# Uncategorized

**URL:** https://discourse.obspy.org/c/uncategorized/1.md?page=1

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**Page:** 2

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## [OBSData set (miniseed and earthquake catalogue)](https://discourse.obspy.org/t/obsdata-set-miniseed-and-earthquake-catalogue/1754)

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**Author:** [@Zamir1](https://discourse.obspy.org/u/Zamir1)\
**Replies:** 4\
**Last updated:** [July 25, 2023, 9:42am UTC](https://discourse.obspy.org/t/obsdata-set-miniseed-and-earthquake-catalogue/1754 "2023-07-25T09:42:14Z")

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Currently I am working on a project related to seismic phase picking and event detection. I have tried to download OBSdata from online reporities (e.g IRIS, USGS.) but I am having difficulty downloading OBSDataset. I req…

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## [Spector-psd-color](https://discourse.obspy.org/t/spector-psd-color/1736)

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**Author:** [@benben](https://discourse.obspy.org/u/benben)\
**Replies:** 0\
**Last updated:** [June 30, 2023, 3:39pm UTC](https://discourse.obspy.org/t/spector-psd-color/1736 "2023-06-30T15:39:06Z")

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Dear all, I am trying to plot a 48-hours spectrogram and have 2 subplots for the same spectro but different color scales to highlight different patterns. I also don’t know how I can control the min/max of my color scale…

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## [Moment Magnitude (Mw) Calculating](https://discourse.obspy.org/t/moment-magnitude-mw-calculating/1733)

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**Author:** [@kozan88](https://discourse.obspy.org/u/kozan88)\
**Replies:** 1\
**Last updated:** [June 24, 2023, 7:35am UTC](https://discourse.obspy.org/t/moment-magnitude-mw-calculating/1733 "2023-06-24T07:35:47Z")

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Hello, I have sac data and XML files for my broadband seismic stations. I tried to write a script to calculate the moment magnitude (Mw) using Obspy, but I could not. I reviewed the tutorial, but I did not find anything…

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## [Rel\_calib\_stack to response](https://discourse.obspy.org/t/rel-calib-stack-to-response/1654)

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**Author:** [@Fred\_Massin](https://discourse.obspy.org/u/Fred_Massin)\
**Replies:** 3\
**Last updated:** [June 21, 2023, 8:02am UTC](https://discourse.obspy.org/t/rel-calib-stack-to-response/1654 "2023-06-21T08:02:02Z")

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Hello Can someone help to get from the output of rel\_calib\_stack to a obspy.core.inventory.response.Response that I can attach to a obspy.core.inventory.channel ? Cheers Fred

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## [Frequency-amplitude-phase output from response inventory](https://discourse.obspy.org/t/frequency-amplitude-phase-output-from-response-inventory/1686)

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**Author:** [@gks](https://discourse.obspy.org/u/gks)\
**Replies:** 1\
**Last updated:** [April 6, 2023, 7:21am UTC](https://discourse.obspy.org/t/frequency-amplitude-phase-output-from-response-inventory/1686 "2023-04-06T07:21:18Z")

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I can create a bode plot of the instrument response, but is there a way to output the frequency-amplitude-phase numbers? Basically, a FAP file?

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## [PPSD with no available Response Information](https://discourse.obspy.org/t/ppsd-with-no-available-response-information/1679)

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**Author:** [@ME890](https://discourse.obspy.org/u/ME890)\
**Replies:** 1\
**Last updated:** [April 3, 2023, 1:48pm UTC](https://discourse.obspy.org/t/ppsd-with-no-available-response-information/1679 "2023-04-03T13:48:32Z")

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Hello, I would like to compute the PPSD for a signal acquired with a digital MEMS accelerometer. The signal I have is expressed in gs, and I have no instrument reponse information/StationXML file to pass to the PPSD func…

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## [How to put SAC header?](https://discourse.obspy.org/t/how-to-put-sac-header/1675)

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**Author:** [@geoAP90](https://discourse.obspy.org/u/geoAP90)\
**Replies:** 0\
**Last updated:** [March 30, 2023, 11:31am UTC](https://discourse.obspy.org/t/how-to-put-sac-header/1675 "2023-03-30T11:31:31Z")

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Hi all! I am new to ObsPy I want to understand howto put header(Station and event information) in multiple SAC files using ObsPy?

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## [Code or library to encode in STEIM12](https://discourse.obspy.org/t/code-or-library-to-encode-in-steim12/1661)

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**Author:** [@ME890](https://discourse.obspy.org/u/ME890)\
**Replies:** 1\
**Last updated:** [March 17, 2023, 8:53am UTC](https://discourse.obspy.org/t/code-or-library-to-encode-in-steim12/1661 "2023-03-17T08:53:49Z")

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Hello, is the code or library used to convert miniSEED payloads to STEIM available somewhere?

