obspy.core.event.source.FocalMechanism¶
- class FocalMechanism(force_resource_id=True, *args, **kwargs)[source]¶
Bases: obspy.core.event.base.__FocalMechanism
This class describes the focal mechanism of an event. It includes different descriptions like nodal planes, principal axes, and a moment tensor. The moment tensor description is provided by objects of the class MomentTensor which can be specified as child elements of FocalMechanism.
Parameters: - resource_id (ResourceIdentifier) Resource identifier of FocalMechanism.
- force_resource_id (bool, optional) If set to False, the automatic initialization of resource_id attribute in case it is not specified will be skipped.
- triggering_origin_id (ResourceIdentifier) Refers to the resource_id of the triggering origin.
- nodal_planes (NodalPlanes, optional) Nodal planes of the focal mechanism.
- principal_axes (PrincipalAxes, optional) Principal axes of the focal mechanism.
- azimuthal_gap (float, optional) Largest azimuthal gap in distribution of stations used for determination of focal mechanism. Unit: deg
- station_polarity_count (int, optional)
- misfit (float, optional) Fraction of misfit polarities in a first-motion focal mechanism determination. Decimal fraction between 0 and 1.
- station_distribution_ratio (float, optional) Station distribution ratio (STDR) parameter. Indicates how the stations are distributed about the focal sphere (Reasenberg and Oppenheimer 1985). Decimal fraction between 0 and 1.
- method_id (ResourceIdentifier) Resource identifier of the method used for determination of the focal mechanism.
- waveform_id (list of WaveformStreamID, optional) Refers to a set of waveform streams from which the focal mechanism was derived.
- evaluation_mode (str, optional) Evaluation mode of FocalMechanism. See EvaluationMode for allowed values.
- evaluation_status (str, optional) Evaluation status of FocalMechanism. See EvaluationStatus for allowed values.
- moment_tensor (MomentTensor, optional) Moment tensor description for this focal mechanism.
- comments (list of Comment, optional) Additional comments.
- creation_info (CreationInfo, optional) Creation information used to describe author, version, and creation time.
Note
For handling additional information not covered by the QuakeML standard and how to output it to QuakeML see the ObsPy Tutorial.
Attributes
__abstractmethods__ frozenset() -> empty frozenset object __dict__ __doc__ str(object=’‘) -> str __hash__ __module__ str(object=’‘) -> str __slots__ tuple() -> empty tuple __weakref__ list of weak references to the object (if defined) defaults dict() -> new empty dictionary do_not_warn_on list() -> new empty list item tuple() -> empty tuple key str(object=’‘) -> str readonly list() -> new empty list warn_on_non_default_key bool(x) -> bool Public Methods
clear copy get items keys pop If key is not found, d is returned if given, otherwise KeyError is raised. popitem as a 2-tuple; but raise KeyError if D is empty. setdefault update values Private Methods
Warning
Private methods are mainly for internal/developer use and their API might change without notice.
_cast_type Cast type of value to type required in _types dict. _pretty_str Return better readable string representation of AttribDict object. _repr_pretty_ Special Methods
__bool__ __contains__ __deepcopy__ __delattr__ __delitem__ __dir__ default dir() implementation __eq__ Two instances are considered equal if all attributes and all lists __format__ default object formatter __getattr__ Py3k hasattr() expects an AttributeError no KeyError to be __getitem__ __getstate__ __init__ __iter__ __len__ __ne__ __new__ Create and return a new object. __nonzero__ __reduce__ helper for pickle __reduce_ex__ helper for pickle __repr__ __setattr__ Custom property implementation that works if the class is __setitem__ __setstate__ __sizeof__ size of object in memory, in bytes __str__ Fairly extensive in an attempt to cover several use cases. __subclasshook__