These seismograms of the Izmit, Turkey earthquake were recorded at New England PEPP seismic stations operated jointly by high schools in New England and Weston Observatory, Boston College, Weston, MA.

(For addtional information about earthquakes in New England and around the world, see:

Station BRO is a three-component station located at The Bromfield School in Harvard, MA.

BRZ = Up/Down Component
BRN = North/South Component
BRE = East/West Component


Station LSR is located at Lincoln-Sudbury Regional High School in Sudbury, MA.

Comparison of seismograms recorded at LSR and BRO:


Comparison of waveforms of P-wave recorded at LSR and BRO: