def get_event_filename(event, prefix): """ Helper function generating a descriptive event filename. :param event: The event object. :param prefix: A prefix for the file, denoting e.g. the event catalog. >>> from obspy import read_events >>> event = read_events()[0] >>> print get_event_filename(event, "GCMT") GCMT_event_KYRGYZSTAN-XINJIANG_BORDER_REG._Mag_4.4_2012-4-4-14.xml """ from obspy.geodetics import FlinnEngdahl mag = event.preferred_magnitude() or event.magnitudes[0] org = event.preferred_origin() or event.origins[0] # Get the flinn_engdahl region for a nice name. fe = FlinnEngdahl() region_name = fe.get_region(org.longitude, org.latitude) region_name = region_name.replace(" ", "_") # Replace commas, as some file systems cannot deal with them. region_name = region_name.replace(",", "") return "%s_event_%s_Mag_%.1f_%s-%s-%s-%s.xml" % \ (prefix, region_name, mag.mag, org.time.year, org.time.month, org.time.day, org.time.hour)
class UtilFlinnEngdahlTestCase(unittest.TestCase): def setUp(self): self.flinnengdahl = FlinnEngdahl() self.samples_file = os.path.join(os.path.dirname(__file__), 'data', 'flinnengdahl.csv') def test_coordinates(self): with open(self.samples_file, 'r') as fh: for line in fh: longitude, latitude, checked_region = line.strip().split('\t') longitude = float(longitude) latitude = float(latitude) region = self.flinnengdahl.get_region(longitude, latitude) self.assertEqual(region, checked_region, msg="(%f, %f) got %s instead of %s" % (longitude, latitude, region, checked_region)) def test_script(self): with open(self.samples_file, 'r') as fh: # Testing once is sufficient. line = fh.readline() longitude, latitude, checked_region = line.strip().split('\t') with CatchOutput() as out: obspy_flinnengdahl([longitude, latitude]) region = out.stdout.strip() self.assertEqual(region, checked_region, msg='(%s, %s) got %s instead of %s' % (longitude, latitude, region, checked_region))
def get_event_filename(event: object, prefix: str): """ Helper function generating a descriptive event filename. :param event: The event object. :type event: object :param prefix: A prefix for the file, denoting e.g. the event catalog. :type prefix: str >>> from obspy import read_events >>> event = read_events()[0] >>> print(get_event_filename(event, "GCMT")) GCMT_event_KYRGYZSTAN-XINJIANG_BORDER_REG._Mag_4.4_2012-4-4-14.h5 """ from obspy.geodetics import FlinnEngdahl mag = event.preferred_magnitude() or event.magnitudes[0] org = event.preferred_origin() or event.origins[0] # Get the flinn_engdahl region for a nice name. fe = FlinnEngdahl() region_name = fe.get_region(org.longitude, org.latitude) region_name = region_name.replace(" ", "_") # Replace commas, as some file systems cannot deal with them. region_name = region_name.replace(",", "") return "%s_event_%s_Mag_%.1f_%s-%s-%s-%s.h5" % ( prefix, region_name, mag.mag, org.time.year, org.time.month, org.time.day, org.time.hour, )
def main(argv=None): parser = ArgumentParser(prog='obspy-flinn-engdahl', description=__doc__.strip()) parser.add_argument('-V', '--version', action='version', version='%(prog)s ' + __version__) parser.add_argument('longitude', type=float, help='Longitude (in degrees) of point. Positive for ' 'East, negative for West.') parser.add_argument('latitude', type=float, help='Latitude (in degrees) of point. Positive for ' 'North, negative for South.') args = parser.parse_args(argv) flinn_engdahl = FlinnEngdahl() print(flinn_engdahl.get_region(args.longitude, args.latitude))
def get_region(event): """ Get region for a more complete looking CMTSOLUTION file :type event: obspy.event :param event: event :rtype: str :return: Flinn Engdahl region based on lat lon """ origin = event.origins[0] fe = FlinnEngdahl() region = fe.get_region(longitude=origin.longitude, latitude=origin.latitude) return region
