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The image below contains step-by-step instruction to help readers locate the “red patch,” an apparently endangered big area that lacks any coherent explanation to describe its rather ominous optics. A big chunk of land that stands out from the rest by being purple to fiery red in the color spectrums of damage, fatalities, life threatening injuries –conditions imposed by the effect of “Ground Shaking Risk” of a 7.2 magnitude earthquake. It consistently waves a red flag on how San Mateo and Lower Antipolo appear to be affected more than the surrounding areas including Greater Metro Manila.
The high resolution image can be downloaded and attached to the Meta Messenger app. Note: by orientation of the layout, the message should be read per row from left to right, then from top to bottom after each row.
Above is the detailed animated image that may take a few seconds to load. Authorities have yet to acknowledge a fault line in the upper proximity of the red patch region. It is depicted here as a broad swath of pale green that is an actual scaled up fault trace from the PHIVOLCS map. The exact location of the purported fault line and red patch area is determined by using the outline of the three-toed bird foot shape of the Laguna Bay to create a perfect alignment. In jest, i’d “adopt” the fault and call it the Mythical Tulisanes Fault Line🇵đź‡
Before the West Valley Fault and East Valley Fault came to be known together as Valley Fault System, they were referred to as MARIKINA VALLEY FAULT LINE SYSTEM (MVFS), with “Marikina” indicating the general location, but a “System?” The two segments of an active fault, the west valley and east valley, can hardly be called a system, or can they? But four segments which include another unnamed fault in what looks like an interconnection of fault segments would have the makings of a Fault System.
Early seismicity maps were clear about depicting these “extra” fault lines, while some modern and recent maps seem to miss it or shy away from emphasis.
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