Two kinds of sensors are used at seismic stations: Broadband sensors that are designed to detect even the smallest ground vibrations from very small nearby earthquakes (magnitude M<1) as …

Station Monitor provides access to continuous, real-time ground motion from hundreds of locations around the globe. This data, collected by seismometers, measure motion generated …

Here we see one earthquake recorded on two stations. The earthquake occurred at 19:44 PDT April 24 (02:44 UTC, April 25), 2000, 6 km northeast of Danville, Calif, at a depth of 7 km (red …

These seismogram displays depict ground motion recorded by seismograph stations in real-time, updated every few minutes. Each plot represents 24 hours of data from one station. Read more »

Each is a record of how the ground moved at a particular seismograph station in Northern California during a 24-hour period. The plots are "magnified" according to the level of …

These are only the stations that are listed in the IRIS data base, many stations from places such as Japan and China are not included. Still, enough stations are included to give you a "feel" for …

Today’s seismometers use electromagnetic feedback to hold the mass still. This allows seismometers to be made more compact and sensitive. A seismometer placed in a borehole. …

By using seismograms from a few or many monitoring stations, one can determine the origin time and location of the event and estimate its magnitude (M)—a measure of energy released by …

Jun 13, 2019 · You may also wish to view the past 24 hours of seismic recordings from the ANMO station. This plot is updated every ten minutes, and shows primarily the high frequency seismic …

A seismic station is considered to be a permanent installation of a seismic sensor and possibly a seismic recorder. Seismic stations can also be temporary but then there is usually no …