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Seismology

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Crowdsourcing in Europe: how to share macroseismic data of felt earthquakes ?

Crowdsourcing in Europe: how to share macroseismic data of felt earthquakes ?
“Did you feel the earthquake ?”     “Avez-vous ressenti un tremblement de Terre?”      “Erdbeben gespürt?”
         ” Følte du siste jordskjelv?”            “Sentiu um Sismo?”
“Ha sentido algún terremoto?”      “Pocítili ste zemetrasenie?”      “Hai Sentito il Terremoto?”
“почувствахте ли земетресение?”

Technical workshop on internet macroseismology: a reflection

14-15 November 2017, Ljubljana, Slovenia


Last week 41 European seismologists from 19 organisations gathered at ARSO in Ljubljana (Slovenia) to discuss on a solution how macroseismic data, i.e. earthquake intensity data derived from felt earthquake reports, could be better collected and exchanged between seismological institutes in the future. The European and Mediterranean situation is quite complex as at least 36 seismological institutes (see below) in 24 countries all collect felt reports using their own or a standardised online questionnaire or using a smartphone app. When an earthquake is only felt within the border of one country, likely only one responsible national institute (except in Germany or Spain) will have all the data and can properly map the earthquake impact. However, in case of cross-border felt earthquakes, the gathering of macroseismic data is fragmented between different institutes who are all responsible for the macroseismic information in their country. Hence, sharing intensity values derived from online questionnaires is essential and would strongly facilitate mapping the impact of transfrontier-felt earthquakes in the future.

During the workshop 17 studies (see list) on national and international methodologies, objectives, collecting systems and case studies were presented. Currently, apart from rapid information about the felt area from EMSC and a few cross-border initiatives, there is no coordinated and comprehensive system to collect, interpret and present macroseismic data on a European level. During the discussion numerous ideas were exchanged how to harmonise the data to facilitate the exchange. It was decided to develop a new proposal for an ESC (European Seismological Commission) working group that can concentrate on these challenges in macroseismic data exchange in Europe, and to propose a special session dedicated to Internet Macroseismology at the forthcoming ESC General Assembly in Malta (2-7 Sep 2018).

The workshop was organised by Ina Cecić (ARSO) and Rémy Bossu (EMSC) with the support from EPOS.

Let’s give macroseismology in Europe a face. Earthquakes don’t stop at political or language borders.

Participants to the workshop. Source: ARSO: http://www.arso.gov.si/o%20agenciji/novice/arhiv (14 Nov 2017)

Following studies were presented:

  • Bossu R. (EMSC) Collecting felt reports of Global Earthquakes at EMSC:  How and Why?
  • Landes M. (EMSC) From eyewitnesses to seismological services.
  • Šket Motnikar B. & Cerk M. (ARSO, IZV, Slovenia) Overview of database structure and macroseismic assessment through web application in Slovenia.
  • De Rubeis, V. & Tosi, P. (INGV, Italy) The experience of crowdsourced web macroseismic intensity investigation in Italy:  evolution, results, problems and perspectives.
  • Pazak P. (ESI SAS, Slovakia) Slovak web-based questionnaire for macroseismic data collection.
  • Rønnevik C. (UniB, Norway) Integration of Norwegian Macroseismic Data into EPOS e-Infrastructure.
  • Schlupp A. & Sira C. (BCSF EOST, France) BCSF macroseismic data collection for French territories, and their exchange and merging for earthquakes affecting different countries.
  • Horn N. (ZAMG, Austria) Webservices for the distribution of macroseismic data.
  • Sović I. & Ivančić I. (GO PMF, Croatia) Macroseismic data collected in Croatia by internet.
  • Kaiser D. (BGR, Germany) Collecting macroseismic data in Germany by internet – an overview.
  • Musson R. (by Cecić I.) (BGS, UK) Implementing the EMS for online intensity.
  • Moldovan I.A. (NIEP, Romania) Internet macroseismology in Romania.
  • Alves P.M. & Marreiros, C. (IPMA, Portugal) Overview of the methods and results related with macroseismic web-questionnaires at IPMA – Portugal
  • Sbarra P. (INGV, Italy) Macroseismic diagnostics anomalies some practical examples.
  • Beinersdorf S. (BUniW, Germany) Shakemaps for Central Europe implementing macroseismic observations
  • Van Noten K. & Lecocq T. (ROB, GSB, Belgium) Merging transfrontier internet macroseismic data of earthquakes in NW Europe using a grid cell approach
  • Batlló J., Jara J.A., Irizarry J. & Figueras S. (ICGC) Macroseismics in Cataloni


European institutes

In below an overview is given of all European institutes that organise a macroseismic online survey (or in their overseas departments). Apologies if any survey would have been forgotten. Please contact us for mistakes. This list is constructed to give Macroseismology more visibility and to create some transparency in this labyrinth of data collection.

Andorra: CENMA, Unit for Environmental studies: Enquesta Sísmica (Catalan)

Austria: Zentralanstalt für Meteorologie und Geodynamik (ZAMG): Erdbeben gespürt?

