HRV Seismogram Archival Project: Scanned Images and Digitized Time Series (1938)

Archival Project Top Page
Status of Archival Project
Scanned Images Top Page

Choose month or day of interest. Dates with available links indicate image availability and those with highlighted background indicate digitized time series availability (see description in Components for the file format). Once the file of interest is found, please use the right button of your mouse to save the image to your computer.

JanuaryFebruaryMarch
1 1 2 3 4 5 1 2 3 4 5
2 3 4 5 6 7 8 6 7 8 9 10 11 12 6 7 8 9 10 11 12
9 10 11 12 13 14 15 13 14 15 16 17 18 19 13 14 15 16 17 18 19
16 17 18 19 20 21 22 20 21 22 23 24 25 26 20 21 22 23 24 25 26
23 24 25 26 27 28 29 27 28 27 28 29 30 31
30 31
AprilMayJune
1 2 1 2 3 4 5 6 7 1 2 3 4
3 4 5 6 7 8 9 8 9 10 11 12 13 14 5 6 7 8 9 10 11
10 11 12 13 14 15 16 15 16 17 18 19 20 21 12 13 14 15 16 17 18
17 18 19 20 21 22 23 22 23 24 25 26 27 28 19 20 21 22 23 24 25
24 25 26 27 28 29 30 29 30 31 26 27 28 29 30
JulyAugustSeptember
1 2 1 2 3 4 5 6 1 2 3
3 4 5 6 7 8 9 7 8 9 10 11 12 13 4 5 6 7 8 9 10
10 11 12 13 14 15 16 14 15 16 17 18 19 20 11 12 13 14 15 16 17
17 18 19 20 21 22 23 21 22 23 24 25 26 27 18 19 20 21 22 23 24
24 25 26 27 28 29 30 28 29 30 31 25 26 27 28 29 30
31
OctoberNovemberDecember
1 1 2 3 4 5 1 2 3
2 3 4 5 6 7 8 6 7 8 9 10 11 12 4 5 6 7 8 9 10
9 10 11 12 13 14 15 13 14 15 16 17 18 19 11 12 13 14 15 16 17
16 17 18 19 20 21 22 20 21 22 23 24 25 26 18 19 20 21 22 23 24
23 24 25 26 27 28 29 27 28 29 30 25 26 27 28 29 30 31
30 31

1937 Back to List of Years 1939 →

s1524_1938_0530_0531_LP_ZEW_f.jpg

January

Date Instrument Components
12/31 - 01/01 SP Z (1.45 GB)     Info NS (1.44 GB)     Info EW (1.44 GB)     Info
LP Z&EW (1.48 GB)     Info Z&EW (1.48 GB)     Info
12/31 - 01/02 LP NS (1.46 GB)     Info
01/02 - 01/03 SP Z (1.46 GB)     Info NS (1.44 GB)     Info EW (1.46 GB)     Info
LP Z/EW (1.5 GB)     Info Z/EW (1.5 GB)     Info
01/02 - 01/04 LP NS (1.5 GB)     Info
01/14 - 01/15 SP Z (1.41 GB)     Info
LP Z/EW (1.45 GB)     Info NS (1.42 GB)     Info Z/EW (1.45 GB)     Info
01/15
03:45-11:45
SP Z (1.39 GB)     Info NS (1.37 GB)     Info EW (1.37 GB)     Info
LP Z/EW (1.41 GB)     Info NS (1.39 GB)     Info Z/EW (1.41 GB)     Info
01/15
12:00-16:25
SP Z (1.4 GB)     Info NS (1.4 GB)     Info
"Drum worm moutning loose caused stoppage noted on preceeding 2 records"
"tightened previous to putting this record on"
EW (1.4 GB)     Info
LP Z/EW (1.41 GB)     Info NS (1.39 GB)     Info Z/EW (1.41 GB)     Info
01/15
16:25-20:40
SP Z (1.4 GB)     Info
LP Z/EW (1.4 GB)     Info Z/EW (1.4 GB)     Info
01/16 - 01/17 SP Z (1.46 GB)     Info NS (1.42 GB)     Info
01/22 - 01/23 SP Z (1.46 GB)     Info NS (1.46 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
01/22 - 01/24 LP NS (1.47 GB)     Info
01/23 - 01/24 SP Z (1.46 GB)     Info NS (1.45 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info

