{"id":839,"date":"2026-08-31T15:26:25","date_gmt":"2026-08-31T15:26:25","guid":{"rendered":"https:\/\/criativogeek.com\/alerta-de-terremoto-como-funciona-e-o-que-fazer\/"},"modified":"2026-08-31T15:26:25","modified_gmt":"2026-08-31T15:26:25","slug":"alerta-de-cutremur-cum-functioneaza-si-ce-trebuie-facut","status":"publish","type":"post","link":"https:\/\/criativogeek.com\/ro\/alerta-de-terremoto-como-funciona-e-o-que-fazer\/","title":{"rendered":"Alert\u0103 de cutremur pe telefonul mobil: de ce sun\u0103, c\u00e2nd este gre\u0219it \u0219i ce trebuie s\u0103 face\u021bi."},"content":{"rendered":"

\u00cen jurul orei 2 diminea\u021ba, pe 14 februarie 2025, telefoanele Android din S\u00e3o Paulo, Rio de Janeiro \u0219i Minas Gerais au declan\u0219at simultan cea mai terifiant\u0103 alert\u0103 pe care o poate emite un telefon: un cutremur cu magnitudinea de p\u00e2n\u0103 la 5,5 pe coasta ora\u0219ului S\u00e3o Paulo. Oamenii s-au trezit, au p\u0103r\u0103sit locuin\u021bele, iar familiile au intrat \u00een panic\u0103.<\/p>\n

Nu a existat niciun cutremur. Observatorul Na\u021bional \u0219i centrul de seismologie USP nu au \u00eenregistrat niciun tremur. Google a dezactivat sistemul \u00een Brazilia, a investigat, a \u00een\u0103sprit criteriile de detectare \u0219i l-a reactivat \u00een aprilie acela\u0219i an.<\/p>\n

Acest episod este cea mai bun\u0103 lec\u021bie disponibil\u0103 pe aceast\u0103 tem\u0103, deoarece arat\u0103 dou\u0103 lucruri simultan: alerta este o tehnologie real\u0103 \u0219i util\u0103 \u0219i func\u021bioneaz\u0103 \u00eentr-un regim \u00een care erorile ocazionale fac parte din proiectare. Acest ghid explic\u0103 fizica din spatele ei, de ce apare eroarea, cum s\u0103 confirmi dac\u0103 un tremur a fost real \u0219i ce trebuie f\u0103cut \u00een secundele \u00een care apare avertismentul.<\/p>\n

Fizica care face posibil\u0103 avertizarea.<\/h2>\n

Un cutremur nu emite o singur\u0103 vibra\u021bie. Emite unde diferite care se deplaseaz\u0103 cu viteze diferite - \u0219i aceast\u0103 diferen\u021b\u0103 este cea care creeaz\u0103 oportunitatea de a avertiza pe cineva.<\/p>\n

THE Unda P<\/b> E primul care sose\u0219te. E rapid \u0219i relativ slab: de obicei e acel trosnet sau vibra\u021bie scurt\u0103 care precede restul. Apoi vine... Unda S<\/b>, Mai lent, dar mult mai puternic \u2014 este cel care zguduie mobila, r\u0103stoarn\u0103 obiectele \u0219i provoac\u0103 daune.<\/p>\n

Intervalul dintre cele dou\u0103 cre\u0219te odat\u0103 cu distan\u021ba fa\u021b\u0103 de epicentru. Aproape unul de cel\u0103lalt, aproape c\u0103 se suprapun. Departe, pot exista zeci de secunde \u00eentre ele.<\/p>\n

Aici intervine al treilea element: Semnalul internetului se propag\u0103 mult mai repede dec\u00e2t orice und\u0103 seismic\u0103.<\/b>. Dac\u0103 un senzor din apropierea epicentrului detecteaz\u0103 unda P \u0219i trimite o alert\u0103 de re\u021bea, alerta va dep\u0103\u0219i unda S pe traiectoria sa \u0219i va ajunge \u00eenaintea acesteia \u00een ora\u0219e mai \u00eendep\u0103rtate.<\/p>\n

