scholarly journals Analysis of the possibility for seismic early warning in the Balkan Peninsula

2021 ◽  
Vol 82 (3) ◽  
pp. 168-170
Author(s):  
Dragomir Dragomirov ◽  
Lyuba Dimova ◽  
Milen Tsekov ◽  
Margret Velizarova ◽  
Fabio Romanelli ◽  
...  

This study analyses the possibility for seismic early warning (EW) in the Balkan Peninsula. A number of characteristics of seismic record were evaluated for EW utility. Some tests checked the possibility to locate events reliably by Golitsyn’s method, using one seismic station (SS). The distance and relevant travel time from some crustal faults to the nearest SS and big towns were appraised. EW procedures for most of the seismic zones in the Balkan Peninsula are not reliable, excepting the Vrancea zone, because of the small density of the SS, crustal depth of the earthquakes and fault crowdedness of the region.

2009 ◽  
Vol 80 (5) ◽  
pp. 755-771 ◽  
Author(s):  
K. Fleming ◽  
M. Picozzi ◽  
C. Milkereit ◽  
F. Kuhnlenz ◽  
B. Lichtblau ◽  
...  

2012 ◽  
Vol 17 (2) ◽  
pp. 485-505 ◽  
Author(s):  
M. Picozzi ◽  
D. Bindi ◽  
M. Pittore ◽  
K. Kieling ◽  
S. Parolai

2017 ◽  
Vol 38 (3) ◽  
pp. 138-144
Author(s):  
V. M. Shapka ◽  
A. I. Lyashchuk ◽  
Yu. A. Andrushchenko ◽  
I. V. Korniyenko ◽  
V. V. Grabchenko

Author(s):  
S. Verbitsky ◽  
R. Pronishin ◽  
V. Prokopishin ◽  
A. Stetskiv ◽  
M. Chuba ◽  
...  

The article describes seismic observations in the Carpathian region in 2014, which were carried out, as before, by two organizations from two states: in Ukraine – the Seismicity Department of the Carpathian region of the Institute of Geophysics of the National Academy of Sciences of Ukraine, in Moldova – the Seismology Laboratory of the Institute of Geology and Seismology of the Academy of Sciences of Moldova. In Ukraine, 20 stationary digital stations and 3 temporary ones worked in the Dniester energy complex with a processing center in Lviv, in Moldova - six stations with a center in Chisinau. Different programs, local hodo-graphs and magnitudes were used. The consolidated catalog of earthquakes was created in Lviv. A map of epi-centers and a table of the distribution of earthquakes of different classes by region are given. The total number of earthquakes in 2014 was NΣ=81 in the range KP =5.2–14.3 with the interval of hypocenter depths h=1–154 km and the total seismic energy ΣE=2.11·1014 J. Of these, 18 earthquakes with depths h=77–154 km located in the Vrancea zone. The maximum earthquake with KP=14.3 was registered on November 22 in the Precarpathian Trough with hрР=37 km. In the Vrancha mountains the maximum earthquake occurred on March 29 with the KP=12.5 and hрР=136 km. In the Precarpathian and Transcarpathian regions, all earthquakes were weaker. The most powerful event in Transcarpathia was a perceptible earthquake that occurred near the Trostnyk seismic station on November 15 with KP=8.9. The earthquake source is located in the Earth's crust at a depth of h=10 km. The earthquake was felt by the population of the Dyakovo, Trostnyk, Fanchykovo villages with the intensity of 5 and 4–5. In general, in all the seismically active zones of the Carpathians in 2014, there was a slight increase in the level of seismicity compared to that in 2013.


2013 ◽  
Vol 3 (1) ◽  
pp. 4 ◽  
Author(s):  
Gerassimos A. Papadopoulos ◽  
Anna Fokaefs

The new European project <em>Near-field Tsunami Early Warning and Emergency Planning in the Mediterranean Sea</em> (NEARTOWARN) faces the need to develop operational tsunami early warning systems in near-field (local) conditions where the travel time of the first tsunami wave is very short, that is less than 30 min, which is a typical case in the North East Atlantic and the Mediterranean Sea region but also elsewhere around the globe. The operational condition that should be fulfilled is that the time of tsunami detection, plus the time of warning transmitting, plus the time of evacuation should not exceed the travel time of the first tsunami wave from its source to the closest evacuation zone. To this goal the time to detect of the causative earthquake should be compressed at the very minimum. In this context the core of the proposed system is a network of seismic early warning devices, which activate and send alert in a few seconds after the generation of a near-field earthquake, when a seismic ground motion exceeding a prescribed threshold is detected. Then civil protection mobilizes to manage the earthquake crisis but also to detect and manage a possible tsunami through a geographical risk management system. For the tsunami detection the system is supported by tide-gauges of radar type, a database of presimulated tsunami scenarios, and a local tsunami decision matrix. The island of Rhodes in the eastern termination of the Hellenic Arc and Trench has been selected for a pilot and operational development of the local tsunami warning system given that the island is a highly popular tourist destination, historically it was hit by large tsunamigenic earthquakes and was recently the master test-site for the pan-European FP6 tsunami research project <em>Tsunami Risk ANd Strategies For the European Region</em> (TRANSFER).


CivETech ◽  
2018 ◽  
Vol 13 (1) ◽  
pp. 41-52
Author(s):  
Muchamad Arif Budiyanto
Keyword(s):  

Banjir yang sering terjadi di beberapa bagian belahan dunia termasuk Indonesia merupakan peristiwa alam yang tidak dapat dicegah. Peristiwa banjir merupakan akibat dari berbagai sebab misalnya hujan deras dan lama serta kondisi daerah yang tidak mampu menahan air hujan akan menimbulkan aliran permukaan yang besar. Bila palung sungai tidak mampu lagi menampung aliran permukaan yang besar maka terjadilah banjir.Dalam penelusuran banjir dikenal berbagai macam metode penelusuran banjir, salah satunya adalah metode yang terdapat dalam software HEC-HMS. Pada penelitian ini, dilakukan penelusuran banjir sungai Code di Yogyakarta. Metode yang digunakan dalam penelitian penelusuran ini adalah metode yang terdapat dalam software HEC-HMS, yaitu metode Muskingum.Penelitian ini diujikan parameter-parameter sungai tersebut jika DAS Code diberi hujan rerata dua puluh tahunan untuk penelitian banjir dua puluh tahunan. Dihasilkan kejadian banjir dua puluh tahunan diketahui waktu perjalanan (travel time) banjir dua puluh tahunan dari hulu ke hilir selama empat jam.


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