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Changes for page FDSN Guide

Last modified by robert on 2025/03/24 12:02
From version 2.2
edited by robert
on 2025/03/24 10:17
Change comment: There is no comment for this version
To version 1.1
edited by robert
on 2025/03/24 10:00
Change comment: There is no comment for this version

Summary

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2 2  {{toc/}}
3 3  {{/box}}
4 4  
5 -= [[How to Install ObsPy>>url:https://github.com/obspy/obspy/wiki#installation]] =
6 -
7 -= [[Seed-Vault>>https://github.com/AuScope/seed-vault]] =
8 -
9 9  = Connecting to an FDSN Server =
10 10  
11 -== How to connect to AusPass with & without authenticated access ==
12 -
13 -
14 -{{code language="python"}}
15 -import obspy
16 -from obspy.clients.fdsn import Client
17 -
18 -# Initialize FDSN client for AusPass
19 -
20 -# For open access data, no username or password is required.
21 -client = Client('AUSPASS')
22 -
23 -# To access restricted data, supply your username and password
24 -# Replace 'Z1' and '12345' with your actual credentials
25 -client = Client('AUSPASS', user='Z1', password='12345')
26 -{{/code}}
27 -
28 28  = Station Metadata =
29 29  
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.
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31 31  
11 +
32 32  
33 33  == Sub-paragraph ==
34 34  
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41 41  
42 42  = Waveform Data =
43 43  
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).
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45 45  
26 +== Sub-paragraph ==
46 46  
47 -= Earthquake Data =
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48 48  
49 -
50 -
51 -== How to download an Earthquake Catalog ==
52 -
53 -{{code language="python"}}
54 -from obspy.clients.fdsn import Client
55 -from obspy import UTCDateTime
56 -
57 -# Initialize the AusPass FDSN client
58 -client = Client("AUSPASS")
59 -
60 -# Define the time range for the earthquake catalog
61 -start_time = UTCDateTime("2021-08-01")
62 -end_time = UTCDateTime("2022-01-01") # End of year
63 -
64 -# Define the geographic region (latitude and longitude for Woodspoint, Victoria, Australia)
65 -latitude = -37.47
66 -longitude = 146.10
67 -max_radius = 5 # in degrees
68 -
69 -# Download the earthquake catalog
70 -catalog = client.get_events(starttime=start_time, endtime=end_time,
71 - minmagnitude=2, latitude=latitude, longitude=longitude,
72 - maxradius=max_radius)
73 -
74 -# Save the catalog to a file (e.g., QuakeML format)
75 -catalog.write("Woodspoint_earthquakes.xml", format="QUAKEML")
76 -{{/code}}
77 -
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 -
131 -
30 += Earthquake Data =