class UtilFlinnEngdahlTestCase(unittest.TestCase): def setUp(self): self.flinnengdahl = FlinnEngdahl() self.samples_file = os.path.join( os.path.dirname(__file__), 'data', 'flinnengdahl.csv' ) def test_coordinates(self): with open(self.samples_file, 'r') as fh: for line in fh: longitude, latitude, checked_region = line.strip().split('\t') longitude = float(longitude) latitude = float(latitude) region = self.flinnengdahl.get_region(longitude, latitude) self.assertEqual( region, checked_region, msg="(%f, %f) got %s instead of %s" % ( longitude, latitude, region, checked_region ) ) def test_script(self): with open(self.samples_file, 'r') as fh: # Testing once is sufficient. line = fh.readline() longitude, latitude, checked_region = line.strip().split('\t') with CatchOutput() as out: obspy_flinnengdahl([longitude, latitude]) region = out.stdout.strip() self.assertEqual( region, checked_region.encode('utf-8'), msg='(%s, %s) got %s instead of %s' % ( longitude, latitude, region, checked_region ) )
def get_event_and_region(event_or_id): """ get region for a more complete looking CMTSOLUTION file :param event_or_id: :return: """ if isinstance(event_or_id, str): c = Client('GEONET') cat = c.get_events(eventid=event_or_id) event = cat[0] else: event = event_or_id origin = event.origins[0] fe = FlinnEngdahl() region = fe.get_region(longitude=origin.longitude, latitude=origin.latitude) return event, region
def _read_ndk(filename, *args, **kwargs): # @UnusedVariable """ Reads an NDK file to a :class:`~obspy.core.event.Catalog` object. :param filename: File or file-like object in text mode. """ # Read the whole file at once. While an iterator would be more efficient # the largest NDK file out in the wild is 13.7 MB so it does not matter # much. if not hasattr(filename, "read"): # Check if it exists, otherwise assume its a string. try: with open(filename, "rt") as fh: data = fh.read() except Exception: try: data = filename.decode() except Exception: data = str(filename) data = data.strip() else: data = filename.read() if hasattr(data, "decode"): data = data.decode() # Create iterator that yields lines. def lines_iter(): prev_line = -1 while True: next_line = data.find("\n", prev_line + 1) if next_line < 0: break yield data[prev_line + 1:next_line] prev_line = next_line if len(data) > prev_line + 1: yield data[prev_line + 1:] # Use one Flinn Engdahl object for all region determinations. fe = FlinnEngdahl() cat = Catalog(resource_id=_get_resource_id("catalog", str(uuid.uuid4()))) # Loop over 5 lines at once. for _i, lines in enumerate(zip_longest(*[lines_iter()] * 5)): if None in lines: msg = "Skipped last %i lines. Not a multiple of 5 lines." % ( lines.count(None)) warnings.warn(msg, ObsPyNDKWarning) continue # Parse the lines to a human readable dictionary. try: record = _read_lines(*lines) except (ValueError, ObsPyNDKException): exc = traceback.format_exc() msg = ("Could not parse event %i (faulty file?). Will be " "skipped. Lines of the event:\n" "\t%s\n" "%s") % (_i + 1, "\n\t".join(lines), exc) warnings.warn(msg, ObsPyNDKWarning) continue # Use one creation info for essentially every item. creation_info = CreationInfo(agency_id="GCMT", version=record["version_code"]) # Use the ObsPy Flinn Engdahl region determiner as the region in the # NDK files is oftentimes trimmed. region = fe.get_region(record["centroid_longitude"], record["centroid_latitude"]) # Create an event object. event = Event(force_resource_id=False, event_type="earthquake", event_type_certainty="known", event_descriptions=[ EventDescription(text=region, type="Flinn-Engdahl region"), EventDescription(text=record["cmt_event_name"], type="earthquake name") ]) # Assemble the time for the reference origin. try: time = _parse_date_time(record["date"], record["time"]) except ObsPyNDKException: msg = ("Invalid time in event %i. '%s' and '%s' cannot be " "assembled to a valid time. Event will be skipped.") % \ (_i + 1, record["date"], record["time"]) warnings.warn(msg, ObsPyNDKWarning) continue # Create two origins, one with the reference latitude/longitude and # one with the centroidal values. ref_origin = Origin( force_resource_id=False, time=time, longitude=record["hypo_lng"], latitude=record["hypo_lat"], # Convert to m. depth=record["hypo_depth_in_km"] * 1000.0, origin_type="hypocenter", comments=[ Comment(text="Hypocenter catalog: %s" % record["hypocenter_reference_catalog"], force_resource_id=False) ]) ref_origin.comments[0].resource_id = _get_resource_id( record["cmt_event_name"], "comment", tag="ref_origin") ref_origin.resource_id = _get_resource_id(record["cmt_event_name"], "origin", tag="reforigin") cmt_origin = Origin( force_resource_id=False, longitude=record["centroid_longitude"], longitude_errors={ "uncertainty": record["centroid_longitude_error"] }, latitude=record["centroid_latitude"], latitude_errors={"uncertainty": record["centroid_latitude_error"]}, # Convert to m. depth=record["centroid_depth_in_km"] * 1000.0, depth_errors={ "uncertainty": record["centroid_depth_in_km_error"] * 1000 }, time=ref_origin["time"] + record["centroid_time"], time_errors={"uncertainty": record["centroid_time_error"]}, depth_type=record["type_of_centroid_depth"], origin_type="centroid", time_fixed=False, epicenter_fixed=False, creation_info=creation_info.copy()) cmt_origin.resource_id = _get_resource_id(record["cmt_event_name"], "origin", tag="cmtorigin") event.origins = [ref_origin, cmt_origin] event.preferred_origin_id = cmt_origin.resource_id.id # Create the magnitude object. mag = Magnitude(force_resource_id=False, mag=round(record["Mw"], 2), magnitude_type="Mwc", origin_id=cmt_origin.resource_id, creation_info=creation_info.copy()) mag.resource_id = _get_resource_id(record["cmt_event_name"], "magnitude", tag="moment_mag") event.magnitudes = [mag] event.preferred_magnitude_id = mag.resource_id.id # Add the reported mb, MS magnitudes as additional magnitude objects. event.magnitudes.append( Magnitude( force_resource_id=False, mag=record["mb"], magnitude_type="mb", comments=[ Comment( force_resource_id=False, text="Reported magnitude in NDK file. Most likely 'mb'." ) ])) event.magnitudes[-1].comments[-1].resource_id = _get_resource_id( record["cmt_event_name"], "comment", tag="mb_magnitude") event.magnitudes[-1].resource_id = _get_resource_id( record["cmt_event_name"], "magnitude", tag="mb") event.magnitudes.append( Magnitude( force_resource_id=False, mag=record["MS"], magnitude_type="MS", comments=[ Comment( force_resource_id=False, text="Reported magnitude in NDK file. Most likely 'MS'." ) ])) event.magnitudes[-1].comments[-1].resource_id = _get_resource_id( record["cmt_event_name"], "comment", tag="MS_magnitude") event.magnitudes[-1].resource_id = _get_resource_id( record["cmt_event_name"], "magnitude", tag="MS") # Take care of the moment tensor. tensor = Tensor(m_rr=record["m_rr"], m_rr_errors={"uncertainty": record["m_rr_error"]}, m_pp=record["m_pp"], m_pp_errors={"uncertainty": record["m_pp_error"]}, m_tt=record["m_tt"], m_tt_errors={"uncertainty": record["m_tt_error"]}, m_rt=record["m_rt"], m_rt_errors={"uncertainty": record["m_rt_error"]}, m_rp=record["m_rp"], m_rp_errors={"uncertainty": record["m_rp_error"]}, m_tp=record["m_tp"], m_tp_errors={"uncertainty": record["m_tp_error"]}, creation_info=creation_info.copy()) mt = MomentTensor( force_resource_id=False, scalar_moment=record["scalar_moment"], tensor=tensor, data_used=[DataUsed(**i) for i in record["data_used"]], inversion_type=record["source_type"], source_time_function=SourceTimeFunction( type=record["moment_rate_type"], duration=record["moment_rate_duration"]), derived_origin_id=cmt_origin.resource_id, creation_info=creation_info.copy()) mt.resource_id = _get_resource_id(record["cmt_event_name"], "momenttensor") axis = [Axis(**i) for i in record["principal_axis"]] focmec = FocalMechanism( force_resource_id=False, moment_tensor=mt, principal_axes=PrincipalAxes( # The ordering is the same as for the IRIS SPUD service and # from a website of the Saint Louis University Earthquake # center so it should be correct. t_axis=axis[0], p_axis=axis[2], n_axis=axis[1]), nodal_planes=NodalPlanes( nodal_plane_1=NodalPlane(**record["nodal_plane_1"]), nodal_plane_2=NodalPlane(**record["nodal_plane_2"])), comments=[ Comment(force_resource_id=False, text="CMT Analysis Type: %s" % record["cmt_type"].capitalize()), Comment(force_resource_id=False, text="CMT Timestamp: %s" % record["cmt_timestamp"]) ], creation_info=creation_info.copy()) focmec.comments[0].resource_id = _get_resource_id( record["cmt_event_name"], "comment", tag="cmt_type") focmec.comments[1].resource_id = _get_resource_id( record["cmt_event_name"], "comment", tag="cmt_timestamp") focmec.resource_id = _get_resource_id(record["cmt_event_name"], "focal_mechanism") event.focal_mechanisms = [focmec] event.preferred_focal_mechanism_id = focmec.resource_id.id # Set at end to avoid duplicate resource id warning. event.resource_id = _get_resource_id(record["cmt_event_name"], "event") cat.append(event) if len(cat) == 0: msg = "No valid events found in NDK file." raise ObsPyNDKException(msg) return cat
