Naenam Fault Array 2020

Participants of the campaign

deployment

Participants of the deployment in August 2020. From left, Byeong Seok Ahn, Sangwoo Han, Hyunsun Kang, Min Seong Seo, Joa Kwon, Yeongjae Choi, Min Hyug Koh, Dabeen Heo, Ki Baek Kwon, Gyeongdon Chai, Jun Yong Park, Jaeseoung Han, Young Oh Son, Yunsun Jung, YoungHee Kim, and Hobin Lim who is taking this picture.

Seoul National University, Republic of Korea

Pukyong National University, Republic of Korea

Korea University, Republic of Korea

Map of the stations

Station names are ascending order along the array from west to east.

Added Gyeongju Hi-density Broadband Seismic Network (2021-09-06)

Expected teleseismic signals (2020/11/20-2020/12/20, M>5.5, Dist<100deg, N=20)

expected

(https://earthquake.usgs.gov/)

Local earthquakes

local01.csv (https://necis.kma.go.kr/, accessed on 27 January 2021)

Metadata

meta09.xlsx (updated on 16 Jun 2021)

Instrument response files

resp06.zip (9 June 2021) Mismatched units between stages are fixed.

You might need to multiply -1 for the exact polarity for all the Z, E, and N components. (2021-09-07, resp06.zip)

RESP.NN.215A.EP*, RESP.NN.215D.EP*, and RESP.NN.215C.EP* are missing in resp06.zip... Let me make them soon. (2021-09-06)

SAC) transfer from evalresp fname ./resp05/RESP.NN.580D.DPZ freq f1 f2 f3 f4 to vel [output unit = nm/s]
SAC) mul -1

SAC) transfer from evalresp fname ./resp05/RESP.NN.580D.DPZ freq f1 f2 f3 f4 to none [output unit = nm]
SAC) mul -1

A factor of 1e9 to convert meter into nanometer is embedded internally in the program SAC (101.6a; 102.0), not in the response files uproaded. Try to find 'unitScaleFact' in the source code of SAC (e.g., grep -ri 'unitScaleFact' ./*). This is, I think, confusing when you use RESP or SACPZ, formats of the response files, interchangeably. Using the SACPZ format does not behave like that. See also SAC manual for more information.

Previous versions

resp05.zip(22 Jan 2021)

STP client (data providing program)

[2021-02-08] Early deployed stations (*A, *B, *C) are ready.

[2021-01-22] Main stations (*D) are ready.

(account required)

Orientation correction (?)

Availability

Deployment log

Publications

Lim, H., Kang, H., Koh, M. H., Kwon, J., Park, J. Y., Seo, M.-S., Son, Y. O., Han, S., Kang, T.-S., Rhie, J., Kim, K.-H., Kim, Y., Ree, J.-H., Kwon, K. B., Han, J., Ahn, B. S., Chai, G., Choi, Y., Heo, D., & Jung, Y. (2021). Deployment of the linear array with geophones on the fault zone of the 2016 Mw 5.5 Gyeongju earthquake. Journal of the Geological Society of Korea, 57(5), 741–746. https://doi.org/10.14770/jgsk.2021.57.5.741

Education

Backup of this site

This site is backed up at https://doi.org/10.5281/zenodo.4661926

Site administrator

Hobin Lim

Postdoc at Seoul National University

(now at Korea Institute of Geoscience and Mineral Resources)

hbim76(a)gmail.com; HBL(a)kigam.re.kr