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Surfing Earthquakes
Annotated guide to Earthquakes on the Web
Here are a few of our favorite earthquake information sites.
Use the  buttons or scroll
down for a fuller description of each site. If you know of other
really good sites, or beg to differ in your opinion, email
us and let us know.
Sample some of our favorite earthquake sites....
1.
Wilber
(IRIS)...Seismograms from around the world for every quake available.
2.
Near-Real-Time
Earthquake Bulletin (USGS)...Listing of all the new quakes, maps for
each.
3.
Seismosurfing...The
definitive list of seismostations for the practicing seismologist.
Not geared toward newbies.
4.
Java Interface to
PDEcard Database...You box an area on the map and click for a map of
earthquakes in that area. Slick and powerful for historical quake
data.
Wilber
(IRIS)
Topic: Easy access to seismograms and hardcore earthquake data.
Affiliation: IRIS: Incorporated Research Institutions for Seismology
(Washington DC)
Date reviewed: July 18, 1998
Comments: This is just one of the many aspects of the IRIS web pages,
but it is a good one and quite accessible for the non-professional.
WILBER is an acronym for something long and unwieldy, but just enter your
name and click START. Up comes a 3-frame view (workable, but awkward
if you have a small monitor, like many K-12 schools) with lots of choices.
Upper left: choose the time period of interest. Lower frame:
map of red dots for earthquakes in chosen time interval. Click on one.
Upper right: scroll down for list of quakes from the area you clicked
on the map. Click on one of these and up pops a new browser window
with two new frames. Bottom frame: map of quake and
travel paths to available seimometers and list of some motorhead files
you could download (don't, unless you know what you're in for). Upper
frame: scroll down for a list of seismometer sites that have data for
your chosen quake. Click one of these and the bottom frame turns
to a seismo record so you can see P- and S-waves, and more (see an example
on our New Guinea page). Access to
other data (in SEED format) is available with just another click of the
mouse, but this stuff isn't for your average surfer. Good luck.
I've also found that the browser interface doesn't like you to resize your
browser window -- it changes what you're looking at, or even says there's
been an error. Just hit BACK and FORWARD and it should clear.
I've told them, so we'll see if it gets fixed. I like this easy access
to new quake seismo records.
WebDoGS WebRatings: Content: 
Interface:  Zing:
Near-Real-Time
Earthquake Bulletin (USGS)
Topic: Latest World Earthquakes, magnitudes, location maps
Affiliation: U.S. Geological Survey, National Earthquake Information
Service
Date reviewed: July 18, 1998
Comments: Scroll down for a clickable list (or scroll farther for
the clickable map) of the most recent large quakes around the world.
Click on the quake and the new page has a color map (topography) and a
map showing other quakes in the area colored by depth to focus. Nice.
WebDoGS WebRatings: Content: 
Interface: Zing:
Seismosurfing.
Topic: Links to seismology web pages, arranged geographically.
Affiliation: Washington University (St. Louis, MO)
Date reviewed: March 5, 1997
Comments: A plain list of seismo sites around the world. Kept
nicely up to date, this is geared toward motorheads in the seismo field
trying to access different sites around the world (the list is arranged
geographically). Some of the sites listed first are good for non-seismologists,
but discerning that isn't the easiest for amateurs.
WebDoGS WebRatings: Content:
Interface: Zing: 
Java
Interface to PDEcard Database.
Topic: Create maps and tables of earthquake locations, magnitudes
Affiliation: Southern Arizona Seismic Observatory (SASO), University
of Arizona
Date reviewed: July 18, 1998
Comments: This is a really nice interface into a database of historical
earthquakes. Not completely current data, but it's a great interface.
Just draw a box on the map of the world (or specify the lat and long),
then click Go and up pops a pretty color map with earthquakes plotted with
colors corresponding to hypocenter depth. You can selectively limit
the data set to specific dates, specific depth range or specific magnitudes.
Great tool for students of plate boundaries. I wish the other seismo
sites would catch on to this one, or maybe somebody give SASO some money
to get this one more up-to-date and add more flexibility.
WebDoGS WebRatings: Content:
Interface: Zing:
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