八点最热报 | 缅甸7.9级地震,不仅重创震央地区,甚至远至800公里外的泰国曼谷,也受到了严重波及。做为和泰国毗邻的我国,又是否需要开始防范与担心邻国的地震和余震已经越来越靠近我们?我们的高楼是否有足够的抗震力?(主播:梁宝仪)
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00:05The 7.9 earthquake in Burma not only hit the central region,
00:09but also Thailand, Bangkok, which is 800 kilometers away,
00:12became a severe disaster area.
00:13The skyscrapers were shaking violently, and the skyscrapers in the new buildings were also shaken to the ground.
00:18Why is the feeling of earthquake in Thailand not obvious, but the impact this time is so obvious?
00:23Similarly, Malaysia, which is almost zero earthquake at present,
00:27will soon have a devastating scene like Thailand because of an earthquake in the neighboring country?
00:33The neighboring countries of Malaysia are all in the earthquake zone.
00:37Do we need to start to guard against and worry that the earthquake and aftershocks in neighboring countries are getting closer and closer to us?
00:43If it really happens, can our skyscrapers stand it?
00:46Which cities are the most dangerous?
00:49In yesterday's special report, we mentioned that Thailand and Bangkok were rarely hit by a strong shock this time.
00:55In addition to the shallow earthquake,
00:57there was also a magnified effect on the earthquake wave due to the loose earthquake in Bangkok,
01:02which led to a higher degree of destruction.
01:04Wu Tianlai, Senior Lecturer in the Department of Earthquake and Disaster Management at the National University of Thailand,
01:07further explained when he was interviewed today.
01:09In fact, Thailand and our country are not in the Huan Taipingyang volcano earthquake zone,
01:14and Bangkok, Thailand, is about 800 kilometers away from the central region of Burma.
01:19But this time it was significantly affected,
01:21mainly due to the impact of the surface wave of the earthquake.
01:25The surface wave spreads further,
01:28especially in areas that are easily affected by the loose earthquake.
01:31The earthquake in Bangkok, Thailand,
01:33is mainly composed of saturated clay, sand, and mud,
01:36with high water content,
01:38which makes the surface wave easily vibrate after entering the area.
01:41This also explains why the skyscrapers in Bangkok were significantly shaken,
01:46but the buildings on the first floor were hardly affected.
01:50However, due to the fact that our country is 2,000 kilometers away from the central region of Burma,
01:55and our country's geography belongs to the relatively stiff Huagang salt and Bianzhi salt,
01:59so the earthquake wave in Burma
02:01will not have much impact even if it really spreads to our country.
02:05Professor Zhang Jiqiang, Deputy Professor of Architecture at UCSI,
02:08said when he was interviewed,
02:10that if an earthquake of the size of the 7.9 earthquake in Burma
02:13happened directly in Malaysia,
02:16most buildings would not be able to withstand it.
02:19However, due to the fact that Malaysia is located in the suburb of Xunta,
02:22there has never been an earthquake of more than level 6 in history.
02:27Even in 2015, when the Sabah earthquake of level 6 occurred,
02:30many people were displaced,
02:32and buildings suffered minor structural damage,
02:35but no collapse occurred.
02:38Professor Zhang Jiqiang, Deputy Professor of Architecture at UCSI,
02:41said that Malaysia's architectural design has sufficient engineering details
02:44to resist domestically recorded earthquakes.
02:47As long as there are no large-scale earthquakes similar to those in Burma,
02:50domestic buildings still belong to the safe zone.
02:53Burma's 7.9 earthquake,
02:55which hit Thailand and Bangkok directly,
02:57caused major damage,
02:59and the new buildings collapsed.
03:01Will Burma also be hit by the strong earthquake wave of neighboring countries one day?
03:06Geological disaster scientist Wu Tianlai explained during an interview,
03:09although Burma is zero compared to Thailand,
03:11there is no need to worry too much.
03:12The main reason is that Burma's geological system
03:14is mainly composed of relatively stable limestone and decomposed rock,
03:17which is different from the loose soil of Bangkok,
03:19which will amplify the shock wave of the earthquake.
03:22Architectural scientist Zhang Jiqiang also believes
03:24that the current architectural standard of Burma
03:26is still enough to deal with the earthquakes and torrents below level 7 in history.
03:29If we talk about the same place,
03:31Burma is 2,000 kilometers away from here,
03:33and it is closer to Bangkok.
03:35And our earthquake in Burma
03:37we have a lot of limestone,
03:39and if it is in Kuala Lumpur,
03:41it is decomposed rock.
03:42So the soil they turned into
03:44is not as serious as that of Thailand.
03:46They are a lot of water-saturated sand.
03:49We are not.
03:50Basically, with the design of ordinary architectural structures,
03:53it basically needs to support
03:55an earthquake of the size of 6.0 to 7.0.
03:58There are generally no problems.
04:00But because we have never had
04:02such a large-scale earthquake,
04:04so we don't know how much
04:06buildings in Malaysia can withstand.
04:08Like many countries,
04:09occasionally in this earthquake,
04:11there will be some sudden structural collapse.
