Thread: Re: Request for waveform data for the seismic events of January 6 and January 10, 1928 in Central Kenya

Josphat,

Data prior to 1960 won’t be digital (e.g., it would be on paper records) so is not likely to be contained in our digital repository.

Fro assistance with data requests, I would suggest contact data-request-help<at>lists.ds.iris.edu <data-request-help<at>lists.ds.iris.edu> whom i’ve cc’d here to reach someone with more expertise.

Best Wishes,
Michael

---------------------------------
Michael Hubenthal
Program Manager
EarthScope Consortium | Engagement
Direct: 607-237-3533
https://www.earthscope.org

On Jul 11, 2023, at 2:06 AM, Josphat Kyalo Mulwa <jkmulwa<at>uonbi.ac.ke> wrote:

Dear Michael,

Thank you very much for your prompt response to my request.

I have been able to access the website you provided. I have checked the "Assembled Network List (736) " as well as the "Seismo Archives (International Digital Earthquake Archives)". However, data for this particular earthquake in 1928 is not available as the start dates are 1960 for the former. The seismo archive has no earthquake for the year 1928.

I would like to try to use the BREQ_FAST request but there are some lines I require clarification as follows:-
(i) For the SOURCE, how do I quote/indicate ISC in the request line?
(ii) For the seismic stations, it may not be possible to know the Network Code, and the type of seismic station (SP, BB etc).

I would appreciate your guidance on these two aspects so that I can create my BREQ_FAST request.

Regards,

Josphat

On Mon, Jul 10, 2023 at 5:47 PM Michael Hubenthal <michael.hubenthal<at>earthscope.org <michael.hubenthal<at>earthscope.org>> wrote:

Dr. Josphat Mulwa,

The data you are interested in is freely available form the SAGE website. Please see the following page to select the most appropriate tool for your study. You can filter by Interface, Data Type, or Data Format

https://ds.iris.edu/ds/nodes/dmc/tools/## https://ds.iris.edu/ds/nodes/dmc/tools/#%23

Best Wishes,
Michael

---------------------------------
Michael Hubenthal
Program Manager
EarthScope Consortium | Engagement
Direct: 607-237-3533
https://www.earthscope.org https://www.earthscope.org/

On Jul 10, 2023, at 8:57 AM, Josphat Kyalo Mulwa <jkmulwa<at>uonbi.ac.ke <jkmulwa<at>uonbi.ac.ke>> wrote:

Dear Sir/Madam,

My name is Dr. Josphat Mulwa and the first author of the journal paper entitled "The seismicity in Kenya (East Africa) for the period 1906-2010: A review" which, among others, has discussed these two earthquakes as per the ISC website.

Since the seismicity review discussed in the above mentioned journal paper, I am keenly studying the major earthquakes in central, northern and south eastern Kenya as well as northwestern Uganda and South Sudan. The purpose/hypothesis of this study is to understand whether these major events are due to divergence of the East African Rift or transform movements of the NW-SE trending fault/shear zones through northern and central parts of Kenya.

The purpose of this email is to request waveform data for these two events for the seismic stations listed in ISC website used in the epicentral locations of the events. I would appreciate the waveforms in any appropriate format e.g. SAC, CSS, GSE, MSG, miniSEED, or even TXT files.

Kind regards,

Dr. Josphat Mulwa
University of Nairobi,
Department of Earth and Climate Sciences
Chiromo Campus, Riverside Drive
P.O. Box 30197 - 00100
Nairobi, Kenya

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A KEBS 9001:2015 Certified Organization, No. KEBS/QMS/RF:064 Rev. 03

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A KEBS 9001:2015 Certified Organization, No. KEBS/QMS/RF:064 Rev. 03