There are plenty of reasons why the Philippines is highly tectonically active. It is located near the junction of three major tectonic plates: the Pacific, __(1)__ and Indo-Australian Plates. This geodynamic zone is known as the __(2)__. Moreover, the Philippines is flanked on the east by the __(3)__, whose southwestern margin currently subducts along the __(4)__ while its northwestern margin moves along the __(5)__.
Complete the following passage with the items that would make the statements correct.
There are plenty of reasons why the Philippines is highly tectonically active. It is located near the junction of three major tectonic plates: the Pacific, __(1)__ and Indo-Australian Plates. This geodynamic zone is known as the __(2)__. Moreover, the Philippines is flanked on the east by the __(3)__, whose southwestern margin currently subducts along the __(4)__ while its northwestern margin moves along the __(5)__.
Running along the western side of the Philippines is the __(6)__, a major convergent boundary with potential to produce tsunamigenic earthquakes that could greatly affect Metro Manila and its bordering regions. This marks the zone where the __(7)__ is subducting underneath the __(8)__.
Convergence from opposing sides has resulted into a marked zone of compression that eventually formed the __(9)__, which is a __(10)__ fault zone whose major splays traverse Luzon, Visayas, and Mindanao.
Aside from the presence of various active faults, this complex convergence zone has also formed a series of volcanoes through __(11)__ volcanism. This is due to the abundance of magma sources from the oceanic crustal plates subducting underneath the Philippine archipelago.
But a noteworthy feature of the Philippine tectonic setting is the relative stability of the members of the __(12)__. This is attributed to the fact that its crustal origins could be traced to the __(13)__, a continental margin that rifted away from Mainland Eurasia millions of years ago. It is for this reason that this portion of the Philippines has a geology that is more similar to Indonesia and __(14)__ than with the rest of the country.
It is important for all of us to be aware of the tectonic setting of the Philippines, as a lot of our natural disasters are associated with these geologic implications. One example of such a devastating event is the 1976 Moro Gulf Earthquake (moment magnitude 8.0), which generated a tsunami that severely damaged nearby areas and took over 5,000 lives. It is considered the Philippines' strongest and deadliest earthquake in recent decades, and was produced by subduction of the __(15)__ along the __(16)__.
CHOICES:
Negros-Sulu Trench
Philippine Mobile Belt
island arc
Manila Trench
South China Sea Basin
left-lateral strike-slip
Western Pacific Domain
Sundaland Block
Celebes Sea Basin
Southeast Asian Tectonic Region
Philippine Trench
Pacific Plate
reverse
Philippine Sea Plate
Eurasian
Nankai-Ryukyu Trench
East Luzon Trough
Sulu Sea Basin
Philippine Fault System
Japan
Malaysia
Cotabato Trench
volcanic arc
Cotabato Trench
Palawan Microcontinental Block
right-lateral strike-slip
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