Asta e tot. Nu exist\u0103 predic\u021bii, nu exist\u0103 ghiciri: exist\u0103 o curs\u0103 \u00eentre valul distructiv \u0219i notificare, iar notificarea se transmite mai repede.<\/p>\n

Cum a devenit telefonul mobil un seismograf<\/h2>\n

Mi\u0219carea ingenioas\u0103 a sistemului Android a fost s\u0103 realizeze c\u0103 senzorul necesar se afla deja \u00een buzunarul fiec\u0103ruia. Accelerometrul - aceea\u0219i component\u0103 care rote\u0219te ecranul atunci c\u00e2nd pui dispozitivul jos - este suficient de sensibil pentru a \u00eenregistra vibra\u021biile.<\/p>\n

Un telefon mobil, de unul singur, este inutil ca senzor: vibreaz\u0103 c\u00e2nd cade pe canapea, c\u00e2nd trece un camion, c\u00e2nd mergi. Ceea ce transform\u0103 zgomotul \u00een date este... cantitate<\/b>. C\u00e2nd mii de dispozitive din aceea\u0219i regiune \u00eenregistreaz\u0103 vibra\u021bii \u00een acela\u0219i moment, cu semn\u0103tura caracteristic\u0103 unui cutremur, coinciden\u021ba \u00eenceteaz\u0103 s\u0103 mai fie o coinciden\u021b\u0103.<\/p>\n

Rezultatul este cea mai mare re\u021bea de detectare seismic\u0103 din lume, construit\u0103 f\u0103r\u0103 a instala niciun senzor nou. \u00cen regiunile cu pu\u021bine seismografe profesionale - a\u0219a cum este cazul \u00een mare parte a lumii - aceasta a schimbat radical regulile jocului.<\/p>\n

De ce a e\u0219uat sistemul \u00een Brazilia<\/h2>\n

Avantajul re\u021belei celulare const\u0103 \u0219i \u00een fragilitatea sa. Depinde de interpretarea unui model statistic \u00een c\u00e2teva secunde, f\u0103r\u0103 a fi nevoie s\u0103 \u00eel verifici cu vreun institut.<\/p>\n

\u00cen cazul brazilian, combina\u021bia identificat\u0103 a fost activitatea \u00een mare, \u00een apropierea coastei ora\u0219ului S\u00e3o Paulo, cu o calibrare care nu a fost ajustat\u0103 la realitatea seismic\u0103 a \u021b\u0103rii. Brazilia este situat\u0103 \u00een mijlocul unei pl\u0103ci tectonice, nu la marginea acesteia - se confrunt\u0103 cu mici trepida\u021bii \u0219i \u00eentr-un mod diferit fa\u021b\u0103 de Chile sau Japonia. Un prag de detec\u021bie calibrat pentru o regiune cu activitate ridicat\u0103 se comport\u0103 prost aici.<\/p>\n

Dup\u0103 dezactivarea func\u021biei, Google \u0219i-a consolidat analiza tiparelor neobi\u0219nuite \u0219i a restric\u021bionat criteriile \u00eenainte de a o reactiva. \u00cen practic\u0103, sistemul a devenit mai conservator: o \u0219ans\u0103 mai mic\u0103 de alarme false \u0219i, ca un compromis inevitabil, o \u0219ans\u0103 mai mic\u0103 de a declan\u0219a un eveniment la limit\u0103.<\/p>\n

Este important s\u0103 \u00een\u021belegem dilema, deoarece nu are o solu\u021bie perfect\u0103. Un sistem care cere certitudine avertizeaz\u0103 dup\u0103 tremur, ceea ce este inutil. Un sistem care avertizeaz\u0103 \u00een c\u00e2teva secunde accept\u0103 erori ocazionale. Nu exist\u0103 o a treia op\u021biune.<\/p>\n

