Maps by OBSN

12/10/2025

Map of Philippine Volcanoes

This map of Philippine volcanoes was originally based on the list by the Phivolcs [1] with some included from the Global Volcanism Program [2]

[1] tinyurl.com/ph-volcanoes-phivolcs
[2] tinyurl.com/ph-volcanoes-gvp

12/10/2025

Can we predict earthquakes?

No, we can't.

Earthquakes recorded in the Philippines from July 1 – 31, 2022 featuring the July 27 magnitude 7.0 earthquake in Abra province.

Source of earthquake data: Phivolcs
Map layout and design: QGIS 3.22.4

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Can we predict earthquakes?

No, we can't [1] [2]. It is not currently possible to predict exactly when and where an earthquake will occur, nor how large it will be [3] [4].

[1] https://on.doi.gov/3QqazKJ
[2] https://bit.ly/3QpLjnN
[3] https://bit.ly/3QDfkjM
[4] https://bit.ly/3C7dvb2

01/10/2025

Cebu is not known to be as quake-prone — until the September 30 earthquake

https://www.rappler.com/science/earth-space/cebu-not-known-earthquake-prone-until-september-30-2025/

Earthquakes in the Philippines from December 16, 1910 to November 9, 2021 (with a magnitude of 3.0 or higher) [1].

The Philippines lies along the western edge of the Pacific Ring of Fire, a region characterized by active volcanoes [2] and frequent earthquakes.

Map design and layout made in QGIS 3.16.11-Hannover. No other software used.

Sources:
[1] Earthquake data:
https://earthquake.usgs.gov/
[2] Volcanoes, faults, trenches
https://www.phivolcs.dost.gov.ph/

https://www.fb.com/MapsByOBSN/photos/a.113670464096964/471057671691573/

24/09/2025

Sometimes I get bored with “normal” map layouts, so here’s one to mess with your perception of Luzon Island, Philippines.

This view, for example, could very well be the POV of a typhoon that has just entered the PAR and is about to make landfall somewhere 🌪️

After all, nature doesn’t care about borders, and it doesn’t care about map orientation. Or does it?

Hi-res versions of the maps are available here 👇
https://bit.ly/LuzonMounts2025

Stay safe, everyone.

Maps made with QGIS

20/09/2025

"Hindi pala climate change ang magpapalubog sa Pilipinas..."

Reimagining the Philippines as a submerged archipelago. Will the world be ever underwater if all of the Earth's ice melted and drained into the ocean?

Disclaimer:
This map is a work of fiction. Or is it?

Data: GEBCO
Software: