Answer Performance Task no. 2
Procedures:
1. Study and observe Figure 1 showing the earthquake distribution in Philippines, and
Figure 2 showing the major volcanoes in the Philippines.
2. Compare the two pictures, then answer the guide questions briefly.
Guide Questions:
1. How are earthquakes distributed in Figure 1?
2. How will you relate the location of earthquakes with the location of major
volcanoes in the Philippines?
3. What is the basis of the scientist in dividing lithosphere into several plates or
regions?
4. Based on the map, give at least five places that are prone to volcanic eruption and
earthquake
5. Why is it important for us to identify areas which are prone to earthquakes?
TOO 200 vonoters
100 200
PHILIPPINES
Sea
Pinatubos
P06
Sea
MÁMLA
ayor
Cantons
1000
Ragane
Figure 1: Map of earthquake
distribution in Philippines
Figure2: Map of the major
volcanoes in the Philippines
Procedures:
1. Study and observe Figure 1 showing the earthquake distribution in Philippines, and
Figure 2 showing the major volcanoes in the Philippines.
2. Compare the two pictures, then answer the guide questions briefly.
Guide Questions:
1. How are earthquakes distributed in Figure 1?
2. How will you relate the location of earthquakes with the location of major
volcanoes in the Philippines?
3. What is the basis of the scientist in dividing lithosphere into several plates or
regions?
4. Based on the map, give at least five places that are prone to volcanic eruption and
earthquake
5. Why is it important for us to identify areas which are prone to earthquakes?
TOO 200 vonoters
100 200
PHILIPPINES
Sea
Pinatubos
P06
Sea
MÁMLA
ayor
Cantons
1000
Ragane
Figure 1: Map of earthquake
distribution in Philippines
Figure2: Map of the major
volcanoes in the Philippines
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Answers & Comments
Answer:
from the U.S Geological Survey (USGS) and universities in Washington, Orgeon, and California. In addition to obtaining much mroe accurate earthquake locations, this study has improved our understanding of the relationship between seismicity and mapped faults in the region.Â
Improvements of the offshore earthquake locations in the Earthquake Early Warning System
NASA Astrophysics Data System (ADS)
Chen, Ta-Yi; Hsu, Hsin-Chih
2017-04-01
Since 2014 the Earthworm Based Earthquake Alarm Reporting (eBEAR) system has been operated and been used to issue warnings to schools. In 2015 the system started to provide warnings to the public in Taiwan via television and the cell phone. Online performance of the eBEAR system indicated that the average reporting times afforded by the system are approximately 15 and 28 s for inland and offshore earthquakes, respectively. The eBEAR system in average can provide more warning time than the current EEW system (3.2 s and 5.5 s for inland and offshore earthquakes, respectively). However, offshore earthquakes were usually located poorly because only P-wave arrivals were used in the eBEAR system. Additionally, in the early stage of the earthquake early warning system, only fewer stations