February

Date Instrument Components
02/01 - 02/02 SP Z (1.45 GB)     Info NS (1.44 GB)     Info EW (1.42 GB)     Info
LP Z/EW (1.44 GB)     Info NS (1.43 GB)     Info Z/EW (1.44 GB)     Info
02/04 - 02/05 SP Z (1.46 GB)     Info NS (1.46 GB)     Info EW (1.46 GB)     Info
LP Z/EW (1.5 GB)     Info Z/EW (1.5 GB)     Info
02/04 - 02/06 LP NS (1.49 GB)     Info
02/12 - 02/13 LP Z/EW (1.5 GB)     Info Z/EW (1.5 GB)     Info
02/12 - 02/14 LP NS (1.45 GB)     Info
02/13 - 02/14 SP Z (1.41 GB)     Info NS (1.42 GB)     Info EW (1.42 GB)     Info
LP Z/EW (1.45 GB)     Info Z/EW (1.45 GB)     Info
02/14 - 02/15 SP Z (1.47 GB)     Info NS (1.45 GB)     Info EW (1.46 GB)     Info
LP Z/EW (1.49 GB)     Info Z/EW (1.49 GB)     Info
02/14 - 02/16 LP NS (1.49 GB)     Info
02/18 - 02/19 SP Z (1.45 GB)     Info NS (1.44 GB)     Info EW (1.44 GB)     Info
02/23 - 02/24 SP Z (1.43 GB)     Info
02/26 - 02/27 SP Z (1.46 GB)     Info EW (1.44 GB)     Info

March

Date Instrument Components
03/03 - 03/04 SP Z (1.49 GB)     Info
03/06 - 03/08 LP NS (1.49 GB)     Info
03/07 - 03/08 SP Z (1.45 GB)     Info NS (1.45 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.46 GB)     Info Z/EW (1.46 GB)     Info
03/08 - 03/09 LP Z/EW (1.46 GB)     Info Z/EW (1.46 GB)     Info
03/09 - 03/10 SP Z (1.45 GB)     Info NS (1.44 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.45 GB)     Info Z/EW (1.45 GB)     Info
03/10 - 03/11 SP Z (1.44 GB)     Info NS (1.45 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.47 GB)     Info Z/EW (1.47 GB)     Info
03/10 - 03/12 LP NS (1.48 GB)     Info
03/11 - 03/12 SP Z (1.44 GB)     Info
03/16 - 03/18 LP NS (1.5 GB)     Info
03/17 - 03/18 SP Z (1.5 GB)     Info NS (1.49 GB)     Info EW (1.47 GB)     Info
LP Z/EW (1.49 GB)     Info Z/EW (1.49 GB)     Info
03/20 - 03/21 SP Z (1.42 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
03/22 - 03/23 SP Z (1.43 GB)     Info NS (1.42 GB)     Info EW (1.41 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
03/22 - 03/24 LP NS (1.43 GB)     Info

