Earthquake AnalystYour source for official seismic data.Analyzed | Visualized | ExplainedAnalyzed | Visualized | ExplainedData are provided by the organizations below. Each result and JSON export includes the providers used, retrieval time, transformations and available dataset citations. Source access does not transfer ownership or imply endorsement.
Optional satellite basemap: NASA GIBS, MODIS Terra corrected reflectance true color, approximately 250 m resolution.
Provider website · Citation or usage guidance
Daily imagery dated in UTC, with clouds and coverage gaps. Regional context, not live imagery or evidence of earthquake damage. Imagery loads directly from NASA on request in the public interactive map. Static shared cards retain their illustrated map.
Mapped active faults: GEM Global Active Faults Database, Styron & Pagani (2020), repository revision 56816508 (2021).
Provider website · Citation or usage guidance
Creative Commons Attribution-ShareAlike 4.0 International
Styron & Pagani (2020), The GEM Global Active Faults Database
Fault coverage is incomplete and uneven. Regional linework simplified at 0.01 degree tolerance; source references and original properties retained. Derived map graphics are shared under CC BY-SA 4.0. Mapped lines do not identify an earthquake rupture.
Plate boundaries: USGS service, based on Bird (2003). Service also cites plate motion by DeMets et al. (2010).
Bird (2003), An updated digital model of plate boundaries
Plates and microplates retrieved September 30, 2026. Generalized tectonic context, not a map of the fault responsible for an event.
Made with Natural Earth. Generalized 1:50m regional land and populated places, with a 1:110m global locator.
Provider website · Citation or usage guidance
Used for geographic context, not detailed coastlines or street navigation.
Earthquake data and products: U.S. Geological Survey (USGS), with the contributing agencies identified in each record.
Provider website · Citation or usage guidance
Individual contributed products may have different rights; retain their original credits.
Credit: EMSC-CSEM SeismicPortal
Provider website · Citation or usage guidance
Creative Commons Attribution 4.0 International (datasets/products)
Earthquake parameters: GEOFON, GFZ Helmholtz Centre for Geosciences, using GEVN partner-network data.
Data access: NSF National Geophysical Facility, operated by EarthScope Consortium (NSF award 2435260). Credit the originating seismic network separately.
Provider website · Citation or usage guidance
Seismic data licenses and citation requirements are network-specific.
Official alert data: NOAA National Weather Service.
Provider website · Citation or usage guidance
Earthquake Analyst transformations are independent analysis and do not imply NOAA/NWS endorsement.
Official bulletin: NOAA National Tsunami Warning Center.
Provider website · Citation or usage guidance
Retain the original issue time, area, status and expiration. Independent analysis is not an official warning.
Official bulletin: NOAA Pacific Tsunami Warning Center.
Provider website · Citation or usage guidance
Retain the original issue time, area, status and expiration. Independent analysis is not an official warning.
Historical tsunami data: NOAA National Centers for Environmental Information, NGDC/WDS Global Historical Tsunami Database.
Copernicus Emergency Management Service
Provider website · Citation or usage guidance
Keep activation and product credits. Some outputs may have dissemination restrictions or third-party rights.
Curated event metadata: NASA Earth Observatory Natural Event Tracker (EONET). Original event sources are retained separately.
Provider website · Citation or usage guidance
Linked source content has its own rights; no blanket license is asserted.
U.S. Geological Survey, Water Data for the Nation. National Water Information System data.
Regional maps combine plate boundaries with separately identified mapped active faults. The GEM compilation is pinned to a 2021 revision and has incomplete regional coverage. It does not identify which fault ruptured in any displayed earthquake. Fault linework is simplified at 0.01 degree tolerance and rounded to four decimal places for regional context; it is unsuitable for trace-level or engineering analysis.
Map graphics derived from GEM data are licensed under CC BY-SA 4.0. Retain credit and share adapted map graphics under that license. This statement concerns the derived map, not a blanket license for every linked provider product.
Full GEM license · Original dataset documentation and references · Constituent fault references and source properties · Pinned versions, retrieval receipts and transformations · Derived map linework
Catalog fields are normalized without averaging unlike magnitude types. Depth units are labelled and converted where needed. Waveform plots preserve gaps and state every processing step. Geographic shaking estimates identify the source model and version. Raw evidence, original provider records and exact source URLs remain available.
EarthScope network DOIs come from the selected station metadata. Copernicus citations identify the activation year/code and, when available, the area of interest and product. EONET source links remain attached to their events. Missing citation metadata is reported, never invented.