Home » Posts tagged 'DIAS Geophysics'

Tag: DIAS Geophysics

Earthquake Donegal, 2nd August 2017, M1.5

On the 2nd August at 05:46 UTC (06:46 local time) an earthquake of magnitude 1.5 occurred in Donegal (NE of Milford on the Fanad Peninsula). Location 55.11N, 7.59W, see figure below.

There are reports of this event having been felt in the area around Milford. Events of this nature are not uncommon in this region. The largest event recorded in this area was a magnitude 2.2 which occurred near Clonmany on 21st November 1994.

The event was recorded at stations of the Irish National Seismic Network (INSN) and the BGS, see seismic traces below.

2016-05-25 – Seminar: Eric Mandolesi

25 May 2016Seminar

When: 15:00 on Wednesday, 25 May 2016
Where: DIAS, Geophysics Section, 5 Merrion Square, Dublin 2, (library)

Speaker: Dr. Eric Mandolesi
Title: Yet another look at the rjMCMC algorithm as geophysics inversion engine: electromagnetic and ocean acoustics examples.

2016-04-16 – Earthquake near coast of Ecuador

A major M7.8 earthquake occurred near the coast of Ecuador on 16th April 2016 at 23:58 UTC (18:58 local time).
DATE                    :       16 April 2016
ORIGIN TIME       :       23:58 37s UTC
LAT/LONG           :       0.371° North / 79.940° West
DEPTH                 :       19.2 km
MAGNITUDE       :       7.8 Mw
LOCALITY          :      North-west coastal area of Ecuador, approximately 175km WNW of Quito.

A number of aftershocks have been recorded. The death toll, currently at 265 is expected to rise as collapsed buildings are searched. A tsunami alert issued for the pacific region has since been rescinded.

The first arrival at INSN was recorded at the VAL (Valentia) seismic station at 00:10:31 UTC on 17th of April 2016.


Below is as an image of the seismic traces of the the main event recorded on the stations of INSN.


2016-04-15 – Earthquake Kyushu, Japan

A major M7.0 earthquake occurred on the island of Kyushu, Japan on 15th April 2016 at 16:25 UTC (01:25 on 16th April local time).  A number of aftershocks have been recorded.  A tsunami alert was issued for Japanese costal areas.
The first arrival at INSN was recorded at the ILTH (Bellurgen, Co Louth) seismic station at 16:37:44 UTC.


Below is as an image of the seismic traces of the the main event recorded on the stations of INSN.


‘Applied Geophysics’ Undergraduate Module

Staff from DIAS Geophysics developed and delivered an intensive, one-week, course on ‘Applied Geophysics’. The course was delivered to final year geology students of UCD and TCD. Topics covered comprised: Gravity, Magnetics, Electrical and Electromagnetic and Seismic Methods.
The course took place in Dunsink Observatory.
This course was supported in terms of geophysical equipment provision by Apex Geoservices Ltd Minerex Ltd.
Guest lectures were given by the Geological Survey (Tellus) and by Tullow Oil PLC.