April

Date Instrument Components
04/01 - 04/02 SP Z (1.41 GB)     Info NS (1.4 GB)     Info EW (1.4 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
04/01 - 04/03 LP NS (1.43 GB)     Info
04/02 SP Z (1.4 GB)     Info NS (1.39 GB)     Info EW (1.39 GB)     Info
04/02 - 04/03 SP Z (1.43 GB)     Info NS (1.41 GB)     Info EW (1.42 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
04/04 - 04/05 SP Z (1.53 GB)     Info NS (1.44 GB)     Info EW (1.45 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
04/06 - 04/07 SP Z (1.53 GB)     Info NS (1.43 GB)     Info EW (1.45 GB)     Info
04/09 - 04/10 SP Z (1.6 GB)     Info NS (1.49 GB)     Info EW (1.51 GB)     Info
04/11 - 04/13 LP NS (1.42 GB)     Info
04/12 - 04/13 SP Z (1.5 GB)     Info NS (1.42 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
04/13 - 04/14 SP Z (1.5 GB)     Info NS (1.44 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
04/13 - 04/15 LP NS (1.41 GB)     Info
04/14 - 04/15 SP Z (1.5 GB)     Info NS (1.43 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
04/15 - 04/17 LP NS (1.43 GB)     Info
04/16 - 04/17 SP Z (1.5 GB)     Info NS (1.43 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
04/17 - 04/18 SP Z (1.51 GB)     Info NS (1.39 GB)     Info EW (1.39 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
04/17 - 04/19 LP NS (1.42 GB)     Info
04/18 - 04/19 SP Z (1.54 GB)     Info NS (1.44 GB)     Info EW (1.45 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
04/19 - 04/20 SP Z (1.53 GB)     Info NS (1.43 GB)     Info EW (1.45 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
04/19 - 04/21 LP NS (1.42 GB)     Info
04/21 - 04/22 SP Z (1.49 GB)     Info NS (1.42 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
04/21 - 04/23 LP NS (1.41 GB)     Info
04/22 - 04/23 SP Z (1.51 GB)     Info NS (1.43 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
04/24 - 04/25 SP Z (1.47 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
04/25 - 04/26 SP Z (1.53 GB)     Info NS (1.43 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
04/25 - 04/27 LP NS (1.41 GB)     Info
04/26 - 04/27 SP Z (1.48 GB)     Info NS (1.43 GB)     Info EW (1.43 GB)     Info

May

Date Instrument Components
05/01 - 05/03 LP NS (1.4 GB)     Info
05/02 - 05/03 SP Z (1.51 GB)     Info NS (1.42 GB)     Info
LP Z/EW (1.42 GB)     Info EW (1.43 GB)     Info
The information at the back of the seismogram indicates LP, but the data suggest SP
05/04 - 05/05 SP Z (1.49 GB)     Info NS (1.43 GB)     Info
LP EW (1.43 GB)     Info
The information at the back of the seismogram indicates LP, but the data suggest SP
05/05 - 05/07 LP NS (1.42 GB)     Info
05/06 - 05/07 SP Z (1.52 GB)     Info NS (1.44 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
05/07 - 05/09 LP NS (1.41 GB)     Info
05/08 - 05/09 SP Z (1.47 GB)     Info NS (1.41 GB)     Info EW (1.41 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
05/11 - 05/12 SP Z (1.5 GB)     Info NS (1.42 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
05/11 - 05/13 LP NS (1.43 GB)     Info
05/12 - 05/13 SP Z (1.54 GB)     Info NS (1.43 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.45 GB)     Info Z/EW (1.45 GB)     Info
05/13 - 05/15 LP NS (1.41 GB)     Info
05/14 - 05/15 SP Z (1.53 GB)     Info NS (1.44 GB)     Info EW (1.45 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
05/16 - 05/17 SP Z (1.42 GB)     Info NS (1.44 GB)     Info EW (1.46 GB)     Info
05/17 - 05/18 SP Z (1.42 GB)     Info NS (1.44 GB)     Info EW (1.44 GB)     Info
05/19 - 05/20 SP Z (1.48 GB)     Info NS (1.42 GB)     Info EW (1.42 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
05/22 - 05/23 SP Z (1.5 GB)     Info NS (1.43 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
05/26 - 05/27 SP Z (1.49 GB)     Info NS (1.43 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
05/27 - 05/28 SP Z (1.49 GB)     Info NS (1.43 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
05/28 - 05/29 SP Z (1.5 GB)     Info NS (1.43 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
05/30 - 05/31 SP Z (1.54 GB)     Info NS (1.44 GB)     Info EW (1.46 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
05/30 - 06/01 LP NS (1.41 GB)     Info

