Web services: Focal mechanism solutions
Output focal mechanism solutions in either QuakeML or as a CSV file from the ISC Bulletin. Only the origins which have a focal mechanism solution are returned. There may be multiple focal mechanism solutions for each event. Events with focal mechanism solutions may be selected by region, time, magnitude, depth, and focal mechanism author. Returned data comprise of:
- Origin data (time, lat, lon, depth) for each focal mechanism solution;
- Scalar moments;
- Moment tensor components;
- Nodal planes;
- Principal axes;
An overview of the available web services guides can be found on the web services page.
Focal mechanism solutions: URL construction
USAGE:
http://m.gxjydl.com/cgi-bin/web-db-run?<output-format><database-choice><geographic-region><time-range>[<depth-limits>][<magnitude-limits>]<fmauthor-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 list of focal mechanism solutions computed by Any agency for events 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://m.gxjydl.com/cgi-bin/web-db-run?out_format=FMQuakeML&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&req_fm_agcy=Any
CSV file:
http://m.gxjydl.com/cgi-bin/web-db-run?out_format=FMCSV&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&req_fm_agcy=Any
Example query 2:
Output a list of focal mechanism solutions computed by GCMT for events, in the reviewed ISC Bulletin between 2009-02-22 15:00:00 and 2009-04-22 15:00:00 where the magnitude >= 5.5 computed by Any agency. Limit events to within 30 degrees of Lat: 25 N; Lon: 36 E
QuakeML format:
http://m.gxjydl.com/cgi-bin/web-db-run?out_format=FMQuakeML&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=Any&req_fm_agcy=GCMT
CSV file:
http://m.gxjydl.com/cgi-bin/web-db-run?out_format=FMCSV&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=Any&req_fm_agcy=GCMT
Description of query options:
<output-format> |
|||
|---|---|---|---|
| Parameter name | Possible values | Description | |
out_format= |
<FMQuakeML>|<FMCSV> |
|
|
<database-choice> |
|||
|---|---|---|---|
| Parameter name | Possible values | Description | |
request= |
<COMPREHENSIVE>|<REVIEWED> |
|
|
<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:
|
|
<fmauthor-limits> |
|||
|---|---|---|---|
| Parameter name | Possible values | Description | |
req_fm_agcy= |
<Any>|<CODE> |
Limit focal mechanism solutions to those computed by the selected agency:
|
|
