely affected by the earthquake. Because of the number of wineries that are in that area, these FAQs mostly affect issues concerning wineries, but we have included guidance that affects other commodities. https://www.ttb.gov/announcements/announcement-napa-earthquake-faqs.pdf