Belgium – Germany: Transfrontier collaboration between the Royal Observatory of Belgium and the University of Cologne (Erdbebenstation Bensberg): Avez-vous ressenti un tremblement de Terre?  /  Heeft u de aardbeving gevoeld?  /  Haben Sie ein Erdbeben gespürt / Did you Feel the earthquake?

Bulgary: National institute in Geophysics, Geodesy and Geography:  ВЪПРОСНИК ЗА УСЕТЕНО ЗЕМЕТРЕСЕНИЕ

Czech Republic: Uses the international EMSC inquiry. I just felt an earthquake

Denmark: Geological survey of Denmark and Greenland: Indberetning af jordskælv

Finland: University of Helsinki : Ilmoitus maanjäristyshavainnoista (Finnish) / Skicka Din rapport om jordskalvet (Swedish)

France: Le Bureau Central Sismologique Français (BCSF) : Avez-vous ressenti un tremblement de Terre?

Germany:

Greece: Uses the international EMSC inquiry. I just felt an earthquake

Hungary: Hungary Earthquake Information System: Amennyiben Ön is érezte a földrengést, kérjük töltse ki kérdőívünket!

Iceland: Icelandic Met Office : Tilkynna jarðskjálfta

Ireland: Dublin Institute for advanced sciences: Have you felt an earthquake

Italy:  Istituto Nazionale di Geofisica e Vulcanologia (INGV): Hai Sentito il Terremoto?

Malta: University of Malta: Did you feel an earthquake?

Norway: Norwegian National Seismic Network – University of Bergen: Følte du siste jordskjelv?

Portugal: Instituto Português do mar e da atmosfera: Sentiu um Sismo?

Romania: National Institute for Earth Physics : L-ai simtit?

Slovakia: Bratislava Geophysical Institute: Pocítili ste zemetrasenie na Slovensku?

Slovenia: Slovenian Environment Agency :  Potresi – vprašalnik

Spain:

Switzerland: Swiss Seismological Service: “Did You Feel an earthquake?” (also available in French, German, English and Italian)

Sweden: Svenska nationella seismiska nätet – Uppsala Universitet: Har du känt av ett jordskalv?

The Netherlands: Koninklijk Nederlands Meteorologisch Instituut (KNMI): Heeft u een aardbeving gevoeld?

United Kingdom: British Geological Survey (BGS): Have you felt an earthquake?

Global: European–Mediterranean Seismological Centre (EMSC): Have you felt an earthquake?


By Koen Van Noten
Koen Van Noten is an earthquake geologist at the Geological Survey of Belgium (previously Royal Observatory of Belgium). He investigates the influence of site effects on intraplate earthquake ground motions using intensity data of felt earthquakes and near-surface geophysical techniques. Koen’s role as ECS is to encourage students to promote their results in seismology, geology and near-surface geophysics in various ways.

Seismology for non-seismologists

Short Course at EGU2017, organized by the ECS-Team of the Seismology Division
Title
: SC76/SM10.11 – Seismology for non-seismologists
Time: Thursday 27 April, 13:30 – 15:00
Location: Room -2.91

This short course is dedicated to non-seismologists, with a particular focus for young scientists (graduates, PhD students and postdocs). The main goal of this short course is to provide an introduction into the basic concepts and methods in seismology and how these methods are applicable to investigate the near-surface and Earth’s interior. The course will highlight the role that advanced seismological analysis techniques can play in the co-interpretation of results from other fields in the geosciences, such as tectonics, physics, geology, geodynamics, volcanology and hydrology.

The topics covered this year will include
(1) what and how seismologists measure in land and at sea by Laura Parisi and Alba Gil.
(2) how seismologists study earthquake sources and how these studies relate to seismic hazard by Olaf Zielke.
(3) how seismologists image the interior of the Earth with and without earthquakes by Marco Galo and Nienke Blom.

We likely won’t turn you into a seismologist in 90 minutes, but would rather like to make you aware how seismological techniques can help you in geoscience. The intention is to discuss each topic in a non-technical manner, emphasizing their respective strengths and potential shortcomings. Not only will this course help non-seismologists to better understand seismic results but it will also facilitate more enriched discussion between different scientific disciplines.

The 90-minute short course will be run by fellow young seismologists and geoscientists, who will present examples from their own research and from reference papers for illustration. 15-20 minutes will be reserved for questions from the audience on the topics covered by the short course and general seismology.


By Koen Van Noten
Koen Van Noten is an earthquake geologist at the Geological Survey of Belgium. He investigates the influence of site effects on intraplate earthquake ground motions by Did You Feel It?” macroseismic data and near-surface geophysical techniques. Koen’s role as ECS is to encourage students to promote their results in seismology, geology and near-surface geophysics in various ways.

Some reminders for EGU2017 General Assembly

With only 3 days left for the kick off of the annual European Geosciences Union General Assembly (2017), here is a quick-list to go through in time for EGU.

First, read this page for information concerning activities for Early Career Scientists at the GA:
https://www.egu.eu/young-scientists/at-the-assembly/

Sunday 23th April: The Opening Reception, 18.30-21.00 in Foyer E.
Mingle and tingle with the crowd, old, not so old, and young scientists, all in one place. A perfect place for a cheer and networking. A gathering point for early career scientists provides the opportunity to meet like-minded fellows, especially if it is your first time at the General Assembly or you are coming alone.

