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This dataset consists of over 800 field observations of ground failure (landslides, lateral spreading, and liquefaction) and other damage triggered by the 2019-2020 Puerto Rico earthquake sequence. The sequence started with a M4.7 earthquake on 28 December 2019, followed by many more earthquakes, including 15 larger than M5 (as of 7 July 2020). The M6.4 mainshock, which is thought to have triggered much of the observed ground failure, occurred on 7 January 2020. Most field reconnaissance efforts documented here took place as soon as possible after the mainshock, from 12-18 January 2020, to attempt to capture ephemeral data before evidence was destroyed by natural forces or repairs, but observations continued to...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Earthquake Hazards Program,
GHSC,
Geologic Hazards Science Center,
Guayanilla,
Guánica, All tags...
Landslide Hazards Program,
Peñuelas,
Ponce,
Puerto Rico,
USGS,
USGS Science Data Catalog (SDC),
United States,
earth science,
earthquake hazard,
geophysics,
landslides,
lateral spread,
liquefaction,
none,
rock fall,
seismic hazard,
seismology, Fewer tags
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In Puerto Rico, tens of thousands of landslides, slumps, debris flows, rock falls, and other slope failures were triggered by Hurricane María, which made landfall on 20 September 2017. “Landslide” is used here and below to represent all types of slope failures. This dataset is a point shapefile of landslide headscarps identified across Puerto Rico using georeferenced aerial and satellite imagery recorded following the hurricane. The imagery used includes publicly available aerial imagery obtained by the Federal Emergency Management Agency (FEMA; Quantum Spatial, Inc., 2017), aerial imagery obtained by the National Oceanic and Atmospheric Administration (NOAA; NOAA, 2017), and several WorldView satellite imagery...
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This data release contains digital video files from the USGS of Mount St. Helens volcano in the months leading up to the cataclysmic eruption on May 18, 1980 as well as the first two years of the eruption. Original videos were collected on an assortment of cameras and film types, including 16 mm, 8 mm and Super 8 mm during USGS field campaigns on the ground as well as from the air and on time-lapse camera stations setup around the volcano. Videos capture USGS crews collecting data as well as an assortment of volcanic processes, including dome growth, ash emissions, rockslides, and pyroclastic flows. These film records represent a tremendous resource to the volcanology community as they represent visual recordings...
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Mount St. Helens,
Mount St. Helens Collection,
Mount St. Helens, Washington,
USGS Science Data Catalog (SDC),
Volcanic Activity, All tags...
Volcanic Eruption,
Volcanic Unrest,
Volcano,
Volcano Observatories,
Volcanology, Fewer tags
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