1. NDC Workshop 2014
CTBT- Vienna-Austria
12-16 May 2014
Ms. Mariama MADI.M
Data Manager -CTBT Relevant Functions
and Seismic Analyst,
National Data Centre
COMOROS
Effectiveness of PTS Data and Products: NDC
Comoros seismic Analyses empowering and NPE 2013
attempt
NDC Workshop 2014

2. Outline
• Introduction
• Comoros-Islands: Position
• NDC Establishment and Benefits
• Effectiveness of PTS Data and knowledge Exchange enhancement
• NPE 2013: Challenging Practice
• Conclusion
•Suggestions

3. I-Introduction
 Most important NDC Activities through
PTS Data Efficiency
 knowledge exchange between the IDC and
NDC-Comoros regarding Local seismic Data
conversion
 NDC participation to the NPE2013 with the
seismic technology, using references W1,
W2, W3, provided by German NDC.

4. II- Comoros-Islands: Position
- Four principal islands, lying in a WNW–
ESE line at the northern end of the
Mozambique Channel
- Grand Comore (1148km2), hosting the
active “Karthala volcano” (rising up to
2361 m .al)
- Moheli (211km2; 790m al.) , dated to
2,2Ma
- Anjouan (424km2; 1595m al.) , dated to
1.5 Ma
- And Mayotte (374 km2; 660m al.),.dated
to ~5.4 Ma, which is in an advanced stage
of erosion and subsidence, and is
encircled by a barrier reef

5. III-NDC Establishment and Benefits
- NDC Team:
Mr. Ahmed
Abdoulkarim: Projects
collaborator and
Oceanography
information Manager,
National Data Centre
Ms. Mariama Madi. M
Data Manager -CTBT
Relevant Functions and
Seismic Analyst,
National Data Centre
Mr. Shafik Bafakih:
Geophysicist, and
DMX seismic Data
format Responsible
Volcano-Observatory
Mr.Moussa Mogne Ali:
Software Engineer,
Volcano-Observatory
Mr. Zainouddine
Hassani:
Radiologist,
National Data Centre
- Establishment
Established in December 2012
CNDRS
Moroni-COMOROS

6. Benefits
Accessing PTS Data and Products in a
wide range of Application:
-Through Capacity Building System installation
-From IDC Secure Website , for Data
Request (AutoDRM, Subscription, ..), ..
Knowledge Sustainability : IMS Data
and IDC Products
-Weeks training Courses
-Monthly NDC Analyst courses
Capacity of ‘Data –Products’ treatment and
related issues Introduction, on Local, Regional
and Global seismic Events for its Characteristics.
This ability reveals its necessity during:
-Visits
- Local Event:
- Clarifying Events to the Media and Providing
information to Students and Professionals
-Etc….

7. Cases of Natural Hazards among others in Comoro-Islands
 Volcanic eruptions:
Over these two last centuries, from 1808 to
January 13, 2007, Comoros recorded almost 28
known volcanic eruptions from the active Volcano
‘Karthala” in the biggest Island “Gde-Comore”,
which were mostly Magmatic, Phreato-magmatic,
Phreatic and Gas releases.
 Infrasound Hazards:
Phreato-magmatic eruptions, frequently reacting
as explosive eruptions, may impact on Energy
releases into the atmosphere and likely cause
Infrasound effects. In this regards, Karthala
volcano would be considered as logic Infrasound
Source.
 Tsunami Effects:
2004 Global and Indian ocean Sumatra Andaman
tsunami affected the four Comoro-Islands about 6
to 7m run ups.
 Seismic activities:
Recent earthquakes ( February 17 and March 12,
2014) are felt in ‘Anjouan’ Island and have been
driving people into panic.
 etc.
April 2014 Landslide caused by heavy
rain in Anjouan-Comoros

8. NDC REBs
Lat
12.1668
Lat
12.161
Lon
44.2870
Lon
44.298
Mg
ML:4.6
mb:4.3
Mg
ML: 4.8
mb:4.1
March 12, 2014
Event
IV- PTS Data and Products usefulness, and
Knowledge Exchange
1. Data analyses upgrading and comparison to REBs