June

Date Instrument Components
05/30 - 06/01 LP NS (1.41 GB)     Info
06/01 - 06/02 SP Z (1.5 GB)     Info NS (1.42 GB)     Info EW (1.43 GB)     Info
06/04 - 06/05 SP Z (1.48 GB)     Info NS (1.41 GB)     Info EW (1.42 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
06/04 - 06/06 LP NS (1.4 GB)     Info
06/07 - 06/08 SP Z (1.53 GB)     Info NS (1.42 GB)     Info EW (1.44 GB)     Info
06/10 - 06/11 SP Z (1.47 GB)     Info NS (1.41 GB)     Info EW (1.41 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
06/10 - 06/12 LP NS (1.4 GB)     Info
06/14 - 06/15 SP Z (1.51 GB)     Info NS (1.42 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
06/14 - 06/16 LP NS (1.39 GB)     Info
06/15 - 06/16 SP Z (1.5 GB)     Info NS (1.41 GB)     Info EW (1.42 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
06/17 - 06/18 SP Z (1.51 GB)     Info NS (1.45 GB)     Info EW (1.44 GB)     Info
06/20 - 06/21 SP Z (1.49 GB)     Info NS (1.43 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
06/20 - 06/22 LP NS (1.42 GB)     Info
06/21 - 06/22 SP Z (1.51 GB)     Info NS (1.43 GB)     Info EW (1.44 GB)     Info
06/22 - 06/23 SP Z (1.5 GB)     Info NS (1.43 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
06/22 - 06/24 LP NS (1.41 GB)     Info
06/23 - 06/24 SP Z (1.5 GB)     Info NS (1.43 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
06/24 - 06/26 LP NS (1.41 GB)     Info
06/25 - 06/26 SP Z (1.53 GB)     Info NS (1.43 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
06/28 - 06/29 SP Z (1.57 GB)     Info NS (1.44 GB)     Info EW (1.46 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
06/28 - 06/30 LP NS (1.43 GB)     Info
06/30 - 07/01 SP Z (1.5 GB)     Info NS (1.42 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
06/30 - 07/02 LP NS (1.39 GB)     Info

July

Date Instrument Components
06/30 - 07/01 SP Z (1.5 GB)     Info NS (1.42 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
06/30 - 07/02 LP NS (1.39 GB)     Info
07/02 - 07/03 SP Z (1.51 GB)     Info NS (1.41 GB)     Info EW (1.43 GB)     Info
07/04 - 07/05 SP Z (1.49 GB)     Info NS (1.42 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
07/04 - 07/06 LP NS (1.41 GB)     Info
07/05 - 07/06 SP Z (1.51 GB)     Info NS (1.42 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
07/07 - 07/08 SP Z (1.49 GB)     Info NS (1.42 GB)     Info EW (1.43 GB)     Info
07/11 - 07/12 LP Z/EW (1.4 GB)     Info Z/EW (1.4 GB)     Info
07/13 - 07/14 SP Z (1.49 GB)     Info NS (1.42 GB)     Info EW (1.41 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
07/14 - 07/15 SP Z (1.53 GB)     Info NS (1.43 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
07/14 - 07/16 LP NS (1.4 GB)     Info
07/18 - 07/20 LP NS (1.39 GB)     Info
07/19 - 07/20 SP Z (1.49 GB)     Info NS (1.44 GB)     Info EW (1.41 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
07/23 - 07/24 LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
07/24 - 07/25 SP Z (1.5 GB)     Info NS (1.44 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
07/24 - 07/26 LP NS (1.42 GB)     Info
07/27 - 07/28 SP Z (1.52 GB)     Info NS (1.46 GB)     Info EW (1.45 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
07/28 - 07/29 SP Z (1.51 GB)     Info NS (1.45 GB)     Info EW (1.44 GB)     Info
07/28 - 07/30 LP NS (1.42 GB)     Info
07/29 - 07/30 SP Z (1.52 GB)     Info NS (1.44 GB)     Info EW (1.42 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info

