最終餘震英語怎麼說及英文翻譯
① 急!!幫我翻譯成英文。。不要用金山詞霸一類的翻譯器
China Geological Survey Bureau of the initial monitoring and evaluation finds that the Wenchuan earthquake in the Indian plate is subcting to the Asian plate, causing rapid uplift of the Tibetan Plateau result, the focal depth of 10 km - 20 km, ration is longer, so a huge destructive. • Press on the 18th learned from the Ministry of Land, 15 years, China Geological Survey Bureau of the convening of Wenchuan earthquake and its inced secondary geological disasters Analysis Society, the China Land and Resources aerogeophysical Remote Sensing Center, China Geological Environmental Monitoring Institute, Chinese Academy of Geological Sciences , the Chinese Academy of Geological Sciences Geology, geological mechanics, and other units of the monitoring and evaluation experts, based on survey findings of the disaster to "consultations" on the initial formation of three conclusions.
Slide 3: • First, the Indian plate subction to Asia, resulting in rapid uplift of the Qinghai-Tibet Plateau. Slowly east plateau of material flows on the plateau along the eastern edge of the Longmen Shan belt eastward extrusion, rigid block under the Sichuan Basin, encountered stubborn blocked, resulting in a long-term accumulation of tectonic stress energy, culminating in Longmenshan Beichuan - Yingxiu the sudden release of the region.
Slide 4: • Second, the thrust, D, squeeze-type fault earthquake. Seismogenic structure is the central Longmen Shan fault belt, in the extrusion under stress from the southwest to north east thrust movement; the earthquake rupture earthquakes belonging to a one-way, from southwest to north east migration, causing aftershocks to the north and the East expansion; compressional thrust-fault earthquakes in the main shock, the stress propagation and release process is relatively slow, and may lead to greater intensity of aftershocks, continuing a long time. •
Slide 5: • The third is shallow earthquakes. Wenchuan earthquake does not belong to the deep effect of plate boundaries, occurred in the crust brittle - ctile transition zone, focal depth of 10 km - 20 km, so a huge destructive. •
② 關於地震的詞語英文翻譯
表示地震的詞:
earthquake
quake
shake
shock
tremor
temblor
(地震)發生於...:
hit... 襲擊,打擊,使遭受
strike... 突然發生
shake... 搖;搖動;搖撼
jolt... 使顛簸,搖晃
rock... 搖,搖動,使振動
roll across... 波動,起伏,橫搖
rip through... 裂開,破開;突進,橫撞直闖
破壞程度(小→大)
damage 損害,損傷;〔口語〕傷害,毀壞。
destroy 毀壞,破壞;摧殘。
shatter 破壞;搗毀;破滅。
devastate 蹂躪,破壞;使荒廢;毀滅。
level 推倒,夷平。
flatten 夷為平地。
地震學相關詞彙:
seismological 地震學上的
seismology 地震學
seismograph 地震儀
seismographer 地震學家
aftershock 餘震
smaller tremors 小地震
epicenter 震中
magnitude 震級
Richter Scale(1—10) 里氏震級
earthquake monitoring 地震監控
tsunami 海嘯
tsunami warning system 海嘯預警系統
tidal waves 潮汐波,浪潮
natural disaster 自然災害
tragedy 災難
wreckage 殘骸
death toll 死亡人數
survivors 倖存者
victims 受災者
international contributions 國際援助
evacuation 撤離
rescue team 救援小組
③ 汶川地震英語作文(80詞左右)
汶川地震英語作文(80詞左右)
Wenchuan earthquake since the founding of People's Republic of China since the greatest impact of an earthquake, magnitude since August 15, 1950 Medog Tibet earthquake (8.5) and in 2001 Alexander Kunlun earthquake (8.1) the third largest after the earthquake, a direct and serious disaster-stricken areas of 100 thousand square kilometers 汶川地震
在這次四川的地震。許多人民受傷並且死亡。可能再也看不到家人,離開這個世界。我們不可能去那裡幫忙,所以只能默默地祈禱。我們比他們幸運,但是我們都是中國人.我希望我可以盡量幫著做一些事情,例如,向他們捐錢。如果我們每個人捐贈20元,我們將至少捐贈數萬。這可能可以幫助他們。讓他們度過難關。我們一起進入行動!
