Download Earthquakes in Ireland David Andrews

David Andrews
Mr. Mc Donnell’s class
 Today I will be presenting my project on earthquakes in
Ireland
 In this you will see why there are few or no earthquakes in
Ireland.
An earthquake is the shaking or vibration of the earths
crust. It is caused by a sudden release of energy along a
fault line. E.g San Andreas fault
 Earthquakes occur where plates are destructive and
where plates are colliding.
 Ireland gets little earthquakes as it so far away from the
plate boundaries.
 Although there are still some fault lines under the
crust of Ireland.
 Ireland is several thousand miles from the nearest
plate boundary.
In the past 50
years, Ireland
has
experienced
earthquakes
in Donegal,
West Cork,
and Wexford.
 On the 26th of January 2012 an earthquake hit Donegal
of magnitude of 2.2 according to the Richter scale.
 The readings were found by a local school and their
use of geology equipment.
 In march 2014 a 2.6 magnitude earthquake affected
wexford.
 The quake which’s epicentre was off the coast of
wexford was measured in a welsh weather station.
 Wexford was hit by small tremors and there was very
little damage.
 In December 2013 a magnitude 2.6 earthquake hit the
west Cork area.
 The epicentre which was 25km south of Court Mac
Sherry left trees down, roofs of houses shaking and
locals left worrying.
 Shallow earthquakes
 Intermediate earthquakes
 Deep earthquakes
 Most destructive earthquakes.
 Focus found close to the earths surface so it is so
destructive.
 Eg. The Chilean earthquake magnitude 9.2
 These occur at lower depths in the mantle, when plates
melt.
 These types of earthquake are less destructive that
shallow earthquakes but still inflict damage.
 Eg. Earthquake in italy 2014 magnitude 4.
 Found very deep in earth mantle.
 Result of a change in chemical or mineral composition.
 Eg. San Andreas fault.