New flood hazard products to support coastal climate adaptation planning in Humboldt County, California
Across the US, coastal communities face increasing threats from flooding, erosion, and rising groundwater tables due to accelerating sea-level rise and changing storm patterns. CoSMoS is a dynamic modeling approach that allows for detailed projections of coastal flooding due to both future sea level rise and storms. It is integrated with long-term coastal evolution (i.e., beach changes and cliff retreat) over large geographic areas (100s of kilometers). CoSMoS models all the relevant physics of a coastal storm (e.g., tides, waves, and storm surge), which are then scaled down to local flood projections for use in community-level coastal planning and decision-making.
USGS-Led Study Reassesses Earthquake Hazard Potential for Central California’s Hosgri Fault
Regional map showing the main fault structures that are part of the Pacific–North American plate boundary along central California. The San Gregorio–Hosgri fault system is predominantly located near the coastline and highlighted in red. Inset map shows the focus region of this study where the Cross-Hosgri slope is located. A new study from United States Geological Survey (USGS) researchers and industry partners uses advanced sub-surface analyses and sediment dating to reassess the slip rate of the Hosgri fault off the central California coast. The research was led by Dr. Jared Kluesner, USGS Research Geophysicist at the Pacific Coastal and Marine