Optical fiber sensors have attracted considerable attention for marine environment and
marine structural health monitoring, owing to advantages including resistance to …

BACKGROUND The solid Earth, oceans, and atmosphere together form a complex
interacting geosystem. Processes relevant to understanding Earth's geosystem behavior …

Distributed fiber-optic sensing technology coupled to existing subsea cables (dark fiber)
allows observation of ocean and solid earth phenomena. We used an optical fiber from the …

Sparse seismic instrumentation in the oceans limits our understanding of deep Earth
dynamics and submarine earthquakes. Distributed acoustic sensing (DAS), an emerging …

Fiber-optic distributed acoustic sensor (DAS) is one of the most attractive and promising fiber-
optic sensing technologies in the recent decade. It can simultaneously detect and retrieve …

Natural hazard prediction and efficient crust exploration require dense seismic observations
both in time and space. Seismological techniques provide ground-motion data, whose …

Distributed acoustic sensing (DAS) is a new, relatively inexpensive technology that is rapidly
demonstrating its promise for recording earthquake waves and other seismic signals in a …

Distributed acoustic sensing (DAS) is an emerging technology that repurposes a fiber-optic
cable as a dense array of strain sensors. This technology repeatedly **s a fiber with laser …

Two thirds of the surface of our planet are covered by water and are still poorly instrumented,
which has prevented the earth science community from addressing numerous key scientific …

Earthquake focal mechanisms provide critical in-situ insights about the subsurface faulting
geometry and stress state. For frequent small earthquakes (magnitude< 3.5), their focal …