March 11, 2021: The California Geological Survey issues new Tsunami Hazard Area Maps for Del Norte and Mendocino counties By Rick Wilson, California Geological Survey (CGS) Many of my tsunami and non-tsunami colleagues can remember what they were doing on March 11, 2011, the day the magnitude 9 Tohoku-Oki earthquake struck offshore of Japan, unleashing…
Category: Geology
Celebrating Our Engineers for #EngineersWeek, February 22-26
DOC celebrates the engineers on staff for #EngineersWeek. We have 284 engineers on our roster throughout four divisions. Let’s meet a few of them.
San Fernando ’71: the Earthquake That Made Us Safer
The San Fernando Earthquake changed how the state approached earthquake hazards,” said Dr. Steve Bohlen, Acting State Geologist of California and head of the California Geological Survey. “There was an increased realization that the state had to do something to limit the damage of these events.”
Q&A with California Geological Survey Librarian Amy Loseth for #LibraryShelfieDay
Most folks don’t know that the Department of Conservation is home to the California Geological Survey library–full of geologic resources, maps, and even rare books dating back to the 1600s! The library, located at 801 K Street, in Downtown Sacramento (across from the Sacramento Public Library) is usually open to the public. With COVID-19 restrictions…
Earth Science Week Day 3 — Fossil Day
It’s Earth Science Week (October 12-16) Continuing on our theme of Earth Science Week, today we are talking about the California State Fossil! Wednesday: October 14: FOSSIL DAY Did you know that California’s official state fossil is the Sabertoothed Cat? How cool is that?! We’ve created some fun facts to help you get to know…
Earth Science Week Day 2 — Earth Observation Day
How the Department of Conservation uses geospatial technology to map, analyze, and observe the Earth’s surface.
It’s Minerals Day — October 12
California Geological Survey geologists map rare earth minerals in the Mojave National Preserve.
CGS Geologists Assess Multiple Fire Burn Areas for Landslide Potential: 10-1-20 Update
Wildfires are a disaster that can spawn yet another disaster. Fire eliminates ground covering on slopes, exposing the soil underneath and making it more susceptible to debris flows. Such events can be catastrophic, as was the case in Montecito (Santa Barbara County) in 2018. David Longstreth, senior engineering geologist in California Geological Survey’s (CGS) Forest and Watershed Geology program, is one…
Explore CGS’ New Tsunami Inundation and Evacuation Maps for Humboldt County
This week, California Geological Survey (CGS) — which provides geologic and seismic expertise to the public and other government offices — released two tsunami hazard maps for Humboldt County: one tsunami inundation map and one tsunami evacuation map.
California Geological Survey Shares Expertise During Nevada’s Largest Temblor in 65 Years
The largest earthquake in Nevada in 65 years drew plenty of attention at the California Geological Survey (CGS) – not because it caused significant damage – but because it helps paints a clearer picture of what’s going on under the Earth’s surface in the east/central part of our state. That’s important for an institution that…