EU2017 mobile app
The EGU2016 mobile app is now available for most smart phones. Go to http://app.egu2017.eu  to download the app. 

Short Courses
With an ever increasing number of short courses held at the GA,  probably there is one good course for you. Many are held during breaks, purposely not to coincide with other sessions. The full list is here:  http://meetingorganizer.copernicus.org/EGU2017/sessionprogramme/SC

A quick look on the Seismology Program:  http://meetingorganizer.copernicus.org/egu2017/meetingprogramme/sm

  • Tuesday – Thursday: Meet the EGU Division President and the ECS Representative of Seismology
    Get a unique opportunity to meet with P. Martin Mai, the current president for the Seismology Division and L. Parisi. You are invited to stop at the EGU booth to ask EGU related questions or discuss ways you would like EGU to improve. Martin and Laura will be available on Tuesday and Thursday during lunch, 12:00-13:30 / Room EGU Booth
  • Medal Lectures
    Get the opportunity to listen to world class experts in various geosciences. Medal Lectures are special sessions that give merit to distinguished scientists. They are usually followed by insightful (and thought provoking)  presentations. These lectures are well attended and seats are quickly taken.

Note for seismologists: the Beno Gutenberg Medal Lecture by Hitoshi Kawakatsu on Wednesday, 26th April between 11:00–12:00 / Room K1. 

  • WednesdayDivision Meeting for Seismology (after the Beno Gutenberg lecture)
    In the Division Meeting for Seismology (SM), the division president will present the latest information on the state of the division, statistics for abstracts and sessions in 2016, and the news related to the various divisional activities. All members are invited, and encouraged to actively participate in the meeting. Lunch is provided.  Wed, 26 Apr, 12:15–13:15 / Room K1
  • Wednesday: Recent activities of the Seismology Division Early Career Representative(s) 
    What is a POM? Ever read a Seismology Blogpost? Are you aware of our facebook and Twitter initiatives? Do you have any comments/recommendations and/or concerns with regards to EGU and/or the Seismology Division? This is the right opportunity to share ideas with your ECS representative(s). We highlight all Seismology activities on a poster that will be presented on Wednesday 26th April, 17:30-19:00 – at EGU2017-13751. Hall X3. Come over and let’s talk!
  • Wednesday 26th April, 20h: SEISMOLOGY SOCIAL EVENT : Meet us for a drink at Mel’s Craft Beers & Diner, Wipplinger-straße 9, 1010 Wien.

  • Thursday: Consider attending our yearly own Short Course: Seismology for non-seismologistsThursday 27h April, 13:30-15:00, Room -2.91. A dedicated short course directed to non-seismologists or early career seismologists, with a particular focus how to integrate seismology within your own research. Every year this short course has been a success. We likely won’t turn you into a seismologist in 90 minutes, but would rather like to make you aware how seismological techniques can help you in geoscience.

Early Career Scientists’ Lounge.

In the Red Level of the conference centre you can find a place to take a break, grab a free coffee or soft drink and gather your thoughts away from the buzz of the Assembly. The lounge is also a great place to catch up with colleagues you haven’t seen in a while and perhaps strike up a new collaboration. On the notice boards you can find information about cultural activities on offer in Vienna. There is also the opportunity to provide feedback via suggestion boards.


By Koen Van Noten

Koen Van Noten is an earthquake geologist at the Geological Survey of Belgium. He investigates the influence of site effects on intraplate earthquake ground motions by Did You Feel It?” macroseismic data and near-surface geophysical techniques. Koen’s role as ECS is to encourage students to promote their results in seismology, geology and near-surface geophysics in various ways.

EGU Seismology Division 2017 visibility survey

Dear Seismology Division blogpost, Facebook and Twitter followers,

The EGU Seismology Division has prepared an online survey to investigate how members are following our division’s activities online. The data we will acquire through this simple survey allows us to learn how we can improve our visibility and to which activities we could further focus. The results will NOT be used for any commercial activities. They will be shown during next month’s GA in Vienna. All division members are encouraged to take part and to spread the word !

Visit the survey here:
goo.gl/CrR7N2

The online survey is an initiative of the Seismology ECS Team on behalve of Koen Van Noten, Laura Parisi, Matthew Agius, Laura Ermert, Lucia Gualtieri, Kathrin Spieker and Martin Mai (EGU Seismology Division President)

Visit the Blog: https://blogs.egu.eu/divisions/sm/
Facebook page: https://www.facebook.com/EGUSeismologyDivision/
Division on Seismology webpage: www.egu.eu/sm/home/
Twitter account: https://twitter.com/EGU_Seismo


By Koen Van Noten

Koen Van Noten is an earthquake geologist at the Geological Survey of Belgium. He investigates the influence of site effects on intraplate earthquake ground motions by Did You Feel It?” macroseismic data and near-surface geophysical techniques. Koen’s role as ECS is to encourage students to promote their results in seismology, geology and near-surface geophysics in various ways.