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The second-order statistical analysis of marked inhomogeneous spatio-temporal point processes
University of Valencia, Spain. (Department of Statistics and Operations Research)ORCID-id: 0000-0001-8117-3461
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Institutionen för matematik och matematisk statistik.ORCID-id: 0000-0002-6721-8608
University of Valencia, Spain. (Department of Statistics and Operations Research)
2016 (Engelska)Ingår i: METMA VIII: Proceedings of the 8th International Workshop on Spatio-Temporal Modelling / [ed] A. Iftimi, J. Mateu, F. Montes, 2016, s. 89-93Konferensbidrag, Muntlig presentation med publicerat abstract (Övrigt vetenskapligt)
Abstract [en]

An earthquake is characterised by the shaking of the surface of the Earth, and can range from being imperceptible to causing huge damage and killing thousands of people. Magnitude is a measure of the size of an earthquake source, and does not depend on the spatio-temporal location of the event. The data in this study includes all earthquakes with magnitude larger than or equal to 5, with a total of 1248 earthquakes registered from 2004 to 2008, in the area of Sumatra (Indonesia). We analyse the interaction between different types of earthquakes, classified according to their magnitude, at different space-time scales. We want to identify spatio-temporal interaction between high magnitude earthquakes (magnitude larger than 5:5) and smaller magnitude earthquakes ( 5:5). The analysis shows a strong relation between big earthquakes and aftershocks. We observe that aftershocks could span their power as far as 3,000 km and 400 days. Random labelling testing shows, as expected, that we do not have random labelling.

Ort, förlag, år, upplaga, sidor
2016. s. 89-93
Nyckelord [en]
Second-order analysis, Marked inhomogeneous point pattern, Earthquake data, Marked inhomogeneous spatio-temporal K-function
Nationell ämneskategori
Sannolikhetsteori och statistik
Forskningsämne
matematisk statistik; statistik
Identifikatorer
URN: urn:nbn:se:umu:diva-145041ISBN: 978-84-608-8468-2 (tryckt)OAI: oai:DiVA.org:umu-145041DiVA, id: diva2:1183608
Konferens
8th International Workshop on Spatio-Temporal Modelling (METMA VIII), Valencia (Spain), 1–3 June 2016
Tillgänglig från: 2018-02-18 Skapad: 2018-02-18 Senast uppdaterad: 2018-06-09Bibliografiskt granskad

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Iftimi, AdinaCronie, Ottmar

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