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The Landslide Warning System shall consist of three stages as follows:
(i) Stage 1 - Warning Stage
(ii) Stage 2 - Evacuation Stage
(iii) Stage 3 - Termination
Stage 1 - Warning Stage
Stage 1 Warning will be triggered based on any one of the following conditions whichever arises first:
1. The MMS observed rainfall Rm mm/hour or
2. The MPI confirmed measurement of displacement E mm/day or
3. Any inhabitant in the Landslide zone observed anomalities (cracks, subsudence etc)
(i) The MMS will constantly
monitor the amount of rainfall and will inform the MPI and NDRRMC and
the PIOR as soon as the Rm mm/hour rainfall is recorded. The local
Police will give warning to all inhabitants based on the information
from NDRRMC and PIOR.
(ii) The MPI will
constantly monitor ground movement where applicable and will inform the
NDRRMC and the PIOR as soon as a displacement of E mm/day is recorded or
if visual displacement of ground is noted.
(iii) However, under the
situation of Cyclone Class II Warning or above or in Torrential Rain,
the SMF will assist the MPI in taking readings of extensometers on hills
and will in turn communicate the information to the NDRRMC.
(iv) The designated
inhabitants will monitor the amount of rainfall on site using simple
rain gauges and will inform the local Police and MPI when the threshold
value is reached. The inhabitants will inform the Local Police and MPI
about anomalities. The MPI will proceed, after confirmation with Local
Police or the NDRRMC. The Local Police/SMF in collaboration with the
Local Authority will check the situation on site and inform the NDRRMC.
The Local Police will then gave warning to all the inhabitants.
(v) The warning will be
broadcast by the MBC and Private Radios. Communication to the affected
residents will be done by the Local Police by loudspeakers or other
(vi) The PIOR will notify all persons of the landslide communique.
(vii) The Local Police
shall, when issuing Stage 1 Warning, advise the inhabitants to complete
all preparations for an eventual evacuation and stand ready to vacate
their houses once the order to evacuate is issued. Arrangements should
be made by the Ministry of Health and Quality of Life and with the
assistance of the SMF for the transfer to hospitals of disabled people
who elect to do so. First Aid service providers shall be requested to
extend their assistance.
(viii) The NDRRMC will take
appropriate measures to muster all available resources and equipment in
order to assist in an eventual evacuation exercise and any salvage
The Stage 1 Warning will also be communicated by the PIOR to the following Ministries/ Departments/ Organisations:
- The Ministry of Health and Quality of Life
- The Ministry of Social Security, National Solidarity
- Ministry of Gender Equality, Child development and Family Welfare
- The Cental Water Authority
- The Central Electricity Board
- The Mauritius Fire and Rescue Service
Stage 2 - Evacuation Stage
Stage 2 is reached based on any one of the following conditions whichever ariases first:
(a) the MMS has observed continuous rainfall Rm mm/hour;
(b) the MPI has confirmed measurement of displacement E mm/day
(c) Inhabitants have confirmed heavy damage to their buildings, R mm/hour rainfall.
(i) The MMS will constantly
monitor the amount of rainfall and will inform the MPI and NDRRMC as
soon as continuous rainfall of R mm/hour is recorded. The Local Police/
SMF and Local Authorities will assis the inhabitants for evacuation
based on information from NDRRMC.
(ii) The MPI will
constantly monitor ground movement and will inform the NDRRMC as soon as
a displacement E mm/day is recorded or if Visual displacement of ground
is noted. The Local Police/ SMF will assist the MPI in the situation of
Cyclone Class II or above or Torrential Rain.
(iii) The designated
inhabitants will continue to monitor the amount of rainfall using the
simple rain gauges and will inform MPI and Local Police when R mm/hour
of rainfall is recorded and same will be communicated to the Director
of MMS who will confirm the recording and transmit the information to
the NDRRMC. The inhabitants will inform the Local Police/ SMF when they
notice heavy damage to their buildings and will evacuate by themselves
(voluntary evacuation). The Local Police/ SMF will check the situation
on site and inform the NDRRMC. The Local Police/ SMF and Local
Authorities will assist the inhabitants for evacuation.
(iv) The NDRRMC will also
inform the Minister of Environment, Sustainable Development and Disaster
and Beach Management and Secretary to Cabinet and Head of the Civil
Service or in his absence, the Senior Chief Executive, Home Affairs.
(v) The evacuation order will be broadcast and communicated to the appropriate inhabitants in the same manner as in Stage 1.
As Stage 2 is reached and
evacuation is in progress, the various Ministries/ Departments/
Organisations involved should actively set in motion arrangements for
which they are responsible.
Stage 3 - Termination
A close monitoring and
stocktaking exercise will be undertaken by relevant authorities after
stabilization of ground movement has been noted. As in the case of
previous stages, the recording will be continually monitored by the MMS
and the MPI and the data communicated to the NDRRMC. The NDRRMC will
then pass on the information to the Council/ Crisis Committee. The
all-clear signal will be given after a meeting of the Council/ Crisis
Committee when the following conditions have been reached;
(a) Inhabitants have confirmed no new anomalities, or
(b) the MMS has observed no rainfall for three days or
(c) the MPI has confirmed measurement of displacement 0 mm a day
The Local Authority/ Police will inform the inhabitants of the termination of the evacuation stage.
A Landslide Communique will be issued by the NDRRMC in consultation with the MPI and the MMS.
Distribution of Landslide Communique