BBP Group Ridgecrest Sequence Simulations

This page documents the BBP Group activities to simulate events from the Ridgecrest Sequence.

Events Considered

• USGS Event page for M6.4 (RIDG19A)
• USGS Event page for M5.4 (RIDG19B)
• USGS Event page for M7.1 (RIDG19C)

• Source information from NGA-NHR3 preliminary release

Observational Data

• Google Earth map of NGA-NHR3-processed data available as of 2020-06-09
• Google Earth map of Vs30 at recording stations (triangles=measured and circles=inferred)

Station Selection

• For the validation, Christine selected all the stations within a closest distance (Rrup) of 125 km of all three events. This yielded ~ 50 stations, most of which have recordings for all three events.

SRC Files

M5.4

MAGNITUDE = 5.36
LAT_TOP_CENTER = 35.757359
LON_TOP_CENTER = -117.566269
DEPTH_TO_TOP = 6.0
STRIKE = 313
DIP = 81
RAKE = -165
FAULT_LENGTH = 3.0
DLEN = 0.1
FAULT_WIDTH = 3.0
DWID = 0.1
HYPO_ALONG_STK = 0.0
HYPO_DOWN_DIP = 1.5
SEED = ***needs_to_be_specified_and_different_than_other_segments_and_hypos***
MAX_FAULT_LENGTH = 3
RUPTURE_DELAY = 0.00
MOMENT_FRACTION = 1