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## [Remove instrument response](https://discourse.obspy.org/t/remove-instrument-response/1636)

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**Author:** [@Qian](https://discourse.obspy.org/u/Qian)\
**Replies:** 1\
**Last updated:** [March 6, 2023, 9:03am UTC](https://discourse.obspy.org/t/remove-instrument-response/1636 "2023-03-06T09:03:55Z")

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Hi dear community!! I want to process a network that have two different kind of sensors: broad band and short period. I was wondering if there is a way to remove the response of the sensors as if I use only one instrume…

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## [Frequency plot and analysis](https://discourse.obspy.org/t/frequency-plot-and-analysis/1652)

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**Author:** [@benben](https://discourse.obspy.org/u/benben)\
**Replies:** 1\
**Last updated:** [March 6, 2023, 8:45am UTC](https://discourse.obspy.org/t/frequency-plot-and-analysis/1652 "2023-03-06T08:45:16Z")

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Dear all, I want to produce a frequency plot and analysis the frequency content of my seismogram as below but I am not idea how to do that.

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## [How to combine 3 component mseed files?](https://discourse.obspy.org/t/how-to-combine-3-component-mseed-files/1622)

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**Author:** [@Adnan\_Seismology](https://discourse.obspy.org/u/Adnan_Seismology)\
**Replies:** 3\
**Last updated:** [February 2, 2023, 8:42am UTC](https://discourse.obspy.org/t/how-to-combine-3-component-mseed-files/1622 "2023-02-02T08:42:21Z")

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I am using mass-downloader to download daily 3 component .mseed files from GEOFON (GFZ) network. Instead of downloading all components in a single file, script downloading each component in an individual file. I require …

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## [N column on iasp91](https://discourse.obspy.org/t/n-column-on-iasp91/1568)

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**Author:** [@Qian](https://discourse.obspy.org/u/Qian)\
**Replies:** 1\
**Last updated:** [November 30, 2022, 10:34am UTC](https://discourse.obspy.org/t/n-column-on-iasp91/1568 "2022-11-30T10:34:37Z")

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Hi, I am working with iasp91 velocity model (pictures), and I am wondering what is the mean of the values on the ‘n’ column and how I could compute it for a different velocity model? Thanks in advance!

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## [PSD/spectrogram](https://discourse.obspy.org/t/psd-spectrogram/1550)

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**Author:** [@benben](https://discourse.obspy.org/u/benben)\
**Replies:** 1\
**Last updated:** [November 14, 2022, 10:57am UTC](https://discourse.obspy.org/t/psd-spectrogram/1550 "2022-11-14T10:57:59Z")

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I am trying to analyse daily seismic recordings near a river to capture signals associated with river processes. It is new for me, and not sure if I am doing things right. I cut the signal in 6 hours windows and tried t…

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## [How to delete a particular line in xml file based on the condition](https://discourse.obspy.org/t/how-to-delete-a-particular-line-in-xml-file-based-on-the-condition/1534)

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**Author:** [@nailraul](https://discourse.obspy.org/u/nailraul)\
**Replies:** 1\
**Last updated:** [November 1, 2022, 2:07pm UTC](https://discourse.obspy.org/t/how-to-delete-a-particular-line-in-xml-file-based-on-the-condition/1534 "2022-11-01T14:07:51Z")

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hello, I combiled all channels xml files under one xml file by using obspy… only the end of the final XML file should look like: but it remains at each end of channel parametrs. Would you please, recommend w…

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## [Nordic to SC xml](https://discourse.obspy.org/t/nordic-to-sc-xml/1521)

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**Author:** [@Dcastro](https://discourse.obspy.org/u/Dcastro)\
**Replies:** 1\
**Last updated:** [October 17, 2022, 8:31am UTC](https://discourse.obspy.org/t/nordic-to-sc-xml/1521 "2022-10-17T08:31:29Z")

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Hello everyone!! Im want to convert nordic format to sc xml any idea??

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## [Magnitude estimation of an earthquake with accelerometers](https://discourse.obspy.org/t/magnitude-estimation-of-an-earthquake-with-accelerometers/1500)

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**Author:** [@ecastillot](https://discourse.obspy.org/u/ecastillot)\
**Replies:** 4\
**Last updated:** [September 28, 2022, 3:49pm UTC](https://discourse.obspy.org/t/magnitude-estimation-of-an-earthquake-with-accelerometers/1500 "2022-09-28T15:49:26Z")

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Hello obspy community, I am doing the exercise: advanced\_exercise\_solution\_3b of the obspy tutorial in order to calculate the magnitude of the events of other seismological data. However, I have noticed that the magnitu…

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## [Section plot \[Different events at same station\]](https://discourse.obspy.org/t/section-plot-different-events-at-same-station/1505)

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**Author:** [@Adnan\_Seismology](https://discourse.obspy.org/u/Adnan_Seismology)\
**Replies:** 7\
**Last updated:** [September 23, 2022, 1:34am UTC](https://discourse.obspy.org/t/section-plot-different-events-at-same-station/1505 "2022-09-23T01:34:04Z")

