Environmental: At least 91 people have been killed and upwards of 200 people have been severely injured following a 6.9-magnitude earthquake which struck the island of Lombok at 1826hrs local time on 05 August 2018. A tsunami warning was initially issued but has now been cancelled, however medical facilities and infrastructure, particularly in the North Lombok region, have been damaged. Hospitals in the region are at capacity, many have been evacuated with patients being treated in carparks and makeshift medical tents. Disruption to power supplies, cellular reception, and access roads has slowed the country’s National Disaster Mitigation Agency (BNPB) ability to assess the full extent of the damage. Rescue authorities have stated that much of the damage has hit Mataram, Lombok’s main city. This is the second large earthquake to have struck Lombok within a week’s time period, as it follows on from a 6.4-magnitude earthquake on the island on 30 July. Over 100 aftershocks have been recorded in the region after the initial quake. The impact of the disaster may be increased due to inclement weather conditions, with landslides a possibility, and further significant earthquakes possible. Due to these possible hazards, over 1,000 foreign and domestic tourists have been evacuated with only a few boats on beaches across the island.
The quake was also strongly felt in Bali, damaging shopping malls, a temple in the Ubud area, and Bali airport. Despite superficial damage to both Bali and Lombok’s airport, both remained operational throughout Sunday 05 August. Two people died in Denpasar, Bali while one died on the Gili islands; both destinations frequented by tourists.
Indonesia sits at the crossroads of three tectonic plates in a highly active seismic zone known as the Pacific Ocean ‘Ring of Fire’. It is estimated that 90 per cent of all of the world’s earthquakes occur in this area. As many as 500,000 earthquakes occur every year globally, with 100,000 noticeable to humans. In certain places, minor earthquakes occur almost constantly. Most earthquakes are natural occurrences, but human development has had an impact. The construction of dams and the impact of fracking for gas are thought to cause earthquakes or at least increase their impact. It has been estimated that on average, there are 18 major earthquakes every year (those registering 7.0-7.9 on the Richter Scale) and one great earthquake (those register 8.0 and above). In 2017, only seven earthquakes were recorded above 7.0 magnitude on the Richter Scale worldwide. Unlike volcanoes or tropical storms, it is presently impossible to predict when an earthquake will occur.
What to Expect:
Small to Moderate Earthquakes
Seismic movements which are lower on the Richter Scale can occur across the world, including in places like the United Kingdom, which is not on or near a major fault line. These earthquakes do not represent a disaster risk. When such quakes occur, you can expect:
- Shaking to occur for only a few seconds.
- Lights to move and some minor movement of objects to occur inside buildings.
- To feel a small amount of shaking under your feet if outside.
- To hear a bang if very close to the epicentre
The impact of larger earthquakes, which includes everything from 5.0 on the Richter Scale, largely depends on where they occur and at what depth. Their impact may be felt for several minutes. However, in general, when they do occur, you can expect the following.
- The ground to potentially shake violently, in some cases strong enough to knock you off your feet.
- To probably feel shaking followed by a sea-like rolling motion.
- Buildings may sway, and the earthquake is likely to cause a roaring sound.
- To feel swaying if in the upper floors of a high-rise building.
- Furniture and fixings may be thrown across the room, especially if unsecured, and windows may break.
- It is possible that fire systems will be triggered with sprinklers and alarms activated.
- You can also expect lights and power to go off.
If you are inside:
The first thing to do when feeling an earthquake tremor is to drop to your hands and knees so the earthquake does not knock you down. You should then cover your head and neck with your arms as protection from falling debris.
You should then look for cover. If you can move safely; a sturdy table is suitable, hold on to the legs so that it stays over you to offer protection from falling objects. If this is not available, crawl away from outside walls and next to inside walls away from windows or any fixtures or furniture which could fall on you. Remember: ‘drop, cover, and hold on’
If you are in bed when the earthquake occurs, you should stay in bed and cover your head and neck with a pillow unless there is something overhead that could fall on you and cause injury. At night, it is difficult to see any hazards or debris which have emerged and attempting movement in the darkness may result in further injuries.
If you are in a lift, get off at the next available floor and find cover.
Stay inside, do not rush to get outside and await the end of the tremors.
If you are outside:
If you are outside when shaking occurs, get to open space away from buildings, street lights, bridges/flyovers and overhead wires. Once in the open, you should ‘drop, cover, and hold on’. Then await the end of tremors.
If you are in a moving vehicle:
If driving when tremors begin, stop as quickly and safely as you can and apply the handbrake. Be aware of areas of potential landslides. Avoid stopping near buildings, trees, bridges, overpasses, and overhead wires. Once the earthquake tremors cease, proceed cautiously, avoid roads, bridges, and other infrastructure which may have been damaged by the earthquake.
If you are trapped:
If the worst happens and you become trapped it is important to remain calm and not move about or kick up dust. If you have a phone, try to use it to call for help. If possible, try tapping on a pipe or use a whistle so rescuers can locate you. Shouting should be a final measure taken as it is important to not inhale too much dust and debris.
If you are not trapped when tremors stop:
When shaking stops, leave the building if it is safe to do so and get to an open space away from any damaged areas.
If the building is undamaged, check for the smell of gas, turn it off at the main valve. If wiring is damaged turn that off at the main switchboard. Check for fires and evacuate the building if they are many or too large to safely extinguish.
Monitor local media through any means for information and instruction.
Check for any injuries and give treatment (provided you are trained to do so). Then assist with rescues if it is safe to do so.
Be prepared for a tsunami in coastal areas, learn if the area you are in is usually impacted by post-earthquake tsunamis. A strong earthquake that lasts more than 20 seconds in a tsunami zone will mean evacuation is imperative. If this is the case, once shaking has stopped, move inland and to higher ground immediately and continue to monitor for local instruction or evacuations. If you can see the waves you are still too close. Remain on high ground, tsunami waves can last up to eight hours or longer, only return when officials say it is safe to do so.
Maintain extreme caution in post-earthquake clean-up. Do not remove heavy debris alone and remember to use appropriate clothing and tools.
Be ready for aftershocks and be prepared to ‘drop, cover, and hold on’, should they occur.
Most earthquake-related injuries are caused by collapsing walls, objects falling, or glass shattering, rather than ground vibrations directly causing injury.
For those in Indonesia, it is strongly advised to follow the advice of local officials as rescue and rebuilding work takes place. It is also recommended that offices and other buildings in the region undergo detailed security assessments to include a seismic risk assessment. An earthquake plan should be put into place and all staff trained in what to do should one occur. It should also be noted that building foundations may be damaged by this most recent quake and any further significant seismic activity may cause deadly infrastructural impairment.
For most travel to Indonesian resorts such as Lombok, Solace Global would not advise clients of the need to employ enhanced security measures. For certain areas of the country and for certain traveller profiles, it may be advisable to employ enhanced security. All travellers should consider the use of travel-tracking technology with an intelligence feed. This should enable a traveller to be alerted of any security updates within their vicinity and to update others of their movements in case of an emergency.