04:14It's not that their architectural design
04:16is actually not at that level,
04:18but in the construction process of the entire building,
04:21there may be some factors
04:23or some changes
04:25after the construction is completed,
04:27such as decoration, etc.
04:28These will affect the safety of the building.
04:30So we can't say very clearly
04:32how large the earthquake scale
04:34our buildings can withstand.
04:35Basically, in terms of a common sense,
04:37our current architectural standards
04:39are enough to deal with
04:41the possible destruction
04:43that will occur in our country.
04:47However, geological disaster scientist Wu Tianlai also pointed out
04:50that although the geological location of Malaysia
04:52is not located in the earthquake zone,
04:54it is necessary to be vigilant
04:55that an earthquake caused by
04:56the re-activation of the broken layer will still occur.
04:58And three places
04:59are confirmed by the National Earthquake Monitor Network
05:01as high-risk areas that need high attention.
05:04Our broken layer is in Bukit Tinggi.
05:06The broken layer will move by itself
05:08for re-activation.
05:09But it's not big.
05:10Its Richter scale is about 2.
05:12The more serious one is in Sabah.
05:14Sabah's fault re-activation is relatively strong.
05:17There was once a 5.9 Richter scale.
05:1918 people died.
05:20There is another one.
05:21We built a water dam in Taizhe Canyon.
05:23The impact of the water dam
05:24has made the remaining water very heavy.
05:25These are the three places.
05:26In addition to the fact that the broken layer is alive,
05:28it may cause an earthquake.
05:29Wu Tianlai said
05:30some places in Burma may also be affected
05:32by the earthquake
05:33caused by neighboring countries,
05:35especially the Philippines and Indonesia.
05:37But he emphasized that
05:38there is a certain distance between countries.
05:39Therefore, even if an earthquake wave from neighboring countries
05:41reaches our country,
05:42it will not cause serious damage.
05:44If the Philippines directly affects Sabah,
05:46it may have some location.
05:47Its Richter scale is about 2.
05:49Because it's far.
05:50Indonesia depends on where it is in Indonesia.
05:52It usually affects Singapore.
05:54There are some buildings you feel.
05:56Maybe it has Kuala Lumpur.
05:58Usually you will feel
05:59because we have tall buildings.
06:00If it's a low building,
06:01you won't feel it.
06:02Usually it will reach us
06:03at a Richter scale of more than 2.
06:05You may have some feelings,
06:06but there is no danger.
06:08Some of them may be angry.
06:09If we come here,
06:10it may be 2.
06:112 is also 3.
06:12If they are angry,
06:13it will not be very big.
06:15Because it is 200 kilometers apart.
06:16Geological disaster scientist Wu Tianlai emphasized
06:18that with the current historical records,
06:20the earthquake in neighboring countries
06:21will not have a destructive effect on our country.
06:23Architectural scientist Zhang Jixiang said
06:25that the buildings in our country
06:26have a sense of prestige
06:27that can basically resist
06:29the earthquake in neighboring countries.
06:30But there is no anti-earthquake,
06:32no-earthquake, and no-earthquake design
06:33specifically for earthquakes.
06:35In addition to the current
06:36lack of this vulnerability,
06:38adding these anti-earthquake designs
06:40will greatly increase
06:41the cost of building.
06:43From a professional point of view,
06:44I have also interviewed
06:45some structural engineers.
06:47Most people think that
06:48it is good to have such a
06:50pre-planning measure.
06:52It's just that
06:53because all these changes
06:55are related to the earthquake.
06:57Including our building costs,
06:59land prices, etc.
07:00It will all be affected.
07:01I don't know how many people
07:04can accept,
07:05for example, your house
07:06during the construction process,
07:07its price may increase.
07:09Mainly because you have to
07:10make stronger protection
07:12against this structure.
07:14Because we have not experienced
07:15such as Burma, Taiwan, Japan, etc.
07:18They have indeed experienced
07:20that pain.
07:21Because someone
07:22sacrificed for this matter.
07:24The building collapsed, etc.
07:25So the government must
07:27forcefully
07:28fix this matter immediately.
07:30But at present,
07:31because we have not experienced
07:33such a pain,
07:34if the government
07:35pushes it now,
07:36it will also receive
07:37a great deal of help.
07:41Although Malaysia
07:42does not belong to the earthquake era,
07:44Professor Zhang Jixiang,
07:46Vice Professor of Architecture
07:47at UCSI University pointed out
07:48that in the face of an earthquake,
07:49the public's ability to respond
07:51is very critical.
07:52He emphasized that
07:53the awareness of earthquake prevention
07:54should start with education,
07:56so that the public can master
07:57the basic knowledge of earthquake avoidance.
07:59For example,
08:00how to escape correctly,
08:01when there is an earthquake,
08:02you should immediately open the window,
08:03avoid the solid table, etc.
08:06China should start
08:07to popularize earthquake education,
08:08so that the people
08:09can build a stronger awareness
08:10of earthquake prevention
08:11in the next 10 to 20 years.
08:13At the same time,
08:14they will be willing to
08:15invest more costs
08:16in architectural safety
08:18to improve the overall
08:19ability to fight earthquakes.
08:22NASA Jet Propulsion Laboratory
08:23California Institute of Technology