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Image of 33,000+ stacked 3 comp. broadband seismograms from 979 earthquakes with Mw>5.6 and depth <50 km that occurred between 1988
and 1994. Seismic phases are shown with different colors corresponding to their polarization. Blue shows vertical motion, green is radial-horizontal motion and red shows transverse-horizontal
motion.
Scientists at the Institute of Geophysics and Planetary Physics are
at the forefront of both experimental and theoretical seismology. We
operate Project IDA, a global network of 33 broadband seismometers
that forms a key part of the Global Seismic Network. We also operate two smaller seismic arrays in the tectonically active regions of southern California and Kyrgyzstan.
Our marine seismology group conducts frequent seagoing experiments
along oceanic ridges and fracture zones, and builds, maintains and
deploys a national NSF funded Ocean Bottom Seismograph Instrument
Pool (OBSIP).
Building on our traditional strengths in normal mode seismology and
inverse theory, IGPP seismologists have been leaders in the effort to
develop three-dimensional models of the structure of Earth's
mantle and core.
Other research topics include applying stacking techniques to image
seismic discontinuities in the upper mantle, developing new methods to
improve the accuracy of earthquake locations, realtime analysis
and presentation of seismic data, and experiments and research to assist in the monitoring of nuclear test ban treaties.
| People |
Projects |
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- Seismic networks and arrays
- Global Seismology
- Marine Seismology
- Software
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