Cum s\u0103 confirmi dac\u0103 tremurul a fost real<\/h2>\n

Ai sim\u021bit ceva sau ai primit o alert\u0103 \u0219i vrei s\u0103 \u0219tii dac\u0103 s-a \u00eent\u00e2mplat cu adev\u0103rat. Mesajele de grup sunt cea mai proast\u0103 surs\u0103 posibil\u0103 - acolo se \u00eenmul\u021besc zvonurile. Surse care rezolv\u0103 problema \u00een c\u00e2teva minute:<\/p>\n

    \n
  • Institutele seismologice.<\/b> Centrele de cercetare seismic\u0103 public\u0103 evenimentele confirmate la scurt timp dup\u0103 ce acestea se produc, inclusiv magnitudinea \u0219i loca\u021bia. \u00cen Brazilia, centrele afiliate universit\u0103\u021bilor \u0219i Observatorul Na\u021bional sunt punctele de referin\u021b\u0103.<\/li>\n
  • Studii geologice interna\u021bionale.<\/b> Organiza\u021bii precum U.S. Geological Survey \u0219i Centrul European-Mediteranean men\u021bin h\u0103r\u021bi globale ale evenimentelor aproape \u00een timp real \u0219i acoper\u0103 \u0219i Brazilia.<\/li>\n
  • Aplica\u021bii ale re\u021belelor seismologice.<\/b> THE Ultimul cutremur<\/b>, De la centrul european-mediteranean, acesta afi\u0219eaz\u0103 evenimente confirmate \u00een primele minute \u0219i chiar v\u0103 permite s\u0103 raporta\u021bi ce a\u021bi sim\u021bit - form\u00e2nd o hart\u0103 colaborativ\u0103 a locului \u00een care a fost resim\u021bit tremurul.<\/li>\n
  • Ap\u0103rarea Civil\u0103 a statului dumneavoastr\u0103.<\/b> Pentru orice incident care prezint\u0103 un risc pentru public, acesta este canalul oficial.<\/li>\n<\/ul>\n

    Un avertisment \u00een leg\u0103tur\u0103 cu aplica\u021biile: MyShake<\/b>, de la Universitatea din California, apare pe aproape fiecare list\u0103 \u00een limba portughez\u0103, dar Avertismentul s\u0103u prealabil acoper\u0103 doar California, Oregon \u0219i Washington.<\/b>, Asta pentru c\u0103 depinde de sistemul de alert\u0103 al US Geological Survey. \u00cen Brazilia, este folosit pentru a vizualiza evenimente, nu pentru a primi avertismente \u00een avans. Instalarea lui \u0219tiind asta e una; instalarea lui crez\u00e2nd c\u0103 e\u0219ti protejat e cu totul altceva.<\/p>\n

    Ce trebuie f\u0103cut \u00een secundele alertei.<\/h2>\n

    Fereastra de oportunitate este prea scurt\u0103 pentru improviza\u021bie. Cei care nu s-au hot\u0103r\u00e2t dinainte ce s\u0103 fac\u0103 \u00ee\u0219i petrec secundele holb\u00e2ndu-se la ecran. Obiectivul este modest \u0219i specific: a nu fi lovit de ceva care cade<\/b>.<\/p>\n

    \u00cen interiorul casei<\/h3>\n

    Proteja\u021bi-v\u0103 capul \u0219i g\u00e2tul. Sta\u021bi departe de ferestre, oglinzi, rafturi \u00eenalte \u0219i orice at\u00e2rn\u0103 de tavan. Apleca\u021bi-v\u0103 l\u00e2ng\u0103 sau sub o pies\u0103 de mobilier rezistent\u0103. Nu alerga\u021bi afar\u0103 \u00een timpul cutremurului.<\/b> Majoritatea leziunilor se produc atunci c\u00e2nd oamenii se mi\u0219c\u0103, sunt lovi\u021bi de un obiect sau cad.<\/p>\n

