Transcript MARIKINA VALLEY FAULT

MARIKINA VALLEY FAULT SYSTEM
PHIVOLS: MARIKINA VALLEY FAULT (RIGHT LATERAL)
CAPABLE OF TRIGGERING 7.2 MAGNETUDE EARTHQUAKE
•CARBON 14 PALEOSEISMIC STUDY REVEALED 200 – 400 YEARS
RECURRENCE INTERVAL OF MOVEMENT AT 6-7 MAGNETUDE
• THE LAST EARTHQUAKE WAS 200 YEARS BP
• DIGDIG FAULT IN NORTHERN LUZON – 7.8, 1990
• AGLUBANG RIVER FAULT, MINDORO – 7.1, 1994
EARTHQUAKE GEOLOGY – STUDY OF HISTORY, EFFECTS, AND
MECHANICS OF EARTHQUAKES ON EARTH’S CRUST;
SYNONYMOUS WITH ACTIVE TECTONICS, A TERM USED TO
DESCRIBE TECTONIC MOVEMENTS EXPECTED TO OCCUR
WITHIN A FUTURE TIME
PALEOSEISMOLOGY – TIMING, LOCATION, AND
SIZE OF PREHISTORIC EARTHQUAKES
• FOCUSES: 1) ON INSTANTANEOUS DEFORMATION
OF LANDFORMS & SEDIMENTS DURING
INDIVIDUAL EARTHQUAKES; 2) DISTRIBUTION OF
EARTHQUAKES IN SPACE & OVER TIME PERIODS OF
100 – 1,000 OF YEARS; 3) HELP UNDERSTAND
ASPECTS OF EARTHQUAKE GEOLOGY, SUCH AS
REGIONAL PATTERNS OF TECTONIC DEFORMATION
& LONG-TERN BEHAVIOR OF SPECIFIC FAULTS –
KNOWLEDGE OF WHEN, WHERE, AND HOW
OFTEN, LARGE EARTHQUAKES OCCUR
STUDY OF THE WALL OF TRENCH ACCROSS STRAND
OF FAULT