Browsing and Requesting Earthquake Data
Types of event-related
data are event-oriented data products created shortly after an
earthquake occurs. The data is unchecked and should be considered
to be of unknown quality. This data comes from a variety of sources,
primarily from the IRIS DMC's BUD
system However, autoDRMs around
the world and direct station dial-up augment the data in SPYDER®.
SPYDER® data are accessed via WILBER II.
The DMC recognizes the fact that the most interesting and most frequently
requested data come from major earthquakes. The most notable events
are larger than a magnitude of 5.5 (Mw). For this reason, the DMC
routinely pre-assembles data from earthquakes that exceed magnitude
5.7 at any depth, and for events down to magnitude 5.5 if the depth
is greater than 100 km. These pre-assembled data sets are called
FARM Products and consist
of data collected from stations all over the world and from many
Tools for browsing and requesting data
SeismiQuery is the Web interface to our Oracle database. SeismiQuery is made
up of several search utilities, including one that allows the user to create
station and event files. Users are encouraged to search the database before
making a request in order in ensure that we have the data of interest.
JWeed is a map-based seismogram request tool. It enables the
user to select events and stations and then download the data
to their computer. JWeed is platform-independent and allows the
user to access information from remote data centers, using the
Data Handling Interface (DHI), and from local file sources that
the user has generated and downloaded.
Vase is a Java-based client application designed for viewing and extracting seismic
waveforms from the DHI waveform repository via the BUD, POND, Tier 1, and Tier
Read More »
A Web interface for searching and requesting data from our
and FARM archive. Data is delivered in SEED, miniSEED, SAC
binary or SAC ASCII files.