    Pe strad\u0103<\/h3>\n

    Sta\u021bi departe de fa\u021bade, copertine, st\u00e2lpi \u0219i cabluri electrice. Spa\u021biile deschise sunt locul potrivit. Geamurile \u00eenalte reprezint\u0103 cel mai subestimat risc \u00een zonele urbane.<\/p>\n

    Conducerea<\/h3>\n

    \u00cencetini\u021bi calm, opri\u021bi \u00eentr-o zon\u0103 deschis\u0103, departe de pasaje supraterane, poduri \u0219i st\u00e2lpi \u0219i r\u0103m\u00e2ne\u021bi \u00een vehicul p\u00e2n\u0103 c\u00e2nd trec trepida\u021biile.<\/p>\n

    \u00centr-o cl\u0103dire \u00eenalt\u0103<\/h3>\n

    Nu folosi\u021bi liftul. Proteja\u021bi-v\u0103 acolo unde v\u0103 afla\u021bi \u0219i cobor\u00e2\u021bi sc\u0103rile doar dup\u0103 ce v-a\u021bi oprit.<\/p>\n

    Dup\u0103 ce trece<\/h2>\n
      \n
    • A\u0219tepta\u021bi-v\u0103 la replici.<\/b> Un tremor mai mic care urmeaz\u0103 celui principal este comun \u0219i poate dobor\u00ee orice a mai r\u0103mas instabil.<\/li>\n
    • Ai grij\u0103 la sticla de pe podea.<\/b> Pune-\u021bi pantofii \u00eenainte de a merge pe jos.<\/li>\n
    • Miros de gaz sau de s\u00e2rm\u0103 c\u0103zut\u0103:<\/b> Ie\u0219i afar\u0103 \u0219i sun\u0103 la compania de utilit\u0103\u021bi. Nu ac\u021biona niciun \u00eentrerup\u0103tor.<\/li>\n
    • Prefer s\u0103 trimit mesaje text dec\u00e2t s\u0103 sun.<\/b> Re\u021beaua de telefonie este aglomerat\u0103; mesajele text se transmit mai u\u0219or.<\/li>\n
    • Aranja\u021bi \u00een prealabil o persoan\u0103 de contact din afara ora\u0219ului.<\/b> \u00cen caz de urgen\u021b\u0103, apelul local este blocat \u00eenaintea apelului interurban.<\/li>\n<\/ul>\n

      Nicio aplica\u021bie nu poate prezice cutremurele.<\/h2>\n

      Trebuie spus explicit, pentru c\u0103 magazinul de aplica\u021bii e plin de lucruri care sugereaz\u0103 contrariul.<\/p>\n

      Nic\u0103ieri \u00een lume nu exist\u0103 o tehnologie capabil\u0103 s\u0103 prezic\u0103 o loca\u021bie specific\u0103, o zi specific\u0103 \u0219i o for\u021b\u0103 specific\u0103 care va provoca un cutremur. Ceea ce face \u0219tiin\u021ba este... pentru a estima riscul pe o scar\u0103 de decenii<\/b> pentru o regiune \u0219i detecta\u021bi tremurul \u00een primele c\u00e2teva secunde<\/b> dup\u0103 ce a \u00eenceput.<\/p>\n

      Avertizare timpurie \u0219i predic\u021bie sunt lucruri diferite, iar confuzia dintre cele dou\u0103 este ceea ce sus\u021bine aplica\u021biile cu abonament care promit imposibilul. Dac\u0103 promit s\u0103 prezic\u0103, este fie o \u00een\u0219el\u0103torie, fie ignoran\u021b\u0103 - \u00een ambele cazuri, dezinstala\u021bi-l.<\/p>\n

      Avertismentul cel mai important \u00een Brazilia<\/h2>\n

      Cutremurele distructive sunt rare pe aici. Ploile abundente, inunda\u021biile \u0219i alunec\u0103rile de teren nu sunt - ele ucid oameni \u00een fiecare an, exist\u00e2nd avertismente gratuite disponibile pe care aproape nimeni nu le-a \u021binut cont.<\/p>\n

