pygmt.Figure.meca

Figure.meca(lon=None, lat=None, depth=None, spec=None, convention=None, plot_lon=None, plot_lat=None, text=None, scale=None, **kwargs)

Plot focal mechanisms.

Parameters

  • lon (int or float) – Longitude of event location.

  • lat (int or float) – Latitude of event location.

  • depth (int or float) – Depth of event location in kilometers.

  • spec (dict, 1D array, 2D array, or str) –

    Object specifying event parameters that are consistent with the specified convention. If a string specifying a filename is assigned to spec, no other parameters are required, as those parameters are assumed to exist in the file. List of required spec parameters for different conventions:

    a (Aki & Rickards): strike, dip, rake, magnitude c (global CMT): strike1, dip1, rake1, strike2, dip2, rake2, mantissa, exponent m (seismic moment tensor): mrr, mtt, mff, mrt, mrf, mtf, exponent p (partial focal mechanism): strike1, dip1, strike2, fault_type, magnitude x (principal axis): t_exponent, t_azimuth, t_plunge, n_exponent, n_azimuth, n_plunge, p_exponent, p_azimuth, p_plunge, exponent

  • convention (str) – a (Aki & Richards), c (global CMT), m (seismic moment tensor), p (partial focal mechanism), x (principal axis) Optional (auto-detected) if spec is defined as a dict.

  • plot_lon ((optional) int or float) – Longitude at which to place beachball

  • plot_lat ((optional) int or float) – Latitude at which to place beachball

  • text ((optional) str) – Text string to appear near the beachball

Examples

fig = pygmt.Figure() fig.meca(lon=239.384, lat=34.556, depth=12.0,

spec=dict(strike1=180, dip1=18, rake1=-88, strike2=0,

dip2=72, rake2=-90, mantissa=5.5, exponent=0),

region=[239, 240, 34, 35.2], projection=’m4c’)

fig.show()

fig = pygmt.Figure() fig.meca(spec=’focal_mechanisms.psmeca’) fig.show()