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Hi everyone, I require making a section plot for different events recorded at one station only. Here is my attempt but it gives me empty plot. May someone suggestion how can i fix this. from matplotlib.dates import date…

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## [Obspy Function to plot the amplitude spectra?](https://discourse.obspy.org/t/obspy-function-to-plot-the-amplitude-spectra/1461)

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**Author:** [@Adnan\_Seismology](https://discourse.obspy.org/u/Adnan_Seismology)\
**Replies:** 2\
**Last updated:** [September 19, 2022, 10:14am UTC](https://discourse.obspy.org/t/obspy-function-to-plot-the-amplitude-spectra/1461 "2022-09-19T10:14:57Z")

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Hi everyone, I am looking for obspy function to plot the amplitude spectra of the vertical waveform. Here is my script import numpy as np from obspy import read from obspy.clients.fdsn import Client from obspy.geodet…

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## [Requesting events with attached Picks information with FDSN client](https://discourse.obspy.org/t/requesting-events-with-attached-picks-information-with-fdsn-client/1462)

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**Author:** [@ME890](https://discourse.obspy.org/u/ME890)\
**Replies:** 3\
**Last updated:** [August 2, 2022, 10:41am UTC](https://discourse.obspy.org/t/requesting-events-with-attached-picks-information-with-fdsn-client/1462 "2022-08-02T10:41:53Z")

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I’m trying to create a catalogue of waveforms with associated picks information (mainly the type, uncertainty and pick time). The goal is to obtain something similar to the STEAD dataset for Machine Learning. I was pars…

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## [Do you know any fast way to make local FDSN web server?](https://discourse.obspy.org/t/do-you-know-any-fast-way-to-make-local-fdsn-web-server/1431)

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**Author:** [@ecastillot](https://discourse.obspy.org/u/ecastillot)\
**Replies:** 7\
**Last updated:** [June 22, 2022, 12:35am UTC](https://discourse.obspy.org/t/do-you-know-any-fast-way-to-make-local-fdsn-web-server/1431 "2022-06-22T00:35:25Z")

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Hi Obspy community, I would like to use MassDownloader class for my local database structure (where waveform and stationxml data are stored in a specific order). However, this class is only available for FDSN Clients. D…

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## [Removing instrument response in json format](https://discourse.obspy.org/t/removing-instrument-response-in-json-format/1430)

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**Author:** [@skripcha](https://discourse.obspy.org/u/skripcha)\
**Replies:** 2\
**Last updated:** [June 20, 2022, 8:47am UTC](https://discourse.obspy.org/t/removing-instrument-response-in-json-format/1430 "2022-06-20T08:47:09Z")

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Hi everyone, My instrument response files are in json format and not the regular RESP or SAC PZ formats that I am familiar with. Can anyone help me with a script to remove the instrument response in the json format? Yo…

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## [Slarchive data format clashing with obspy plot script](https://discourse.obspy.org/t/slarchive-data-format-clashing-with-obspy-plot-script/1397)

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**Author:** [@ME890](https://discourse.obspy.org/u/ME890)\
**Replies:** 4\
**Last updated:** [April 12, 2022, 11:19am UTC](https://discourse.obspy.org/t/slarchive-data-format-clashing-with-obspy-plot-script/1397 "2022-04-12T11:19:49Z")

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Hello, I used to use obspy to save a miniseed stream locally in a .SAC file. I have now started using slarchive to do the local storing of the miniseed data, but I’m not sure what kind of dataformat is being used by sei…

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## [MassDownloader questions](https://discourse.obspy.org/t/massdownloader-questions/1349)

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**Author:** [@langlami](https://discourse.obspy.org/u/langlami)\
**Replies:** 0\
**Last updated:** [January 6, 2022, 2:11pm UTC](https://discourse.obspy.org/t/massdownloader-questions/1349 "2022-01-06T14:11:41Z")

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Dear All, This is not a bug report rather than a list of question about this great tool I am beginning to use. I am using it to download a large amount of data. From the code exemples given I wrote a small code. It wo…

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## [Privacy Policy](https://discourse.obspy.org/t/privacy-policy/6)

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**Author:** [@system](https://discourse.obspy.org/u/system)\
**Replies:** 1\
**Last updated:** [July 5, 2020, 12:49pm UTC](https://discourse.obspy.org/t/privacy-policy/6 "2020-07-05T12:49:16Z")

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What information do we collect? We collect information from you when you register on our site and gather data when you participate in the forum by reading, writing, and evaluating the content shared here. When registe…

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## [Terms of Service](https://discourse.obspy.org/t/terms-of-service/4)

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**Author:** [@system](https://discourse.obspy.org/u/system)\
**Replies:** 1\
**Last updated:** [July 5, 2020, 12:49pm UTC](https://discourse.obspy.org/t/terms-of-service/4 "2020-07-05T12:49:15Z")

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These terms govern use of the Internet forum at http://discourse.obspy.org. To use the forum, you must agree to these terms with company\_name, the company that runs the forum. The company may offer other products and se…

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