Source code for openquake.hazardlib.scalerel.point

# -*- coding: utf-8 -*-
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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Module :mod:`openquake.hazardlib.scalerel.point` implements :class:`PointMSR`.
from openquake.hazardlib.scalerel.base import BaseMSR

[docs]class PointMSR(BaseMSR): """ Implements magnitude-area scaling relationship to mimic point ruptures. Independently of the magnitude value, this scaling relationship returns always a very small value (1e-4 squared km, corresponding to a 10 by 10 m square) for the median area. NOTE: This scaling-relationship is meant to be used in area and point sources to mimic point ruptures. Is not intended to be used in fault sources, as it would require a fault surface discretization step to small (less than 10 m, using an aspect ratio equal to 1) which is unfeasible for realistic applications. """
[docs] def get_median_area(self, mag, rake): """ Returns a value equal to 1e-4 squared km independently of ``mag`` and ``rake`` values. >>> point_msr = PointMSR() >>> 1e-4 == point_msr.get_median_area(4.0, 50) True >>> 1e-4 == point_msr.get_median_area(9.0, 0) True """ return 1e-4