sh2proc

Converts SeismicHandler event files to SC3ML.

Description

sh2proc converts Seismic Handler event data to SeisComP XML format. Data is read from input file or stdin if no input file is specified. The result is available on stdout.

Code mapping

Since Seismic Handler only specifies station and component codes, a mapping to SeisComP network, location and channel codes is necessary. The script assumes that the same station code is not used in different networks. In case an ambiguous id is found a warning is printed and the first network code is used. The channel and stream code is extracted from the dectecStream and detecLocid configured in the global bindings. In case no configuration module is available the first location and stream is used.

Event parameters

  • Event types given in Seismic Handler files are mapped to SeisComP event types:

    Seismic Handler

    SeisComP

    teleseismic quake

    earthquake

    regional quake

    earthquake

    local quake

    earthquake

    quarry blast

    quarry blast

    nuclear explosion

    nuclear explosion

    mining event

    mining explosion

  • The EventID given in Seismic Handler files is mapped as a comment to the event.

Magnitudes

  • Magnitude types given in Seismic Handler files are mapped to SeisComP magnitudes:

    Seismic Handler

    SeisComP

    m

    M

    ml

    ML

    mb

    mb

    ms

    Ms(BB)

    mw

    Mw

    bb

    mB

  • ML magnitudes in Seismic Handler files have no corresponding measured amplitudes. Therefore the ML station magnitudes are converted without referencing the amplitude.

  • Seismic Handler uses the phase name “L” for referring to surface waves without further specification. The phase name is kept unchanged.

Distance calculations

In Seismic Handler files distances can be given in units of km or degree but in SeisComP only degree is used. Both representations are considered for conversion. In case of double posting preference is given to the Seismic Handler values given in km due to their higher precision.

Beam parameters

Seismic Handler files provide the phase picks with theoretical, measured and corrected slowness and (back) azimuth but the pick in SeisComP knows only one value. During conversion highest preference is given to corrected values. The theoretical values are ignored.

Limitations

The following parameters from Seismic Handler files are not considered:

  • Phase Flag

  • Location Input Params

  • Reference Location Name

  • Quality Number

  • Ampl&Period Source

  • Location Quality

  • Reference Latitude

  • Reference Longitude

  • Amplitude Time

Further processing in SeisComP

The created XML files can be used in multiple ways, e.g.:

  1. By other modules in an XML-base playback

  2. Inject into the messaging system by scdispatch

  3. Integrate into the database by scdb

Examples

  1. Convert the Seismic Handler file shm.evt and writes SC3ML into the file sc3.xml. The database connection to read inventory and configuration information is fetched from the default messaging connection.

    sh2proc shm.evt > sc3.xml
    
  2. Read Seismic Handler data from stdin. Inventory and configuration information is provided through files.

    cat shm.evt | sh2proc --inventory-db=inventory.xml --config-db=config.xml > sc3.xml
    

shm.evt file format

The list of parameters supported by sh2proc may be incomplete. Read the original format and parameter description of the SeismicHandler .evt files for providing correct input files.

Example of a SeismicHandler shm.evt file with supported parameters:

Event ID               : 1170102002
Station code           : VITZ
Onset time             : 2-JAN-2017_12:25:40.415
Onset type             : emergent
Phase name             : Pg
Event Type             : mining event
Applied filter         : SHM_BP_1HZ_25HZ_3
Component              : Z
Quality number         : 2
Pick Type              : manual
Weight                 : 4
Theo. Azimuth (deg)    :   27.29
Theo. Backazimuth (deg):  207.36
Distance (deg)         :  0.122
Distance (km)          : 13.572
Magnitude ml           : 1.0
Phase Flags            : L
--- End of Phase ---


Event ID               : 1170102002
Station code           : WESF
Onset time             : 2-JAN-2017_12:25:53.714
Onset type             : emergent
Phase name             : Pg
Event Type             : mining event
Applied filter         : SHM_BP_1HZ_25HZ_3
Component              : Z
Quality number         : 2
Pick Type              : manual
Weight                 : 4
Theo. Azimuth (deg)    :  106.98
Theo. Backazimuth (deg):  287.91
Distance (deg)         :  0.807
Distance (km)          : 89.708
Magnitude ml           : 1.8
Mean Magnitude ml      : 1.1
Latitude               : +50.779
Longitude              :  +10.003
Depth (km)             :   0.0
Depth type             : (g) estimated
Origin time            :  2-JAN-2017_12:25:38.273
Region Table           : GEO_REG
Region ID              : 5326
Source region          : Tann, E of Fulda
Velocity Model         : deu
Location Input Params  : 20
Reference Location Name: CENTRE
--- End of Phase ---

Configuration

etc/defaults/global.cfg
etc/defaults/sh2proc.cfg
etc/global.cfg
etc/sh2proc.cfg
~/.seiscomp/global.cfg
~/.seiscomp/sh2proc.cfg

sh2proc inherits global options.

Command-line

Generic

-h, --help

show help message.

-V, --version

show version information

--config-file arg

Use alternative configuration file. When this option is used the loading of all stages is disabled. Only the given configuration file is parsed and used. To use another name for the configuration create a symbolic link of the application or copy it, eg scautopick -> scautopick2.

--plugins arg

Load given plugins.

-D, --daemon

Run as daemon. This means the application will fork itself and doesn’t need to be started with &.

--auto-shutdown arg

Enable/disable self-shutdown because a master module shutdown. This only works when messaging is enabled and the master module sends a shutdown message (enabled with --start-stop-msg for the master module).

--shutdown-master-module arg

Sets the name of the master-module used for auto-shutdown. This is the application name of the module actually started. If symlinks are used then it is the name of the symlinked application.

--shutdown-master-username arg

Sets the name of the master-username of the messaging used for auto-shutdown. If "shutdown-master-module" is given as well this parameter is ignored.

Verbosity

--verbosity arg

Verbosity level [0..4]. 0:quiet, 1:error, 2:warning, 3:info, 4:debug

-v, --v

Increase verbosity level (may be repeated, eg. -vv)

-q, --quiet

Quiet mode: no logging output

--component arg

Limits the logging to a certain component. This option can be given more than once.

-s, --syslog

Use syslog logging back end. The output usually goes to /var/lib/messages.

-l, --lockfile arg

Path to lock file.

--console arg

Send log output to stdout.

--debug

Debug mode: --verbosity=4 --console=1

--log-file arg

Use alternative log file.

Messaging

-u, --user arg

Overrides configuration parameter connection.username.

-H, --host arg

Overrides configuration parameter connection.server.

-t, --timeout arg

Overrides configuration parameter connection.timeout.

-g, --primary-group arg

Overrides configuration parameter connection.primaryGroup.

-S, --subscribe-group arg

A group to subscribe to. This option can be given more than once.

--content-type arg

Overrides configuration parameter connection.contentType.

--start-stop-msg arg

Sets sending of a start- and a stop message.

Database

--db-driver-list

List all supported database drivers.

-d, --database arg

The database connection string, format: service://user:pwd@host/database. "service" is the name of the database driver which can be queried with "--db-driver-list".

--config-module arg

The configmodule to use.

--inventory-db arg

Load the inventory from the given database or file, format: [service://]location

--db-disable

Do not use the database at all