# obspy.io.gse2.bulletin._read_gse2

`_read_gse2`(filename, inventory=None, default_network_code='XX', default_location_code=None, default_channel_code=None, res_id_prefix='smi:local', fields=None, event_point_separator=False, agency=None)

  Read a GSE2.0 bulletin file and returns an ObsPy Catalog object.

  Warning

  This function should NOT be called directly, it registers via the ObsPy `read_events()` function, call this instead.

  Parameters: | filename (str) File or file-like object in text mode. inventory (`Inventory`) Inventory used to retrieve network code, location code and channel code of stations. default_network_code (str) Default network code used if stations are not found in the inventory. default_location_code (str) Location code used if stations are not found in the inventory. default_channel_code (str) Default channel code used if stations are not found in the inventory. res_id_prefix (str) Prefix used in `ResourceIdentifier` attributes. fields (dict) dictionary of positions of input fields, used if input file is non-standard event_point_separator (bool) `True` if events are separated by point rather than 2 empty lines. agency (str) Agency that generated the file.
  Return type: | `Catalog`
  Returns: | An ObsPy Catalog object.

  Example

      >>> from obspy import read_events
      >>> default_fields = {
      ...     'line_1': {
      ...         'time': slice(0, 21),
      ...         'time_fixf': slice(22, 23),
      ...         'lat': slice(25, 33),
      ...         'lon': slice(34, 43),
      ...         'epicenter_fixf': slice(44, 45),
      ...         'depth': slice(47, 52),
      ...         'depth_fixf': slice(53, 54),
      ...         'n_def': slice(56, 60),
      ...         'n_sta': slice(61, 65),
      ...         'gap': slice(66, 69),
      ...         'mag_type_1': slice(71, 73),
      ...         'mag_1': slice(73, 77),
      ...         'mag_n_sta_1': slice(78, 80),
      ...         'mag_type_2': slice(82, 84),
      ...         'mag_2': slice(84, 88),
      ...         'mag_n_sta_2': slice(89, 91),
      ...         'mag_type_3': slice(93, 95),
      ...         'mag_3': slice(95, 99),
      ...         'mag_n_sta_3': slice(100, 102),
      ...         'author': slice(104, 112),
      ...         'id': slice(114, 122),
      ...     },
      ...     'line_2': {
      ...         'rms': slice(5, 10),
      ...         'ot_error': slice(15, 21),
      ...         's_major': slice(25, 31),
      ...         's_minor': slice(32, 38),
      ...         'az': slice(40, 43),
      ...         'depth_err': slice(49, 54),
      ...         'min_dist': slice(56, 62),
      ...         'max_dist': slice(63, 69),
      ...         'mag_err_1': slice(74, 77),
      ...         'mag_err_2': slice(85, 88),
      ...         'mag_err_3': slice(96, 99),
      ...         'antype': slice(104, 105),
      ...         'loctype': slice(106, 107),
      ...         'evtype': slice(108, 110),
      ...     },
      ...     'arrival': {
      ...         'sta': slice(0, 5),
      ...         'dist': slice(6, 12),
      ...         'ev_az': slice(13, 18),
      ...         'picktype': slice(19, 20),
      ...         'direction': slice(20, 21),
      ...         'detchar': slice(21, 22),
      ...         'phase': slice(23, 30),
      ...         'time': slice(31, 52),
      ...         't_res': slice(53, 58),
      ...         'azim': slice(59, 64),
      ...         'az_res': slice(65, 71),
      ...         'slow': slice(72, 77),
      ...         's_res': slice(78, 83),
      ...         't_def': slice(84, 85),
      ...         'a_def': slice(85, 86),
      ...         's_def': slice(86, 87),
      ...         'snr': slice(88, 93),
      ...         'amp': slice(94, 103),
      ...         'per': slice(104, 109),
      ...         'mag_type_1': slice(110, 112),
      ...         'mag_1': slice(112, 116),
      ...         'mag_type_2': slice(117, 119),
      ...         'mag_2': slice(119, 123),
      ...         'id': slice(124, 132),
      ...     },
      ... }
      >>> # Only non-standard field indexes are required
      >>> fields = {
      ...     'line_1': {
      ...         'author': slice(105, 113),
      ...         'id': slice(114, 123),
      ...     },
      ...     'line_2': {
      ...         'az': slice(40, 46),
      ...         'antype': slice(105, 106),
      ...         'loctype': slice(107, 108),
      ...         'evtype': slice(109, 111),
      ...     },
      ...     'arrival': {
      ...         'amp': slice(94, 104),
      ...     },
      ... }
      >>> catalog = read_events('/path/to/bulletin/gse_2.0_non_standard.txt',
      ... default_network_code='FR', res_id_prefix='quakeml:abc',
      ... fields=fields, event_point_separator=True)
      >>> print(catalog)
      2 Event(s) in Catalog:
      1995-01-16T07:26:52.400000Z | +39.450,  +20.440 | 3.6 mb | manual
      1995-01-16T07:27:07.300000Z | +50.772, -129.760 | 1.2 Ml | manual

