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Web services: Event catalogue

Output a catalogue of events in either QuakeML or as a CSV file from the ISC Bulletin. The output is limited to the prime (preferred) hypocentre and the magnitude values for each event, providing a condensed list of events. Events may be selected by region, time, magnitude, and depth. Returned data comprise of:

prime (preferred) hypocentre origins;
magnitude - all magnitudes or those fitting your selection (specify author, type, and/or value);

An overview of the available web services guides can be found on the web services page.

Event catalogue: URL construction

USAGE:
http://www.gxjydl.com/cgi-bin/web-db-run?<output-format><database-choice><geographic-region><time-range>[<depth-limits>][<magnitude-limits>]

Each <query-option> is comprised of one or more parameters, which are described in detail below. Each parameter needs to be separated by an ampersand (&) as shown in the examples.

Queries or parameters in square brackets ([...]) are optional.

Example query 1:

Output a catalogue of events (prime hypocentres and magnitudes) in the ISC Bulletin between 2009-02-22 15:00:00 and 2009-04-22 15:00:00 where the magnitude computed by GCMT >= 5.5

QuakeML format:

http://www.gxjydl.com/cgi-bin/web-db-run?out_format=CATQuakeML&request=COMPREHENSIVE&searchshape=GLOBAL&start_year=2009
                        &start_month=02&start_day=22&start_time=15:00:00&end_year=2009&end_month=04&end_day=22&end_time=15:00:00
                        &min_mag=5.5&req_mag_agcy=GCMT&req_mag_type=Any

CSV file:

http://www.gxjydl.com/cgi-bin/web-db-run?out_format=CATCSV&request=COMPREHENSIVE&searchshape=GLOBAL&start_year=2009
                        &start_month=02&start_day=22&start_time=15:00:00&end_year=2009&end_month=04&end_day=22&end_time=15:00:00
                        &min_mag=5.5&req_mag_agcy=GCMT&req_mag_type=Any

Example query 2:

Output a catalogue of events (prime hypocentres and magnitudes), in the Reviewed ISC Bulletin between 2009-02-22 15:00:00 and 2009-04-22 15:00:00 where the body-wave magnitude (mb) associated to the prime hypocentre >= 5.5. Limit events to within 30 degrees of Lat: 25 N; Lon: 36 E

QuakeML format:

http://www.gxjydl.com/cgi-bin/web-db-run?out_format=QuakeML&request=REVIEWED&searchshape=CIRC&ctr_lat=25&ctr_lon=36&radius=30&max_dist_units=deg
                        &start_year=2009&start_month=02&start_day=22&start_time=15:00:00&end_year=2009&end_month=04&end_day=22
                        &end_time=15:00:00
                        &min_mag=5.5&req_mag_agcy=prime&req_mag_type=MB

CSV file:

http://www.gxjydl.com/cgi-bin/web-db-run?out_format=CATCSV&request=REVIEWED&searchshape=CIRC&ctr_lat=25&ctr_lon=36&radius=30&max_dist_units=deg
                        &start_year=2009&start_month=02&start_day=22&start_time=15:00:00&end_year=2009&end_month=04&end_day=22
                        &end_time=15:00:00
                        &min_mag=5.5&req_mag_agcy=prime&req_mag_type=MB

Description of query options:

`<output-format>`
Parameter name	Possible values	Description
`out_format=`	<CATQuakeML>\|<CATCSV>	CATQuakeML (QuakeML) - XML stream. Strongly recommended for use in web services; CATCSV: A CSV formatted file - one line per event;

`<database-choice>`
Parameter name	Possible values	Description
`request=`	<COMPREHENSIVE>\|<REVIEWED>	COMPREHENSIVE: Searches the ISC Bulletin; REVIEWED: Searches the Reviewed ISC Bulletin - a subset of the ISC Bulletin, which is reviewed by ISC analysts.

`<geographic-region>`
Parameter name	Possible values	Description
`searchshape=`	<GLOBAL>\|<RECT>\|<CIRC>\|<FE>\|<POLY>	GLOBAL: Events are not restricted by region; RECT: Rectangular search; CIRC: Circular search; FE: Flinn-Engdahl region search; POLY: Customised polygon search.
Dependent parameters if: `searchshape=RECT`
`bot_lat=`	-90 to 90	Bottom latitude of rectangular region
`top_lat=`	-90 to 90	Top latitude of rectangular region
`left_lon=`	-180 to 180	Left longitude of rectangular region
`right_lon=`	-180 to 180	Right longitude of rectangular region
Dependent parameters if: `searchshape=CIRC`
`ctr_lat=`	-90 to 90	Central latitude of circular region
`ctr_lon=`	-180 to 180	Central longitude of rectangular region
`max_dist_units=`	<deg>\|<km>	Units of distance for a circular search: degrees or kilometres
`radius=`	any float or integer	Radius for circular search region 0 to 180 if `max_dist_units=deg` 0 to 20015 if `max_dist_units=km`
Dependent parameters if: `searchshape=FE`
`srn=`	1 to 50	Seismic region number for a Flinn-Engdahl region search
`grn=`	1 to 757	Geographic region number for a Flinn-Engdahl region search
Dependent parameters if: `searchshape=POLY`
`coordvals=`	lat1,lon1,lat2,lon2,lat3,lon3,lat4,lon4,lat1,lon1	Comma seperated list of coordinates for a desired polygon. Latitude needs to be before longitude. Coordinates in the western and southern hemispheres should be negative.

`<time-range>`
Parameter name	Possible values	Description
`start_year=`	1900 to 2025	Starting year for events
`start_month=`	1 to 12	Starting month for events
`start_day=`	1 to 31	Starting day for events
`start_time=`	00:00:00 to 23:59:59	Starting time for events (HH:MM:SS)
`end_year=`	1900 to 2025	Ending year for events
`end_month=`	1 to 12	Ending month for events
`end_day=`	1 to 31	Ending day for events
`end_time=`	00:00:00 to 23:59:59	Ending time for events (HH:MM:SS)

`<depth-limits>` (Optional)
Parameter name	Possible values	Description
`min_dep=`	any float or integer	Minimum depth of events (km)
`max_dep=`	any float or integer	Maximum depth of events (km)
`null_dep=`	[<on>]	If set to 'on', events with no known depth will still be output if a `min_dep` or `max_dep` is specified.

`<magnitude-limits>` (Optional)
Parameter name	Possible values	Description
`min_mag=`	any float or integer	Minimum magnitude of events
`max_mag=`	any float or integer	Maximum magnitude of events.
`null_mag=`	[<on>]	If set to 'on', events with no known magnitude values will still be output if a `min_mag` or `max_mag` is specified.
`req_mag_type=`	<Any>\|<MB>\|<MS>\|<MW>\|<ML>\|<MD>	Limit events to specific magnitude types. Please note: the selected magnitude type will search for all possible magnitudes in that category: E.g. MB will search for mb, mB, Mb, mb1mx, etc
`req_mag_agcy=`	<Any>\|<prime>\|<CODE>	Limit events to magnitudes computed by the selected agency: Any: magnitudes will not be restricted by author; prime: this will limit magnitudes to those associated with the prime (preferred) hypocentre - this is usually but not always the same author as the prime hypocentre; CODE: restricts events with magnitudes computed by a specific agency (e.g. ISC, NEIC, GCMT, JMA, etc.). See here for a full list of agencies.