sh2proc¶

Convert SeismicHandler event files to SCML.

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.

Seismic Handler	SeisComP
m	M
ml	ML
mb	mb
ms	Ms(BB)
mw	Mw
bb	mB

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.:

By other modules in an XML-base playback
Inject into the messaging system by scdispatch
Integrate into the database by scdb

Examples¶

Convert the Seismic Handler file shm.evt and writes SCML into the file sc.xml. The database connection to read inventory and configuration information is fetched from the default messaging connection.
```
sh2proc shm.evt > sc.xml
```
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 > sc.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 ---

Module 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 Options¶

sh2proc [options]

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. Example: 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¶: Set 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¶: Set 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¶: Limit the logging to a certain component. This option can be given more than once.

-s, --syslog¶: Use syslog logging backend. The output usually goes to /var/lib/messages.

-l, --lockfile arg¶: Path to lock file.

--console arg¶: Send log output to stdout.

--debug¶: Execute in debug mode. Equivalent to --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¶: Set 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 config module 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