def _read_ndk(filename, *args, **kwargs): # @UnusedVariable """ Reads an NDK file to a :class:`~obspy.core.event.Catalog` object. :param filename: File or file-like object in text mode. """ # Read the whole file at once. While an iterator would be more efficient # the largest NDK file out in the wild is 13.7 MB so it does not matter # much. if not hasattr(filename, "read"): # Check if it exists, otherwise assume its a string. try: with open(filename, "rt") as fh: data = fh.read() except: try: data = filename.decode() except: data = str(filename) data = data.strip() else: data = filename.read() if hasattr(data, "decode"): data = data.decode() # Create iterator that yields lines. def lines_iter(): prev_line = -1 while True: next_line = data.find("\n", prev_line + 1) if next_line < 0: break yield data[prev_line + 1: next_line] prev_line = next_line if len(data) > prev_line + 1: yield data[prev_line + 1:] # Use one Flinn Engdahl object for all region determinations. fe = FlinnEngdahl() cat = Catalog(resource_id=_get_resource_id("catalog", str(uuid.uuid4()))) # Loop over 5 lines at once. for _i, lines in enumerate(itertools.zip_longest(*[lines_iter()] * 5)): if None in lines: msg = "Skipped last %i lines. Not a multiple of 5 lines." % ( lines.count(None)) warnings.warn(msg, ObsPyNDKWarning) continue # Parse the lines to a human readable dictionary. try: record = _read_lines(*lines) except (ValueError, ObsPyNDKException): exc = traceback.format_exc() msg = ( "Could not parse event %i (faulty file?). Will be " "skipped. Lines of the event:\n" "\t%s\n" "%s") % (_i + 1, "\n\t".join(lines), exc) warnings.warn(msg, ObsPyNDKWarning) continue # Use one creation info for essentially every item. creation_info = CreationInfo( agency_id="GCMT", version=record["version_code"] ) # Use the ObsPy Flinn Engdahl region determiner as the region in the # NDK files is oftentimes trimmed. region = fe.get_region(record["centroid_longitude"], record["centroid_latitude"]) # Create an event object. event = Event( force_resource_id=False, event_type="earthquake", event_type_certainty="known", event_descriptions=[ EventDescription(text=region, type="Flinn-Engdahl region"), EventDescription(text=record["cmt_event_name"], type="earthquake name") ] ) # Assemble the time for the reference origin. try: time = _parse_date_time(record["date"], record["time"]) except ObsPyNDKException: msg = ("Invalid time in event %i. '%s' and '%s' cannot be " "assembled to a valid time. Event will be skipped.") % \ (_i + 1, record["date"], record["time"]) warnings.warn(msg, ObsPyNDKWarning) continue # Create two origins, one with the reference latitude/longitude and # one with the centroidal values. ref_origin = Origin( force_resource_id=False, time=time, longitude=record["hypo_lng"], latitude=record["hypo_lat"], # Convert to m. depth=record["hypo_depth_in_km"] * 1000.0, origin_type="hypocenter", comments=[Comment(text="Hypocenter catalog: %s" % record["hypocenter_reference_catalog"], force_resource_id=False)] ) ref_origin.comments[0].resource_id = _get_resource_id( record["cmt_event_name"], "comment", tag="ref_origin") ref_origin.resource_id = _get_resource_id(record["cmt_event_name"], "origin", tag="reforigin") cmt_origin = Origin( force_resource_id=False, longitude=record["centroid_longitude"], longitude_errors={ "uncertainty": record["centroid_longitude_error"]}, latitude=record["centroid_latitude"], latitude_errors={ "uncertainty": record["centroid_latitude_error"]}, # Convert to m. depth=record["centroid_depth_in_km"] * 1000.0, depth_errors={ "uncertainty": record["centroid_depth_in_km_error"] * 