Changes for page FDSN Guide

Last modified by robert on 2025/03/24 12:02

From version 1.3
edited by robert
on 2025/03/24 10:07
Change comment: There is no comment for this version
To version 2.2
edited by robert
on 2025/03/24 10:17
Change comment: There is no comment for this version

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... ... @@ -27,7 +27,7 @@
27 27  
28 28  = Station Metadata =
29 29  
30 -Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
30 +Information such as site locations, sensor and data logger types, response information, etc are in the station metadata. This can be accessed directly(link) or via the obspy get_stations (link) tool.
31 31  
32 32  
33 33  == Sub-paragraph ==
... ... @@ -41,12 +41,13 @@
41 41  
42 42  = Waveform Data =
43 43  
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44 +Waveform data (e.g. the actual seismic data) can be accessed directly (link) or via obspy's get_waveforms (link) tool. It can also be accessed via various tools such as seed-vault, pyweed, etc (add links).
45 45  
46 -
47 47  
48 48  = Earthquake Data =
49 49  
49 +
50 +
50 50  == How to download an Earthquake Catalog ==
51 51  
52 52  {{code language="python"}}
... ... @@ -74,4 +74,57 @@
74 74  catalog.write("Woodspoint_earthquakes.xml", format="QUAKEML")
75 75  {{/code}}
76 76  
78 +== How to plot (Global) Earthquakes ==
79 +
80 +{{code language="python"}}
81 +from obspy import UTCDateTime
82 +from obspy.clients.fdsn import Client
83 +
84 +# Initialize FDSN client to connect to the IRIS data center
85 +client = Client("IRIS")
86 +
87 +# Set the time range for fetching earthquake data
88 +# Start time: January 1, 2023
89 +# End time: Current time
90 +starttime = UTCDateTime("2023-01-01")
91 +endtime = UTCDateTime()
92 +
93 +# Fetch earthquake events with a minimum magnitude of 7
94 +catalog = client.get_events(starttime=starttime, endtime=endtime, minmagnitude=7)
95 +#client.get_events(). This function returns a Catalog object that contains a list of Event objects.
96 +#Each Event object, in turn, has an Origins attribute that contains the depth information
97 +
98 +# Plot the fetched earthquake data using an orthographic projection
99 +catalog.plot(projection="ortho", title="Global Earthquakes with Magnitude >= 7 since 2023")
100 +#catalog.plot(), ObsPy automatically uses the depth information to color the events in the plot
101 +{{/code}}
102 +
103 +== How to plot (Local) Earthquakes ==
104 +
105 +{{code language="python"}}
106 +from obspy import UTCDateTime
107 +from obspy.clients.fdsn import Client
108 +
109 +# Initialize FDSN client
110 +client = Client("AUSPASS")
111 +
112 +# Define time range
113 +starttime = UTCDateTime("2023-01-01")
114 +endtime = UTCDateTime()
115 +
116 +# Latitude and longitude bounds for Australia
117 +minlatitude = -44.0
118 +maxlatitude = -10.0
119 +minlongitude = 113.0
120 +maxlongitude = 154.0
121 +
122 +# Fetch event data for Australia with a minimum magnitude
123 +catalog = client.get_events(starttime=starttime, endtime=endtime, minmagnitude=4,
124 + minlatitude=minlatitude, maxlatitude=maxlatitude,
125 + minlongitude=minlongitude, maxlongitude=maxlongitude)
126 +
127 +# Plot the earthquakes
128 +catalog.plot(projection="local", title="Australia Earthquakes", resolution="i")
129 +{{/code}}
130 +
77 77