汶川地震英語作文
關於5。12四川汶川地震的英語作文閱讀()評論()發表時間:2008年06月26日04:33本文地址:qzone。qq/blog/838439006-1214425981Everyo
汶川地震英語作文:
汶川地震英語作文100詞
今天,我去外婆家的田野上尋找春天留下的足跡。
遠遠望去,田野一片片枯黃,這好像不是一個春暖花開,萬物復甦的春天。突然,我眼前一亮,發現遠處有一塊開滿油菜花虧簡的田野,那金燦燦的油菜花使整片廣闊的土地變得春意盎然。
我不由自主地向油菜花里跑去想徜徉於那片金燦燦的花海。一陣東風吹來,沁人心扉的花香,頓時撲鼻而來,我不禁陶醉於其中,又有誰能夠抗拒這么芬芳撲鼻的花香呢?
再走近點,我可以清楚地看清它們那矯健的身姿,亭亭玉立。站立在田野上,好像是一位美麗的少女正向別人展示它那美麗的身姿,一陣風吹來它又開始翩翩起舞,真是美得無法形容。
啊!原來油菜花田,就是春天留下的足跡,春天也就在我們的身邊。
08汶川地震英語作文
<當地震來臨時> 中文
當唐山大地震癒合了,
當98年洪災大江東去的時候,
當二月暴雪被人心暖化的時候。
5月12日呀!
就是這個5月12日,
大地一聲巨響,
汶川被卡在了命運的咽喉上。
強震,暴雨,泥石流,
我看見了道路坍塌亮空棗,
房屋灰飛煙滅。
我看見老人,中年,
還有那些正在朗朗讀書的孩子們,
就這樣消失在咫尺之外的地平線上。
為什麼我的眼裡滿含淚水敬拆?
那是在廢墟下面,
有個聲音微息而又依然響亮,
「我現在還活著,我很高興。」
那是在雲層上面,
4999米的高空,跳傘兵映襯大地最吉祥的雲朵,
有一位老人,
他日理萬機。
仍夜以繼日身臨最前緣地帶。
在殘垣和頻繁的震盪中,
他矍鑠的背影,像一堵高大穩固的牆,
將所有的災難拒之門外。
<當地震來臨時>英文
When the Tangshan big earthquake healed, when east 98 year flood disaster great river goes time, works as in February the storm by the will of the people warming time. on May 12! is this on May 12, a earth bang, Wenchuan by card on destiny pharynx and larynx. macrosei *** , rainstorm, mud-rock flow, I saw path collapsing, the house ash flies the *** oke to extinguish. I see old person, the middle age, also has these the children who ringing studies, like this vanishes outside very close on the horizon. why does in the my eye contain the tears pletely? that is under the ruins, has the sound micro rest and stillResounding, 「I also am living now, I am very happy.」 that is above the cloud layer, the 4999 meters upper airs, the jumping paratrooper plements the earth most propitious clouds, has an old person, he takes constant care of the many affairs of sate. still day and night body near most frontal zone. in remnant wall and in frequent shake, he the healthy back, looks like a big stable wall, all disasters will keep them out.
汶川地震英語作文(初二)
Since 12 May, 2008 I've been watching everything concerning Sichuan earthquake with deep sorrow. It's one of the terrible disasters and tragedies in history. The dreadful number of deaths has been growing every day. We are unlucky because such a great misfortune happened to us, but we are lucky because after the earthquake numerous support and assistance e from the whole country and throughout the whole world.
This is a battle against disasters joined by the whole country. In the battle we can only see the brilliant side of human beings. Numerous names like Tan Qianqiu should be loved and remembered forever.