August

Date Instrument Components
08/02 - 08/03 SP Z (1.49 GB)     Info NS (1.43 GB)     Info EW (1.42 GB)     Info
08/03 - 08/04 SP Z (1.48 GB)     Info NS (1.44 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
08/03 - 08/05 LP NS (1.41 GB)     Info
08/06 - 08/07 SP Z (1.48 GB)     Info NS (1.44 GB)     Info EW (1.43 GB)     Info
08/07 - 08/08 SP Z (1.48 GB)     Info NS (1.43 GB)     Info EW (1.42 GB)     Info
08/07 - 08/09 LP NS (1.42 GB)     Info
08/08 - 08/09 LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
08/09 - 08/10 SP Z (1.52 GB)     Info NS (1.45 GB)     Info EW (1.44 GB)     Info
08/14 - 08/15 SP Z (1.43 GB)     Info NS (1.39 GB)     Info EW (1.39 GB)     Info
08/15 - 08/16 SP Z (1.5 GB)     Info NS (1.43 GB)     Info EW (1.4 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
08/15 - 08/17 LP NS (1.42 GB)     Info
08/17 SP Z (1.54 GB)     Info NS (1.44 GB)     Info
08/17 - 08/18 SP Z (1.59 GB)     Info NS (1.44 GB)     Info EW (1.4 GB)     Info
LP Z/EW (1.42 GB)     Info NS (1.41 GB)     Info Z/EW (1.42 GB)     Info
08/18 - 08/19 SP Z (1.59 GB)     Info
08/18 - 08/20 LP NS (1.41 GB)     Info
08/19 - 08/20 SP Z (1.52 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
08/20 - 08/21 SP Z (1.5 GB)     Info EW (1.4 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
08/20 - 08/22 LP NS (1.41 GB)     Info
08/24 - 08/25 SP Z (1.46 GB)     Info NS (1.44 GB)     Info EW (1.45 GB)     Info
LP Z/EW (1.45 GB)     Info Z/EW (1.45 GB)     Info
08/24 - 08/26 LP NS (1.42 GB)     Info
08/27 - 08/28 SP Z (1.43 GB)     Info NS (1.42 GB)     Info EW (1.42 GB)     Info
08/28 - 08/30 LP NS (1.41 GB)     Info
08/29 - 08/30 SP Z (1.42 GB)     Info NS (1.42 GB)     Info EW (1.42 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
08/30 - 08/31 SP Z (1.43 GB)     Info NS (1.4 GB)     Info EW (1.41 GB)     Info
LP Z/EW (1.4 GB)     Info Z/EW (1.4 GB)     Info
08/30 - 09/01 LP NS (1.4 GB)     Info
08/31 - 09/01 SP Z (1.46 GB)     Info NS (1.42 GB)     Info EW (1.42 GB)     Info
LP Z/EW (1.4 GB)     Info Z/EW (1.4 GB)     Info

