QuakeSim and E-DECIDER generated the following products for the M5.1 La Habra, CA earthquake. Read the OpenHazards blog about this event.
Disloc results based on USGS Event Page and Moment Tensor Solution
Model of the 28 March, 2014 M 5.1 La Habra earthquake based on seismic information from the US Geological Survey. The first figure shows what a interferometric radar image may look like. The colors represent motion of the ground toward an eastward flying and northward looking instrument. The white arrows in the second figure show horizontal ground displacement. A seismicity map from the USGS earthquake page (http://earthquake.usgs.gov) shows the aftershock distribution following this event. The next step is to acquire and process data to validate and improve the results. The model is based on a fault 5 km deep that is 9 km long and 3 km wide. It dips upward at a 60° angle and has oblique horizontal slip and thrust slip of 10 cm. Maximum surface displacement for this model is 1 cm, which is at the threshold of what is detectable with NASA's UAVSAR interferometric radar airborne platform.
Version 1 was based on initial mechanism and initial shallow depth. Version 2 was based on revised depth. Version 3 changed fault dimension and slip based on aftershock zone and updated mechanism; reduced slip to allow for a larger fault.
Version 3 Model Generated from Quakesim Anonymous Disloc Service
5 km depth, 9 km length, 3 km wide, 1 cm max slip, consistent with aftershocks
Version 2 Model Generated from QuakeSim Anonymous Disloc Service
5 km depth, 8 mm max slip, consistent with aftershocks
Version 1 Model Generated from QuakeSim Anonymous Disloc Service
1.9 km depth, 5 cm max slip
E-DECIDER Earthquake Forecast Service
Record breaking forecast (29 March 2014)
ETAS (aftershock) forecast (29 March 2014)
Automatic Disloc Service Model Output
- Dip Angle=90 degrees, Strike Angle=0 degrees, strike slip, no dip slip
- Dip Angle=90 degrees, Strike Angle=45 degrees, strike slip, no dip slip
- Dip Angle=45 degrees, Strike Angle=0 degrees, dip slip, no strike slip
- Dip Angle=45 degrees, Strike Angle=90 degrees, dip slip, no strike slip