Philippine Institute of Volcanology and Seismology

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    Date: 2020-03-01 13:26:57.633000


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    Date: 2020-03-02 10:01:42.577195


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    Date: 2020-09-02 21:25:52.785385

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Seismic Activity around Bacolod-Silay International Airport

Requested from PHIVOLCS by J. Abante at 01:26 PM on Mar 01, 2020.
Purpose: Research
Date of Coverage: 01/01/2008 - 03/01/2019
Tracking no: #PHIVOLCS-966941425134

Abante 01:26 PM, Mar 01, 2020

Good day, I am a student of BS Architecture and I am conducting research vital to the preparation of my thesis research.
In connection with this, I humbly ask your permission from your good office to get and do any of the following items:

History of Seismic Activity in Negros
Seismic Condition of Negros
Seismic awareness and plans/laws and ordinances of Negros
Cost of Damages after seismic activity in Negros

Rest assured that the data I will gather will be used purely for academic purposes. You can send it in my email Thank you very much!

Montes 10:01 AM, Mar 02, 2020

Mar 02, 2020

Dear Jonnamae Abante,

Thank you for your request dated Mar 01, 2020 01:26:57 PM under Executive Order No. 2 (s. 2016) on Freedom of Information in the Executive Branch, for Seismic Activity around  Bacolod-Silay International Airport.

We received your request on Mar 01, 2020 01:26:57 PM and will respond on or before Mar 20, 2020 01:26:57 PM, in accordance with the Executive Order's implementing rules and regulations.

PHIVOLCS can provide answers to questions no. 1&2. As to the preparedness and Cost of Damages, please get in touch with the Provincial Disaster Risk Reduction and Management Offices of Negros Occidental and Negros Oriental.

Should you have any questions regarding your request, kindly contact me using the reply function on the eFOI portal at, for request with ticket number #PHIVOLCS-966941425134.

Thank you.


Angela Montes
FOI Officer

Abante 12:22 PM, Mar 03, 2020

Good day! 

Regarding on my request, i would like to ask for additional data about how active the seismic activity in Negros and the number of seismic events per year in Negros. 

Thank you so much!

Abante 08:47 PM, Mar 05, 2020

Good day! Regarding to the seismic condition, we would like to ask for the previous events on fault lines and how the seismic events  started. Also, the study about on new discovered fault tines in Negros that cause earthquakes. Thank you.

Solidum 09:25 PM, Sep 02, 2020

September 2, 2020

Dear Jonnamae Abante,


Thank you for your request dated Mar 01, 2020 01:26:57 PM under Executive Order No. 2 (s. 2016) on Freedom of Information in the Executive Branch.

Your Request

You asked for Seismic Activity around  Bacolod-Silay International Airport.

Response to Request

Your FOI request is approved. Our SOEPD staff provided you directly the information you requested to your email last 6 March 2020, 1151am. Sorry for the delay in this reply. Please get in touch directly with our staff should you have further concerns.

Your right to request a review

If you are unhappy with this response to your FOI request, you may ask us to carry out an internal review of the response by writing to DOST Secretary Fortunato T. de la Peña at Your review request should explain why you are dissatisfied with this response, and should be made within 15 calendar days from the date when you received this letter. We will complete the review and tell you the result within 30 calendar days from the date when we receive your review request.

If you are not satisfied with the result of the review, you then have the right to appeal to the Office of the President under Administrative Order No. 22 (s. 2011).

Thank you.


Dr. Renato Solidum
FOI Receiving Officer

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