September

Date Instrument Components
08/30 - 09/01 LP NS (1.4 GB)     Info
08/31 - 09/01 SP Z (1.46 GB)     Info NS (1.42 GB)     Info EW (1.42 GB)     Info
LP Z/EW (1.4 GB)     Info Z/EW (1.4 GB)     Info
09/05 - 09/07 LP NS (1.43 GB)     Info
09/06 - 09/07 SP Z (1.45 GB)     Info NS (1.42 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
09/07 - 09/08 SP Z (1.46 GB)     Info NS (1.44 GB)     Info EW (1.45 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
09/07 - 09/09 LP NS (1.44 GB)     Info
09/08 - 09/09 LP Z/EW (1.45 GB)     Info Z/EW (1.45 GB)     Info
09/09 - 09/10 SP Z (1.43 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
09/10 - 09/11 SP Z (1.43 GB)     Info NS (1.42 GB)     Info EW (1.43 GB)     Info
09/11 - 09/12 SP Z (1.44 GB)     Info NS (1.45 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
09/11 - 09/13 LP NS (1.41 GB)     Info
09/12 - 09/13 SP Z (1.45 GB)     Info
09/17 - 09/18 SP Z (1.47 GB)     Info NS (1.43 GB)     Info EW (1.45 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
09/17 - 09/19 LP NS (1.43 GB)     Info
09/19 - 09/21 LP NS (1.43 GB)     Info
09/20 - 09/21 SP Z (1.48 GB)     Info NS (1.43 GB)     Info EW (1.45 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
09/21 - 09/22 SP Z (1.41 GB)     Info NS (1.4 GB)     Info EW (1.4 GB)     Info
LP Z/EW (1.41 GB)     Info NS (1.39 GB)     Info Z/EW (1.41 GB)     Info
due to hurricane (the Great New England Hurricane), the station lost power and the seismometers were down until October 6th.

October

Date Instrument Components
10/08 - 10/10 LP NS (1.43 GB)     Info
10/09 - 10/10 SP Z (1.46 GB)     Info NS (1.42 GB)     Info EW (1.42 GB)     Info
LP Z/EW (1.45 GB)     Info Z/EW (1.45 GB)     Info
10/10 - 10/11 SP Z (1.43 GB)     Info NS (1.42 GB)     Info EW (1.41 GB)     Info
LP Z/EW (1.42 GB)     Info Z/EW (1.42 GB)     Info
10/10 - 10/12 LP NS (1.44 GB)     Info
10/11 - 10/12 SP Z (1.43 GB)     Info NS (1.42 GB)     Info EW (1.41 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
10/16 - 10/18 LP NS (1.43 GB)     Info
10/17 - 10/18 SP Z (1.4 GB)     Info
Light burned out (short record)
NS (1.45 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
10/18 - 10/19 SP NS (1.43 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
10/20 - 10/21 SP Z (1.5 GB)     Info NS (1.44 GB)     Info EW (1.44 GB)     Info
10/28 - 10/30 LP NS (1.45 GB)     Info
10/29 - 10/30 SP Z (1.54 GB)     Info NS (1.46 GB)     Info EW (1.46 GB)     Info
LP Z/EW (1.47 GB)     Info Z/EW (1.47 GB)     Info

November

Date Instrument Components
11/01 - 11/02 SP Z (1.47 GB)     Info
LP Z/EW (1.45 GB)     Info Z/EW (1.45 GB)     Info
11/01 - 11/03 LP NS (1.43 GB)     Info
11/07 - 11/08 SP Z (1.47 GB)     Info NS (1.42 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
11/11 SP Z (1.43 GB)     Info
11/11 - 11/13 LP NS (1.41 GB)     Info
11/12 - 11/13 SP Z (1.44 GB)     Info NS (1.44 GB)     Info EW (1.43 GB)     Info
LP Z/EW (1.41 GB)     Info Z/EW (1.41 GB)     Info
11/13 - 11/14 SP Z (1.54 GB)     Info NS (1.45 GB)     Info EW (1.48 GB)     Info
LP Z/EW (1.45 GB)     Info Z/EW (1.45 GB)     Info
11/13 - 11/15 LP NS (1.46 GB)     Info
JPG (50 MB)   SAC (5 MB)
11/15 - 11/16 SP Z (1.48 GB)     Info NS (1.46 GB)     Info EW (1.44 GB)     Info
LP Z/EW (1.43 GB)     Info Z/EW (1.43 GB)     Info
11/18 - 11/19 SP Z (1.52 GB)     Info NS (1.45 GB)     Info EW (1.47 GB)     Info
LP Z/EW (1.45 GB)     Info Z/EW (1.45 GB)     Info
11/20 - 11/22 LP NS (1.46 GB)     Info
11/21 - 11/22 SP Z (1.49 GB)     Info NS (1.44 GB)     Info EW (1.46 GB)     Info
LP Z/EW (1.44 GB)     Info Z/EW (1.44 GB)     Info
11/28 - 11/30 LP NS (1.5 GB)     Info
11/29 - 11/30 SP Z (1.53 GB)     Info NS (1.46 GB)     Info EW (1.49 GB)     Info
LP Z/EW (1.5 GB)     Info Z/EW (1.5 GB)     Info
11/30 - 12/02 LP NS (1.47 GB)     Info