9. a- File: “Winsuds290” into “c: driver” or other
drivers
b- Files Structure:
c:winsuds290
- bin
- data
- doc
- etc
- keys
- lib
c- Place of Data
-data must be saved in winsuds290data
Name file should be : YYYYMMDD*.dmx,
YYYYMMDD and dmx are important, and
(*) can be any combination of strings.
Ex: 20130201_003643_KA_904.dmx
d- Conversion
Into “windows Dos prompt” :
- Run the script for February 01, 2013:
winsuds290binconvert2css.bat
2013 02 01
e.g. of files:
2. IDC Knowledge support and Exchange
Local Data (volcano activities) Conversion to CSS Format for NDC analyses
purposes.
2.1. Process: (From Suds to GSE)

10. 7 from the 39 dmx format converted:
Only “gse” extension Files are copied into
Opensuse and analyzed in “Geotool”

11. Converted data into Geotool and Waveform Results are:
Unfiltered waveforms Filtered Waveforms

12. 3. Three month’s events assessment in vicinity of Comoro-Islands
(Jan, Feb, Mar, 2014)
Based on the IDC Standard Event Lists 3 “SEL3”

13. V-NPE 2013, NDC-Comoros result
German NDC information support
W1: Waveform detection lists of relevant
IMS Primary and Auxiliary Seismic Stations
as provided by PTS
W2: NPE Supplementary information on
“Identification of the waveform event in
FRISIA”. The European- Mediterranean
Seismology provided these parameters:
Date of Event: 2013/09/04
Time: 01:33:30,6
Lat: 53.3282
Lon: 6.8277
ML: 3.0
W3: NPE Support on the statement by the
state of FRISIA concerning the waveform
event:……………..
State of FRISIA

14. Result of Analysis:
Data requested from
Stations:
AKASG, ARCES, BRTR,
DAVOX, EKA,
ESDC,FINES,GERES, HFS,
NOA, OBN, VRAC.

15. location
State: Netherlands

16. Interpretation:
Netherlands raise the issue of susceptible Radionuclide
findings at IMS in Europe/Asia:
-Based on 04 Sep 2013 regional seismic events,
-Local Magnitude for automatic Data recorded in
Europe States are Roughly between “ML: 2 to 3”, would
give an idea regarding the aspect of these regional
events.
-Suspicious nuclear tests mostly generate ‘strong’
Amplitude spectra , which is not the case with the
‘vicinity of Groningen’ earthquake
-Furthermore, the RNMI concluded the absence of radioactive substances, while all nuclear
facilities in ‘FRISIA’ operated normally days before and after 4 Sep 2013.
This key information emphasized our decision through the NPE2013 with the seismic facility.

17. VI-Conclusion
Numerous uses are progressively fulfilled through massive exploitation of
PTS Data and Products.
This process takes action from targeting the purpose of using Data to its
usefulness results.
 The case is palpable, mentioning the example of getting samples of local
Data through “Opensus” output into Geotool software. Even if appearing as
background noises, but they are major to be taken into account if needed for
project applications like “RSTT”.
 Combining global tools (Google earth, Excel, Geotool and others..) could
raise major Benefits regarding the use of PTS Data by increasing efficient
daily, weekly, monthly or even yearly event statistics at the NDC. And the
necessity of these statistics is to reinforce the aspect of Natural hazard
awareness and early warning.
The NPE2013 remains one of the pertinent actions bringing NDCs,
especially in developing countries, to participate scientifically and
technologically to the treaty and have to play their role.

18. VII-Suggestions:
To increase systematically the performance of NDCs and experts,
important details should be improved:
Software need some updates, (e.g. Event location in Geotool: the name of
regions, towns and villages should be included in order for us Analysts to
be clear while presenting a case to people needing details during an event).
that was the case during March 12 earthquake occurred and put people
into panic in Anjouan-Comoros “Slide n08”.
Further facilities may increase the pertinence of NDCs activities, like
integrating SEISCOM, PMCC software as well, for infrasound analyses.
Small Islands like Comoros exposed to multiple hazards “Slide n07”need
to be appropriated solely with the tools (SHI technology) for a better
Natural disaster management.
Radionuclide analyses should be also integrated

19. Thank you