Besides donation and close attention, I can do nothing but pray for the victims, those who are still suffering from the great pains, those who lost their beloved ones, those who are sparing no pains searching for and rescuing people buried under ruins.
Closing my eyes, crossing my fingers, I pray for the victims...
May every blessing from here be sent to Sichuan to soothe their pains.
Let the death rest in peace
Let the living live stronger
汶川地震英語作文帶翻譯的
過程太多不先採na都不會寫
求一篇汶川地震的英語作文!急
自己寫,只要多寫寫災害的嚴重性,人他們堅強這幾個部分就行了!
關於汶川地震廖志的英語作文
我的愛人,讓我給你細細擦去手上的污泥,就像你曾經溫柔地擦去我臉上的淚水。我的愛人,你寬闊的臂膀給了我棲息的港灣,更給了大震中四個孩子生命的新岸。男子漢也會累嗎,你怎麼躺下就不再起來?讓我跪下來,依然和你保持最近的距離,讓我為你溫暖冰涼的手指…… ——5月14日,張關蓉在擦拭丈夫譚千秋的遺體。在地震發生的一瞬間,德陽市東汽中學教師譚千秋雙臂張開趴在課桌上,身下護著4個學生。4個學生都獲救了,譚老師卻不幸遇難。 5月13日夜,德陽東汽中學教導主任兼政治老師譚千秋的妻子張關蓉在為丈夫擦拭。在地震發生的那一刻,譚千秋張開雙臂護住4個學生,為這4個孩子贏得倖存的機會。「我們發現他的時候,他雙臂張開著趴在課桌上,身下地護著四個學生,四個學生都活了!」一位救援人員向記者描述著當時的場景。「你聽到了嗎?你護著的那四個娃兒都活下來了!都活下來了啊,你聽到了沒?」張關蓉泣不成聲,不停地對去世的丈夫深情呼喚。 12 日下午,崇州市懷遠中學教學樓因地震發生垮塌,在突如其來的災害面前,該校700 多名師生絕大多數順利脫險,但該校英語老師吳忠洪卻永遠離開了他愛著的學生們———他帶領孩子們疏散時,聽到有學生掉隊,義無反顧地從三樓返回四樓,這時樓體突然垮塌,吳忠洪和幾名孩子被吞噬…… 學校副校長李巨集成說,這棟四層教學樓有12 個班,下午1 時50 分開始上課,就在第一節課快要結束時,突然,地面開始搖晃。大樓搖晃了約1 分鍾時,中間裂開一條長長的縫,樓體裂成兩半。大部分孩子在老師的帶領下,從兩個樓梯撤離到地面。當時,吳忠洪老師正在四樓給初一(5)班上英語。該班的男學生小斌(化名)描述了當時的情景:教室突然晃動起來,他和同學都嚇得尖叫,「同學們,不要慌,什麼都不要帶,跟著我往下跑!」吳老師揮著手,示意全班同學跟著他往外跑。當時樓梯口擠成一團,初一(5)班的絕大部分學生跟在吳老師後面。突然,後面的同學喊了一聲:「教室里還有兩名同學……」「吳老師顯得很緊張,馬上轉回身,我們已經到三樓樓梯口了,結果他又往四樓上跑,我們跑到樓下,房子就垮了,吳老師不見了……」小斌哽咽著說。接到報警後,崇州市 *** 主要領導率領武警、公安、消防、衛生等部門趕到現場,展開搜尋工作。搜救進行了整整一夜,13 日早上6 時多,救援人員才從垮塌的殘磚中找到吳忠洪,他已經永遠停止了呼吸。據李校長說,經過清點,除了吳忠洪外,還有4 名學生不幸遇難。記者了解到,吳忠洪老師今年45 歲,已在教學戰線上工作了28 年。 消防戰士跪地落淚:求求你們讓我再去救一個 5月12日3時10分左右,綿竹市消防大隊陳軍帶領消防中隊第一時間趕往武都小學實施救援。 武都小學的教學樓坍塌了大半部分,下面至少埋壓了100多個師生。雖然沒有特勤工具,但戰士們很快徒手展開救援。19歲的荊利傑第一個奔向了廢墟,開始了長達3天時間的救援。餘震不斷發生
汶川地震母親簡訊感想英語作文
If earthquake happened,firstly,don't panic and calm down.Secondly,find some safe place to stay and don't run in such a hurry.If in the room,one should hide himself/herself under something hard,such as desk,talbe or even bed and keep away from shelf and cupboard,and never take a lift to go downstairs.If in the open air,find an open place and never get close to cars or waterside.Thirdly,because when earthquake happen,there are also lots of other troubles to take place,for example fire.So we should help each other when we meet trouble
汶川地震我們怎樣做英語作文
May 12 had remained a grant scar in Chinese people' heart.especially heavily broken Wenchuan people's ,who were lose their relatives .