### Thank you!

We would like to thank our contributors, whose efforts make this software what it is. These people have helped by writing code and documentation, and by testing. They have created and maintained this product, its associated libraries and applications, our build tools and our web sites.

#### Contributors

- Ackerley, Nick
- Allgeyer, Sebastien
- Ammon, Charles J.
- Antunes, Emanuel
- Arnarsson, Ólafur St.
- Bank, Markus
- Barsch, Robert
- Behr, Yannik
- Bernardi, Fabrizio
- Bernauer, Felix
- Bes de Berc, Maxime
- Beyreuther, Moritz
- Boltz, Shawn
- Bonaimé, Sébastien
- Carothers, Lloyd
- Chamberlain, Calum
- Chambers, Derrick
- Chen, Zhao
- Clark, Adam
- Danecek, Peter
- Egdorf, Sven
- Engels, Fabian
- Ermert, Laura
- Eulenfeld, Tom

- Fabbri, Tommaso
- Falco, Nicholas
- Fee, Jeremy
- Grellier, Clément
- Grunberg, Marc
- Hammer, Conny
- Heimann, Sebastian
- Heiniger, Lukas
- Hope, Gaute
- Igel, Heiner
- Inza, Adolfo
- Isken, Marius
- Ketchum, David
- Koymans, Mathijs
- Kremers, Simon
- Kress, Victor
- Krieger, Lars
- Krischer, Lion
- Kula, Damian
- Käufl, Paul
- Köhler, Andreas
- Lecocq, Thomas
- Leeman, John
- Legovini, Paride

- Lesage, Philippe
- Li, Yulin
- Lomax, Anthony
- Lopes, Rui L.
- MacCarthy, Jonathan
- Maggi, Alessia
- Martin, Henri
- Medlin, Andrew
- Megies, Tobias
- Meschede, Matthias
- Michelini, Alberto
- Miller, Nathaniel C.
- Morgenstern, Bernhard
- Nof, Ran Novitsky
- Panning, Mark P.
- Parker, Tom
- Pestourie, Romain
- Rapagnani, Giovanni
- Reyes, Celso
- Ringler, Adam
- Rothenhäusler, Nicolas
- Russo, Emiliano
- Sales de Andrade, Elliott

- Satriano, Claudio
- Saul, Joachim
- Scheingraber, Chris
- Schneider, Simon
- Sippl, Christian
- Snoke, Arthur
- Stange, Stefan
- Stähler, Simon C.
- Sullivan, Benjamin
- Tian, Dongdong
- Trabant, Chad
- Trani, Luca
- Uieda, Leonardo
- Walker, Andrew
- Walther, Marcus
- Wassermann, Joachim
- Williams, Mark C.
- Winkelman, Andrew
- Zaccarelli, Riccardo
- Zad, Seyed Kasra Hosseini
- Zhu, Lijun
- van Driel, Martin
- van Wijk, Kasper

#### Funds

ObsPy was partially funded by the

- German Science Foundation (DFG) via grant DFG IG 16/9-1
- German Ministry for Education and Research (BMBF), GEOTECHNOLOGIEN grant 03G0646H.
- NERA project (Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation) under the European Community's Seventh Framework Programme (FP7/2007-2013) grant agreement n° 262330
- Leibniz Institute for Applied Geophysics (LIAG)
- VERCE EU-FP7 project (no. 283543)