Examples from data analysis integrating IMS/IDC data with local seismic data in SEISAN

Tine B. Larsen, Peter Henrik Voss, Trine Dahl-Jensen, Lars Ottemöller, Jens Havskov

Research output: Contribution to conferencePoster


P2.3-441 – Examples from data analysis integrating IMS/IDC data with local seismic data in SEISAN

Author: Tine B. Larsen1
Co-authors: Peter Henrik Voss1
; Trine Dahl-Jensen1
; Lars Ottemöller2
; Jens Havskov2

1Geological Survey of Denmark and Greenland (GEUS), Denmark
2University of Bergen, Norway
Corresponding Author: tbl@geus.dk

We demonstrate here the advantages of combining data from local seismographs with IMS data in
the analysis of both local and distant events. The implementation of new IMS to SEISAN and IDC to
SEISAN links makes the integration much easier than before. These links are the results of a project
funded by the EU (CELEX 02018D0298-20200423) to facilitate the use of IMS and IDC data at NDCs
using the SEISAN package for routine seismic analysis. In this presentation we show how to import
parametric data in Nordic format and waveform data in SEED format for a combined analysis of three
events: a) an earthquake in West Greenland on 2020-09-27. The regional seismograph network in
Greenland is very sparse, and the addition of extra data is extremely valuable. b) an earthquake in
Denmark on 2018-09-16 where distant phases can add extra information about the event, and finally
c) the DPRK nuclear test on 2017-09-03 which was recorded on both seismographs in Denmark and
Greenland. All three events are relocated using the data integration.

Promotional text: Demonstrate how the new SEISAN link can improve the ability of NDCs to use
IMS/IDC data and participate in verification.
Original languageEnglish
Number of pages2
Publication statusPublished - 28 Jun 2021
EventCTBT Science and Technology Conference 2021 (SnT2021) - online / Vienna, Austria
Duration: 28 Jun 20212 Jul 2021


ConferenceCTBT Science and Technology Conference 2021 (SnT2021)
Internet address

Programme Area

  • Programme Area 3: Energy Resources

Cite this