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President's Message
David Bradshaw
Presidents Notes - Rapport  2 April 2019 President David welcomed guests, members partners and members.
Notices included;
Bill Strand gave us an update on fellowship activities that have taken place recently.
First, Ron and Jill McPherson won the petanque evening at Epsom Bowling club and were the recipients of the Bob MacMillan trophy.
Secondly, he advised us that on 30 May members will meet at Newmarket railway station and by train travel to the end of the line have lunch at a venue close to the end of the line and returned to Newmarket station later in the afternoon.
Thirdly we were advised that next Tuesdays meeting be followed by a round of golf at the Ellerslie pitch and putt course. So all those interested turn up to Ellerslie Pitch and putt after our meeting.
Finally, Roger Gower advised of the resurrection of the club’s snooker tournament to take place on 16 April at the Remuera club
Roger Harvey sought the assistance  of members to assist with packing a container load of medical equipment being sent to Fiji. Eight or so volunteers  are sought for that exercise. Please contact Roger Harvey
Please note our next meeting will be at Ellerslie Race Course 12.00pm for 12.30
Dates to put in your diary.
Rotary Leadership Seminar 30 & 31 March 2019 - see the flyer in the body of this Rapport
Circus Quirkus - 9 June 2019
The Garden Designfest is up and running. But sponsors are needed. If you know anyone whose shoulder can be tapped plase tell Paul Monk.
District Conference. Napier 2010 - Keep Rotary Real.  To book for the conference see the conference website -
Duties  - If you cannot undertake your rostered duty please arrange for some-one else to step in and do your duty.
Programme 9-Apr-2019 16-Apr-2019
Venue Lunch @ Ellerslie Lunch @ Ellerslie
Speaker Timothy Giles TBC
Introduction Resilience - Recovery from Brain Injury TBC
Thanks Roger Gower TBC
Rapport Colin Lucas Colin Lucas
AV Duty John Hawke David Weikart
Cash Desk Greg Carr John Hawke
Registration of Visitors Ron Halls John Long
Host to Visitors Roger Harvey BillMabey
  Alan Hayward Alastair Macfarlane
Attendance Register Terry Hibbitt Martin McGahan
Sunshine Boxes Richard Holden Brian McMath
  Patrick Learmonth Ron McPherson

Auckland Volcanoes - Dr Bruce Hayward
Our guest speaker was geologist Dr Bruce Hayward NZOM who spoke to us about the volcanic field upon which Auckland city sits.
Auckland is a city built on top of and out of its volcanoes. Scoria from many of the volcanoes has been used in our roads and has ballast for our railway lines. St Andrews Church one of Auckland’s oldest is constructed from bassault quarried from Auckland volcanoes.
Bruce told us that there are about 53 volcanoes in Auckland with an age range between 200,000 years old and 600 years old.
Only a few volcanoes in the Auckland Volcanic region remain more or less fully intact. Only one has not been quarried and several including Mount Smart, Little Rangitoto (adjacent to Upland Road) Elletts Mountain amongst others have been obliterated through quarrying.
Auckland’s volcanic landscape has been derived from three styles of volcanic eruption, explosive eruption where magma coming to the surface meets cold groundwater creating explosive blasts and pyroclastic surges. Bruce commented that these pyroclastic surges would kill everyone within 3 to 4 km of an explosion site.
Orakei Basin, tank farm, Onepoto Basin and Lake Pupuke are examples of these explosion craters.
The second type of eruption is a dry eruption where magma comes up through the throat of the volcano with a heavy guest mix as it comes out of the throat of the volcano the lava gas mix explodes and cools forming scoria. This is described as fire fountaining. Bruce commented that Mount Eden is an example of a fire fountaining vent. Included as examples of such volcanoes are at its outset are Mount St John and One Tree Hill.
The third type of volcano is an abusive eruption whereby lava pushes through the less stable scoria surrounding a fire fountaining vent and flows downhill low-lying areas. The speed and character of lava depends on its temperature and viscosity.
Fast flowing lava is called Pahoehoe lava from the description given to it in the Hawaiian Islands and slow moving lava, which looks remarkably like a slow moving, but hot, rock pile, is called A’a lava.
The distance lava flows is dependent on topography. The longest lava flow in Auckland is that which terminates the end of the Meola Reef. Until recently it was thought that lava flow originated at Mount Eden. Recent research undertaken at the Auckland University has disclosed that the source was in fact the lower parts of Mount John.  Mt Eden a later volcano simply sits on the old lava flow.
Bruce told us that all Auckland volcanoes are “one-off”. That is to say they erupt only once and then become extinct. This does not mean that the Auckland volcanic field is extinct rather it is dormant and is likely to spring into life at any time between next week or at the end of 5000 years. This is because there is no pattern that can be discerned in Auckland’s eruptive history. So where the next event will occur is anyone's guess.
Bruce noted that there is a web of sensors around the Auckland volcanic field designed to give warning, most likely to 3 days, of lava movement leading to an eruption so that those within 4-5 km of the predicted epicentre can be given the opportunity to evacuate. If a vent were to appear in a closely populated part of Auckland an evacuation would be an interesting exercise. The picture of the vent and lava flow above is taken from the recent eruptive event in Hawaii.  That event lead to several thousand people being evacuated and several hundred houses being destroyed by the lava flow generated by the main vent as it flowed into the sea.
Bruce's address was well received by those at the meeting especially as many of us live on the sides of Auckland's Volcanos or on the old lava flows.
John Overall - District Paul Harris Fellowship
Peter Ross on behalf of the District Youth Committee gave a well deserved District PHF award to John Overall for his efforts in relation to;
First his ongoing contribution to RYDA, and
Secondly his ongoing involvement in Interact including the recent charter of the Epsom Girls Grammar Interact club. John is also involved in the establishment of an Interact club at St Cuthbert’s.
Johns award was as said well deserved. - Congratulations John.