The brutal earthquakes had killed numerous lifes ,every persons inmersed in sadness .but except the grant sadness ,what is the most important ting must to consideration about the earthquake .
The earthquake just like the God 's order , that we can't defence it .
But except that we have more works to do .
Firstly , we must to strengthen the knowledge about earthquake wildspread in nomally people .especially the people who are live in the areas where the earthquake are frequent.
Secondly,the Country's Finaice Bureau muste investment more money to the relative areas .Such as constructing more firmly buildings .
Last bu not the least , we must have courage and confidence to over e the earthquake which isn't so dreadful !
其實我都不知道你是想要寫什麼,寫了一篇關於地震的短文拿去參考吧!
④ 急需一篇《唐山大地震》的英文簡介,250單詞左右,外加中文翻譯
唐山大地震,是1976年7月28日,發生於中國唐山的里氏7.8級大地震。造成242769人死亡。亦有電影《唐山大地震》,由馮小剛執導。根據小說《餘震》改編,描述1976年唐山地震中,一位母親只能選擇救姐弟之一。母親最終選擇救了弟弟,但姐姐卻奇跡生還,後被解放軍收養,32年後家人意外重逢,心中的裂痕等待他們去修補的悲感情節,再一次勾起了當代人們對那一段慘痛災難的回憶!2010年7月12日,《唐山大地震》在河北省唐山市舉行全球首映式。此外,還有電視劇《唐山大地震》。
Tangshan earthquake in 1976 on july 28, is there in china of the tangshan earthquake 里氏 at rest for7.8 class. create 242769 deaths. are the tangshan earthquake, directed by 馮小剛. according to the 餘震 a description of the tangshan earthquake in 1976, and a mother can only choose one of saving sister. the mother finally opted for a brother, sister was a miracle, is survived after the adoption of the 32 years after the reunion, waiting for them to mend the cracks of feeling, once again called forth the people to the bitter memories of the disaster of july 12. by 2010, the tangshan earthquake in hebei province 唐山市 a global premier. in addition, television dramas the earthquake of tangshan.Once again called forth the people to the bitter memories of the disaster of july 12. by 2010, the tangshan earthquake in hebei province 唐山市 a global premier. in addition, television dramas the earthquake of tangshan.
⑤ 高分 急需關於地震的 要用英語的
Earthquake refers to the internal forces in the lithosphere under-ran off the breakdown occurred, within the Earth's seismic waves can be released in the form of a strong, which led to a certain extent the ground shook.
There are many reasons for the earthquake, according to the causes of earthquakes, earthquakes can be divided into the following categories:
1. Tectonic earthquake
As the deep underground rock dislocation, the breakdown caused by the earthquake known as tectonic earthquake. Such an earthquake occurred most frequently, also the most destructive power, the world seismic account for about 90%.
2. Volcanic earthquakes
As the role of the volcano, such as the magma caused by seismic activity such as volcanic as the earthquake. Only in the zone of volcanic activity may have occurred before the volcanic earthquakes, an earthquake of such earthquakes around the world accounts for only about 7%.