December

Date Instrument Components
11/30 - 12/02 LP NS (1.47 GB)     Info
12/01 - 12/02 SP Z (1.54 GB)     Info NS (1.46 GB)     Info EW (1.5 GB)     Info
LP Z/EW (1.5 GB)     Info Z/EW (1.5 GB)     Info
12/08 - 12/09 SP Z (1.49 GB)     Info NS (1.43 GB)     Info EW (1.47 GB)     Info
LP Z/EW (1.47 GB)     Info Z/EW (1.47 GB)     Info
12/08 - 12/10 LP NS (1.48 GB)     Info
12/16 - 12/17 SP Z (1.46 GB)     Info NS (1.42 GB)     Info EW (1.45 GB)     Info
LP Z/EW (1.47 GB)     Info Z/EW (1.47 GB)     Info
12/16 - 12/18 LP NS (1.46 GB)     Info
12/18 - 12/20 LP NS (1.45 GB)     Info
12/19 - 12/20 SP Z (1.5 GB)     Info NS (1.44 GB)     Info EW (1.45 GB)     Info
LP Z/EW (1.45 GB)     Info Z/EW (1.45 GB)     Info
12/20 - 12/21 SP Z (1.51 GB)     Info NS (1.44 GB)     Info EW (1.48 GB)     Info
LP Z/EW (1.49 GB)     Info Z/EW (1.49 GB)     Info
12/20 - 12/22 LP NS (1.46 GB)     Info
12/27 - 12/28 SP Z (1.57 GB)     Info NS (1.48 GB)     Info EW (1.5 GB)     Info

Date
Dates are given as "m1/d1 - m2/d2" where m1 is the starting month, d1 is the starting day, m2 is the ending month, and d2 is the ending day. For the exact time of the start and end of the record, download the information (back side of seismogram) file that accompanies each seismogram file.
Typically, each recording covers about one day except for some single-component long-period recordings that cover two days.

Instrument
The instrument type is either "SP" for short-period recording and "LP" for long-period recording.

Components
Original Images: The components are "Z" for vertical, "NS" for north-south, and "EW" for east-west. Some of the long-period recordings have two components, e.g., "Z/EW". The "Z/EW" entries are repeated in the first and third columns under "Components" and they are identical copies.
The link with each component, e.g., Z, allows the original TIFF image of the seismic recording to be downloaded (1200 dpi in colour for front, 400 dpi in grey for back). Note that the size of the file given in brackets can be large and may take a while to download. The image of the back side of each recording (often showing more detailed information about the recording such as the start and end times) can be obtained from the "Info" link. The information files are typically 60 MB.
Reduced Images: The link to "JPG" provides images that have been converted to JPEG format with much coarser resolution (hence smaller file sizes).
Digitized Time Series: The link to "SAC" can be used to download a zip file containing all SAC files associated with the specific image. There are typically multiple SAC files in the zip file, and each SAC file corresponds to a line of recording (e.g., about 1 hour for long-period recordings). They have been generated with the DigitSeis software, and some SAC files contain NaN entries, resulting in a blank screen when they are loaded and visualized in SAC software. One can work around this problem by setting the vertical axis to be between -200 and 200 (i.e., "ylim -200 200") and then adjusting the limits for the specific trace.


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Department of Earth and Planetary Sciences / Harvard University / 20 Oxford Street / Cambridge / MA 02138 / U.S.A. / Telephone: +1 617 495 2350 / Fax: +1 617 496 1907 / Email: reilly@eps.hartvard.edu