Make Your Own Seismogram!

The UC Berkeley Seismological Laboratory operates a network of seismometers in northern and central California. The Berkeley Digital Seismic Network is an array of high-dynamic range, broadband seismometers. Data from these instruments are transmitted continuously to UC Berkeley for processing and analysis. Using this form, you may create a seismogram for the station and channel of your choice.

You may choose from the list of available stations in the Berkeley seismological net below. (See this map of northern and central California for station locations.) Occasional telemetry problems may mean that the station data is unvailable for viewing. Or a station may no longer be active. If you encounter a problem, such as the "Cannot create seismogram -- apparently there is no data" error message, try requesting the data from an earlier or later time period.

Select Station list

Select a station: Surface stations with real time data
KNEE
AASB ADAM ALVW AONC ATP AZUL AVSP BABI BAKR BARR BAYL
BCCR BDM BIGV BKS BL67 BLAS BLUE BONV BOYR BRIB
BRIC BRIT BRK BUCI BUCR CCOR CLRV CMB DANT DCMP
DIAZ DLIK DMOR DRDG DRYC EAGL FARB GALB GASB GCKB
GHOP GRPK GTSB GUMB HALS HAPY HAS2 HATC HAYF HELL
HOPS HULI HRCH HUNT JCC JEPS JEWT JRSC KARE KCC
KETL KRUG LCOW LCUV LEGD LGMB LIND LITV LSIB MCCM
MERC MHC MILL MLKN MMI MNDO MNLT MNRC MOD MOGU
MTOS MZTA OAKV ORRS OVRO PABC PACP PESC PETL PETY
PINL PKD PRDS PORC PWOD PRDS PVSP QRDG RAMR RAVE
RBOW RIMR ROMB RUSS SAGE SANG SAO SBAR SCOT SCZ
SFRE SHEP SHWD SKGS SIGP SPAN SPRL SUTB TCHL THIS
TOLH TRAM TRIN TSCN TULE UMUN USAL VAK WEAV WEBR
WELL WENL WHCL WHMT WINE WLKR WROK WSRE YBH YUBA

Select a station: Surface stations with only archive data
ARC BDM GASB HAST HUMO JAS
JAS1 MIN MOBB PKD1 POTR THIS STAN

Select a station: Borehole broadband stations
TCAS TRAY TSCS

Select a surface station channel:
LHZ (vertical) LHN (north-south) LHE (east-west)   Long period channels - good for viewing distant earthquakes and low frequency events (< 0.5 Hz)

BHZ (vertical) BHN (north-south) BHE (east-west)   Broadband channels - good for viewing local earthquakes and high frequency events (< 20 Hz)

Help with channels

Select a borehole station channel:
LH1 (vertical) LH2 (1st horizontal) LH3 (2nd horizontal)   Long period borehole_channels - good for viewing distant earthquakes and low frequency events (< 0.5 Hz)

BH1 (vertical) BH2 (1st horizontal) BH3 (2nd horizontal)   Broadband channels - good for viewing local earthquakes and high frequency events (< 20 Hz)

Help with channels

Specify the seismogram time period:

You may specify up to 48 hours for broadband channels, and up to 40 days for long period channels.
Time is specified in Universal Time (UTC), which is PST + 8 hours, or PDT + 7 hours. You may wish to refer to a the maps of recent earthquakes hosted by the UC Berkeley Seismology Lab and the USGS in order to view specific earthquakes.


Help with dates and times
( e.g. for 2 days put 2d, for 24 hours put 24H, for 15 minutes put 15M, for 45 sec put 45S )
Help with duration

Plotting parameters:
Trace length in minutes: 1min 5min 10min 15min 20min 30min 60min
90min 120min 360min (6h) 720min (12h) 1440min (24h) 2880min (2days)
Note: for LH? channels, choose trace length 20 min or longer
( must be between 0.001 and 1000, default of 1.000 means no extra scaling, or enter "auto" for automatic scaling )
Help with scaling

Submit request or start over:

Please wait up to a minute for the data to be fetched and plotted.