These spectrogram displays depict the frequency content of a seismogram as it changes with time, updated once per minute. Each plot represents 24 hours of data from one station. Read more »
22 stations on this map
- CCRB DP1 BP 40
- LCCB DP1 BP 40
- MCB HHZ NC --
- MCS EHZ NC --
- MDH1 DP1 NC --
- MDH1 DP2 NC --
- MDH1 DP3 NC --
- MEM EHZ NC --
- MH029 GP1 SF 01
- MH029 GP2 SF 01
- MH029 GP3 SF 01
- MMNB DP1 BP 40
- PBS EHZ NC --
- PHP EHZ NC --
- PL11C HHE NC 01
- PL11C HHN NC 01
- PL11C HHZ NC 01
- PMM EHZ NC --
- PPO EHZ NC --
- SCYB DP1 BP 40
- SMNB DP1 BP 40
- VCAB DP1 BP 40