3. Earthquake collapse
As the cave on the ground floor or at the top of the mine collapse caused by an earthquake known as the earthquake collapse. Such an earthquake the size of the relatively small number of very few, if any, tend to occur in the limestone cave clouds or large-scale mining of underground mining.
4. Earthquake-inced
Due to water storage reservoirs, oil fields, such as water triggered by seismic activity known as the earthquake-inced. Such an earthquake only in certain specific fields or reservoir areas.
5. Artificial earthquake
Underground nuclear explosion, explosives and blasting ground vibration caused by man-made artificial known as the earthquake. By the man-made seismic activity caused by the earthquake. Instries such as blasting, the vibration caused by underground nuclear explosions; carried out in the deep well water, as well as large high-pressure reservoir after the water has increased the pressure on the earth's crust, sometimes inced by an earthquake.
An earthquake occurs, the most basic is a row of ground vibration, the shaking is obvious. In the earthquake zone who are in great sway until the first is sometimes beat up and down. This is because the seismic waves from ground to ground, the first wave arrived because. Then have a big wave amplitude of the shaking of the horizontal direction is the main reason for disasters caused by earthquakes.
Earthquake on the landscape have a significant impact on the natural world, the most important consequence of a disruption on the ground and cracks. The earthquake fault surface often stretching to several dozens of kilometers, often with obvious from the mistake and the level of vertical distance wrong, to reflect the changes in the structure of the Office source characteristics. However, not all the fault surface and the source directly linked to the movement, they also may be e to seismic waves caused by secondary impact. In particular, the surface area of thick sediment, the sloping edge of the road on both sides of the river bank and often to crack, which is often e to the terrain, in the side of not relying on the conditions so that the shaking loose topsoil and crack. The earthquake shaking so that the surface soil subsidence, the shallow water along the way will be squeezed by rising to the surface cracks formed to take water sandblast phenomenon. Large earthquakes can change the local terrain, or uplift or subsidence. Urban and rural areas to make split-path, distortion of the tracks, bridges broken. In the modern city, e to the breakdown of buried pipes and cables have been cut off caused by water, power and communications disrupted. Gas, radioactive materials and toxic gas leak can lead to fire and toxic, radioactive contamination, and other secondary disasters. In the mountains, landslides and earthquakes can cause landslides buried villages and towns often caused by the tragedy. The Mount rivers and landslides blocked in the upper reaches of the lake to form the earthquake.
Earthquake refers to the land (lithosphere) rapid fibrillation. By the earthquake can be divided into two main causes: tectonic earthquakes and volcanic earthquakes. Tectonic earthquake on the impact of the greatest human beings. Such an earthquake is e to the stress of the earth's interior, causing structural changes in the earthquake. Crust of rock, in the long-term effects of stress, will tilt and bend, when the accumulated stress over to the rock maximizing can bear, the vulnerable strata where it will lead to dislocation and fracture of a sudden, the long-term The accumulation of all of a sudden release of energy, and in the form of seismic waves to spread around, so that took place on the ground tremble.
There are two types of seismic waves spread in the form of: P-wave and S-wave. P-wave spread fast through the strong, so when an earthquake occurs, the first to reach the ground, this time at the epicenter of the people will be bumps up and down. Then wave to reach the earth began to shake around before and after, Fangwuta cause serious, earth and rock avalanche, the deformation of the road.
Usually the size of the earthquake magnitude to that. Seismic energy released is, the higher the magnitude. Increase in the magnitude of each level, an increase of about 30 times more energy.
In an area affected by the earthquake and the extent of the damage with that intensity, with the size of its magnitude, epicenter is directly related to the distance. In addition, the source and depth, geological structure, building on the ground and so on. The distance from the epicenter in the same place where sometimes there is also a great difference in intensity.
Earthquakes are a common natural phenomenon. Almost every day, the earth quake, an average of 500 million, of which felt tremors 50,000 times more than 7 earthquake on average less than 20 times.