1000}, time=ref_origin["time"] + record["centroid_time"], time_errors={"uncertainty": record["centroid_time_error"]}, depth_type=record["type_of_centroid_depth"], origin_type="centroid", time_fixed=False, epicenter_fixed=False, creation_info=creation_info.copy() ) cmt_origin.resource_id = _get_resource_id(record["cmt_event_name"], "origin", tag="cmtorigin") event.origins = [ref_origin, cmt_origin] event.preferred_origin_id = cmt_origin.resource_id.id # Create the magnitude object. mag = Magnitude( force_resource_id=False, mag=round(record["Mw"], 2), magnitude_type="Mwc", origin_id=cmt_origin.resource_id, creation_info=creation_info.copy() ) mag.resource_id = _get_resource_id(record["cmt_event_name"], "magnitude", tag="moment_mag") event.magnitudes = [mag] event.preferred_magnitude_id = mag.resource_id.id # Add the reported mb, MS magnitudes as additional magnitude objects. event.magnitudes.append(Magnitude( force_resource_id=False, mag=record["mb"], magnitude_type="mb", comments=[Comment( force_resource_id=False, text="Reported magnitude in NDK file. Most likely 'mb'." )] )) event.magnitudes[-1].comments[-1].resource_id = _get_resource_id( record["cmt_event_name"], "comment", tag="mb_magnitude") event.magnitudes[-1].resource_id = _get_resource_id( record["cmt_event_name"], "magnitude", tag="mb") event.magnitudes.append(Magnitude( force_resource_id=False, mag=record["MS"], magnitude_type="MS", comments=[Comment( force_resource_id=False, text="Reported magnitude in NDK file. Most likely 'MS'." )] )) event.magnitudes[-1].comments[-1].resource_id = _get_resource_id( record["cmt_event_name"], "comment", tag="MS_magnitude") event.magnitudes[-1].resource_id = _get_resource_id( record["cmt_event_name"], "magnitude", tag="MS") # Take care of the moment tensor. tensor = Tensor( m_rr=record["m_rr"], m_rr_errors={"uncertainty": record["m_rr_error"]}, m_pp=record["m_pp"], m_pp_errors={"uncertainty": record["m_pp_error"]}, m_tt=record["m_tt"], m_tt_errors={"uncertainty": record["m_tt_error"]}, m_rt=record["m_rt"], m_rt_errors={"uncertainty": record["m_rt_error"]}, m_rp=record["m_rp"], m_rp_errors={"uncertainty": record["m_rp_error"]}, m_tp=record["m_tp"], m_tp_errors={"uncertainty": record["m_tp_error"]}, creation_info=creation_info.copy() ) mt = MomentTensor( force_resource_id=False, scalar_moment=record["scalar_moment"], tensor=tensor, data_used=[DataUsed(**i) for i in record["data_used"]], inversion_type=record["source_type"], source_time_function=SourceTimeFunction( type=record["moment_rate_type"], duration=record["moment_rate_duration"] ), derived_origin_id=cmt_origin.resource_id, creation_info=creation_info.copy() ) mt.resource_id = _get_resource_id(record["cmt_event_name"], "momenttensor") axis = [Axis(**i) for i in record["principal_axis"]] focmec = FocalMechanism( force_resource_id=False, moment_tensor=mt, principal_axes=PrincipalAxes( # The ordering is the same as for the IRIS SPUD service and # from a website of the Saint Louis University Earthquake # center so it should be correct. t_axis=axis[0], p_axis=axis[2], n_axis=axis[1] ), nodal_planes=NodalPlanes( nodal_plane_1=NodalPlane(**record["nodal_plane_1"]), nodal_plane_2=NodalPlane(**record["nodal_plane_2"]) ), comments=[ Comment(force_resource_id=False, text="CMT Analysis Type: %s" % record["cmt_type"].capitalize()), Comment(force_resource_id=False, text="CMT Timestamp: %s" % record["cmt_timestamp"])], creation_info=creation_info.copy() ) focmec.comments[0].resource_id = _get_resource_id( record["cmt_event_name"], "comment", tag="cmt_type") focmec.comments[1].resource_id = _get_resource_id( record["cmt_event_name"], "comment", tag="cmt_timestamp") focmec.resource_id = _get_resource_id(record["cmt_event_name"], "focal_mechanism") event.focal_mechanisms = [focmec] event.preferred_focal_mechanism_id = focmec.resource_id.id # Set at end to avoid duplicate resource id warning. event.resource_id = _get_resource_id(record["cmt_event_name"], "event") cat.append(event) if len(cat) == 0: msg = "No valid events found in NDK file." raise ObsPyNDKException(msg) return cat
def get_region(lat, long): flinn_engdahl = FlinnEngdahl() return flinn_engdahl.get_region(long, lat)