European-Mediterranean Seismological Centre
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The European-Mediterranean Seismological Centre (EMSC; french: Centre Sismologique Euro-Méditerranéen, ) is an international,
non-governmental A non-governmental organization (NGO) or non-governmental organisation (see spelling differences) is an organization that generally is formed independent from government. They are typically nonprofit entities, and many of them are active in ...
and
not-for-profit organisation A nonprofit organization (NPO) or non-profit organisation, also known as a non-business entity, not-for-profit organization, or nonprofit institution, is a legal entity organized and operated for a collective, public or social benefit, in co ...
. The European-Mediterranean region is prone to destructive earthquakes. When an
earthquake An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in intensity, fr ...
occurs, a scientific organisation is needed to determine, as quickly as possible, the characteristics of the seismic event. The European-Mediterranean Seismological Centre (EMSC) receives seismological data from more than 65 national seismological agencies, mostly in the Euro-Mediterranean region. The most relevant earthquake parameters, such as the
earthquake location The primary purpose of a seismometer is to locate the initiating points of earthquake epicenters. The secondary purpose, of determining the 'size' or Moment magnitude scale must be calculated after the precise location is known. The earliest seis ...
and the
earthquake magnitude Seismic magnitude scales are used to describe the overall strength or "size" of an earthquake. These are distinguished from seismic intensity scales that categorize the intensity or severity of ground shaking (quaking) caused by an earthquake at ...
, and the shaking felt by the population are available within one hour from the earthquake onset.


History

The European-Mediterranean Seismological Centre (EMSC) is a
not-for-profit organisation A nonprofit organization (NPO) or non-profit organisation, also known as a non-business entity, not-for-profit organization, or nonprofit institution, is a legal entity organized and operated for a collective, public or social benefit, in co ...
with 84 member institutes from 55 different countries. The centre was established in 1975 under the request of the European Seismological Commission (ESC). The EMSC became operational on 1 January 1975, at the Institut de Physique du Globe de Strasbourg. It received its final statute in 1983. In 1987, the EMSC was appointed by the
Council of Europe The Council of Europe (CoE; french: Conseil de l'Europe, ) is an international organisation founded in the wake of World War II to uphold human rights, democracy and the rule of law in Europe. Founded in 1949, it has 46 member states, with a p ...
as the main organisation to provide the
European Alert System The European Alert System (sometimes referred to as the European Alarm System or European Warning System) is an earthquake warning system for member states of the Council of Europe's EUR-OPA Major Hazards Agreement. Seismic alerts are provided by ...
under the Open Partial Agreement (OPA) on Major Hazards. In 1993, the EMSC statute and organisation were amended. Its headquarters moved to the Laboratoire de Détection et de Géophysique (LDG) within the Département Analyse, Surveillance, Environnement (DASE) of the French Atomic Energy Commission (CEA), in Bruyères-le-Châtel (Essonne, France). As an international, non-governmental and non-profit organisation, the EMSC also focuses on promoting seismological research within and beyond its community. Hence, the EMSC is involved in many European (FP7 and H2020) projects: FP7 projects:
NERA

VERCE

MARsite

REAKT
H2020 projects:
EPOS-IP

IMPROVER

CARISMAND

ENVRIplus

ARISE2
Other projects:




ARISTOTLE


Objectives and activities

The main scientific objectives of the EMSC are: * To establish and operate a system for rapid determination of the European and Mediterranean earthquake epicentres (location of major earthquakes within a delay of approximately one hour). EMSC, acting as the central authority, is responsible for transmitting these results immediately to the appropriate international authorities and to the members in order to meet the needs of protection of society, scientific progress and general information. * To determine the main source parameters (epicentre coordinates, depth, magnitude,
focal mechanism The focal mechanism of an earthquake describes the deformation in the source region that generates the seismic waves. In the case of a fault-related event it refers to the orientation of the fault plane that slipped and the slip vector and ...
s, etc) of major seismic events located within the European-Mediterranean region, and to dispatch widely the corresponding results. * To collect the data and make them available to other international, regional or national data centres such as the International Seismological Centre (ISC), the United States National Earthquake Information Center (NEIC), etc. * To encourage scientific cooperation among European and Mediterranean countries in the field of earthquake research, and to develop studies of general interest such as: epicentre location methods, construction of local and regional travel-time tables, magnitude determination, etc. * To promote seismological data exchange between laboratories in the European-Mediterranean area. * To afford detailed studies of specific events. * To build a European seismological data bank. * To improve the observational systems in the European-Mediterranean region through a critical examination of the seismological coverage, and suggest methods in order to improve the quality of observations and their transmission to EMSC.


Specific approaches


Flashsourcing

EMSC has developed a new approach based on internet traffic analysis: when an earthquake occurs, witnesses rush on th
EMSC website
to look for further explanation of the event. Therefore, they create a surge in the website traffic which can indicate that an earthquake just occurred, even before receiving data provided by national seismological institutes. By identifying the geographical origin of the website's visitors, the area where the earthquake was felt is mapped within a couple of minutes of its occurrence. This technique is named flashsourcing.


Citizen seismology

Citizens are a primary source of information in the real-time earthquake detections. EMSC involves them in earthquake response by collecting in-situ information (e.g., questionnaires, pictures, videos) on the earthquake impact directly from the earthquake eyewitnesses. Consequently, by involving the citizens in the response, the EMSC paves the way for an efficient strategy to raise seismic risk awareness.


References



Transforming Earthquake Detection?

Transforming Earthquake Detection and Science through Citizen Seismology


External links

*
Citizen Seismology
{{Authority control Earthquake and seismic risk mitigation Seismological observatories, organisations and projects Seismic networks Organizations based in Île-de-France