Earthquake with a certain amount of time and space distribution. From the time point of view, there is an earthquake active and quiet periods alternating cyclical phenomenon. From space, the distribution of the earthquake was a certain band, said the seismic zone, mainly in the Pacific Rim and the Mediterranean - the two major Himalayan seismic zone. Pacific seismic belt in the world to focus almost 80% of the shallow earthquakes (0 km to 70 km), all of the source (70 km to 300 km) and deep-source earthquakes, the seismic energy released about 80% of the total energy.
1. Precursor of the pre-earthquake?
1. Groundwater anomaly.
As the rock on the ground floor by squeezing or stretching, so that the water table to rise or fall; or so that the crust in-house gases and some of the material with the overflow of water, ground water by bubble, the fashion, and so on Bianwei.
Bao is well water, too early precursor,
Muddy rain water, well water Tianzao risk,
Changes in water level, to spend up to take bubble,
Some change color or flavor change.
2. Abnormal animals.
Before the earthquake a day or two, cattle, horses do not rush into the ring, bouncing bounce chaos, more than bray, disturbed by the irritating, recing diet; some do not feed Zhu Yang, disturbed by the irritating, Luancuan run; Kuangjiao more than a dog; Not chicken into the nest, fear not cry; not ck into the water; chaos rabbit hop bounce, and alarm; pigeons in a few days before the earthquake Jing Fei, did not return to the nest; close to a pot of bees to fly away to a pot; response to the most sensitive rats , In the earthquake the previous day to a few days, the mice to run all of a sudden a light, and some small mouth moving rats; some of the snakes out of hibernation outside, a tree; bounce You panic shore fish, such as Potentilla belly.To light and sound manner.
And to light and sound is on the eve of an earthquake or an earthquake, sent from the ground or on the ground floor of the light and sound, it is important impending omen. Earthquake "before the main shock-aftershock of a shock," the law, it is necessary to grasp the attention to prevent
地震是指岩石圈在內力作用下脫然發生破裂,地球內能以地震波的形式強烈釋放出來,從而引起一定范圍內地面震動的現象。
發生地震的原因很多,根據地震的成因,可以把地震分為以下幾種:
1.構造地震
由於地下深處岩層錯動、破裂所造成的地震稱為構造地震。這類地震發生的次數最多,破壞力也最大,約佔全世界地震的90%以上。
2.火山地震
由於火山作用,如岩漿活動等引起的地震稱為火山地震。只有在火山活動區才可能發生火山地震,這類地震只佔全世界地震的7%左右。
3.塌陷地震
由於地下岩洞或礦井頂部塌陷而引起的地震稱為塌陷地震。這類地震的規模比較小,次數也很少,即使有,也往往發生在溶洞密布的石灰岩地區或大規模地下開採的礦區。
4.誘發地震
由於水庫蓄水、油田注水等活動而引發的地震稱為誘發地震。這類地震僅僅在某些特定的水庫庫區或油田地區發生。
5.人工地震
地下核爆炸、炸葯爆破等人為引起的地面振動稱為人工地震。 人工地震是由人為活動引起的地震。如工業爆破、地下核爆炸造成的振動;在深井中進行高壓注水以及大水庫蓄水後增加了地殼的壓力,有時也會誘發地震。
地震發生時,最基本的現象是地面的連續振動,主要是明顯的晃動。在震區的人在感到大的晃動之前,有時首先感到上下跳動。這是因為地震波從地下向地面傳來,縱波首先到達的緣故。橫波接著產生大振幅的水平方向的晃動,是造成地震災害的主要原因。
地震對自然界景觀產生很大影響,最主要的後果是地面出現斷層和地裂縫。大地震的地表斷層常綿延幾十至幾百千米,往往具有較明顯的垂直錯距和水平錯距,能反映出震源處的構造變動特徵。但並不是所有的地表斷裂都直接與震源的運動相聯系,它們也可能是由於地震波造成的次生影響。特別是地表沉積層較厚的地區,坡地邊緣、河岸和道路兩旁常出現地裂縫,這往往是由於地形因素,在一側沒有依託的條件下晃動使表土松垮和崩裂。地震的晃動使表土下沉,淺層的地下水受擠壓會沿地裂縫上升至地表,形成噴沙冒水現象。大地震能使局部地形改觀,或隆起,或沉降。使城鄉道路坼裂、鐵軌扭曲、橋梁折斷。在現代化城市中,由於地下管道破裂和電纜被切斷造成停水、停電和通訊受阻。煤氣、有毒氣體和放射性物質泄漏可導致火災和毒物、放射性污染等次生災害。在山區,地震還能引起山崩和滑坡,常造成掩埋村鎮的慘劇。崩塌的山石堵塞江河,在上游形成地震湖。
地震指大地(岩石圈)的快速顫動。地震按主要成因可分為兩種:構造地震和火山地震。構造地震對人類的影響最大。這類地震是由於地球內部應力,引起構造變動而發生的地震。地殼中的岩層,在地應力的長期作用下,會發生傾斜和彎曲,當積累起來的地應力超過岩層所能承受的最大限度時,岩層脆弱的地方便會發生突然斷裂和錯位,使長期積累的能量突然釋放出來,並以地震波的形式向四周傳播,使地面發生顫動。
地震波主要有兩種傳播形式:縱波和橫波。縱波傳播速度快、通過能力強,所以當地震發生時,首先到達地面,這時位於震中的人們會感到上下顛簸。接著橫波到達,大地便開始前後左右搖晃,嚴重時造成房倒屋塌、土石崩落、公路變形。
地震的大小通常用震級來表示。地震釋放的能量越大,震級越高。震級每增加一級,能量約增加 30倍。
某地區受地震影響和破壞的程度用烈度表示,其大小同震級、震中的距離有直接關系。此外還和震源深淺、地質構造、地面建築等有關。在距震中距離相同的地方有時烈度相差也很大。
地震是一種普通的自然現象。地球上差不多每天都有地震,平均每年發生500萬次,其中有感地震5萬次,7級以上的大震平均不到20次。
地震具有一定的時空分布規律。從時間上看,地震有活躍期和平靜期交替出現的周期性現象。從空間上看,地震的分布呈一定的帶狀,稱地震帶,主要集中在環太平洋和地中海—喜馬拉雅兩大地震帶。太平洋地震帶幾乎集中了全世界80%以上的淺源地震(0千米~70千米),全部的中源(70千米~300千米)和深源地震,所釋放的地震能量約佔全部能量的80%。
1.大震前有何前兆?
1. 地下水異常。
由於地下岩層受到擠壓或拉伸,使地下水位上升或下降;或者使地殼內部氣體和某些物質隨水溢出,而使地下水冒泡、發渾、變味等。
井水是個寶, 前兆來得早,
天雨水質渾, 天早井水冒,
水位變化大, 翻花冒氣泡,
有的變顏色, 有的變味道。
2. 動物異常。
震前一、二天,牛、馬趕不進圈,亂蹦亂跳,嘶叫不止,煩燥不安,飲食減少;一些豬羊不吃食,煩燥不安,亂跑亂竄;狗狂叫不止;雞不進窩,驚啼不止;鴨不下水;家兔亂蹦亂跳,驚恐不安;鴿子在震前數天驚飛,不回巢;密蜂一窩一窩地飛走;老鼠反應最靈敏,在震前一天至數天,老鼠突然跑光了,有的叼著小老鼠搬家;有些冬眠的蛇爬出洞外,上樹;魚驚慌亂跳游向岸邊,翻白肚等。
震前動物有預兆; 老鼠搬家往外逃;
雞飛上樹豬拱圈; 鴨不下水狗狂叫;
冬眠麻蛇早出洞; 魚兒驚慌水面跳。
3. 地光和地聲。
地光和地聲是地震前夕或地震時,從地下或地面發出的光亮及聲音,是重要的臨震預兆。 地震有「前震一主震一餘震」的規律,要注意掌握,防止