      Vestea bun\u0103 este c\u0103 acela\u0219i ecran de set\u0103ri acoper\u0103 ambele. C\u00e2nd activa\u021bi alertele de cutremur, merit\u0103 s\u0103 verifica\u021bi \u0219i... alerte de urgen\u021b\u0103 wireless<\/b>, Aici sunt transmise prin anten\u0103 avertiz\u0103rile oficiale privind riscurile meteorologice. \u0218i merit\u0103 s\u0103 te \u00eenregistrezi prin SMS la Ap\u0103rarea Civil\u0103, care func\u021bioneaz\u0103 chiar \u0219i pe telefoanele mobile obi\u0219nuite f\u0103r\u0103 acces la internet - un detaliu care conteaz\u0103 mai ales c\u00e2nd se \u00eentrerupe curentul.<\/p>\n

      \u00centreb\u0103ri frecvente<\/h2>\n

      Ar putea sistemul s\u0103 fac\u0103 o alt\u0103 gre\u0219eal\u0103?<\/h3>\n

      Este posibil. Niciun sistem automat de detectare nu este infailibil, iar cazul din 2025 \u00een sine a dus la criterii mai stricte. Alarma fals\u0103 ocazional\u0103 este costul unui sistem care avertizeaz\u0103 \u00een c\u00e2teva secunde.<\/p>\n

      De ce l-a primit vecinul meu \u0219i eu nu?<\/h3>\n

      Alerta este trimis\u0103 \u00een func\u021bie de zona de impact estimat\u0103 \u0219i depinde de conexiune, versiunea sistemului \u0219i set\u0103rile active ale dispozitivului. Diferen\u021bele dintre telefoanele din apropiere sunt normale.<\/p>\n

      Chiar tremur\u0103 Brazilia?<\/h3>\n

      Tremur\u0103, \u00een general cu tremur\u0103turi slabe, datorit\u0103 amplas\u0103rii sale \u00een interiorul unei pl\u0103ci tectonice. Evenimente vizibile au loc \u0219i ocazional provin din regiunile \u00eenvecinate.<\/p>\n

      \u0218i pe iPhone?<\/h3>\n

      Sistemul descris aici este pentru Android \u0219i utilizeaz\u0103 dispozitive care ruleaz\u0103 acel sistem de operare. Pe iPhone-uri, men\u021bine\u021bi activate alertele de urgen\u021b\u0103 guvernamentale \u00een set\u0103rile de notificare.<\/p>\n

      Ar trebui s\u0103 ies din cas\u0103 c\u00e2nd primesc alerta?<\/h3>\n

      \u00cen timpul cutremurului, nu ie\u0219i afar\u0103. R\u0103m\u00e2i pe loc. Ie\u0219i doar dup\u0103 ce s-a oprit, acord\u00e2nd aten\u021bie geamurilor \u0219i structurilor.<\/p>\n

      Merit\u0103 s\u0103 \u00eel activezi chiar dac\u0103 locuie\u0219ti departe de o zon\u0103 cu risc ridicat?<\/h3>\n

      Merit\u0103 pentru c\u0103 nu cost\u0103 nimic, pentru c\u0103 aceea\u0219i configura\u021bie acoper\u0103 riscul meteorologic \u0219i pentru c\u0103 po\u021bi c\u0103l\u0103tori.<\/p>\n

      Rezumat<\/h2>\n

      Alerta telefonului mobil nu prezice nimic. Detecteaz\u0103 \u00eenceputul cutremurului cu ajutorul unor senzori r\u0103sp\u00e2ndi\u021bi \u00een toat\u0103 zona \u0219i folose\u0219te avantajul internetului fa\u021b\u0103 de undele seismice pentru a-i avertiza pe cei care nu au fost \u00eenc\u0103 afecta\u021bi. Acest lucru dureaz\u0103 c\u00e2teva secunde - iar secundele sunt suficiente pentru a te \u00eendep\u0103rta de o fereastr\u0103.<\/p>\n

      Va mai face gre\u0219eli din c\u00e2nd \u00een c\u00e2nd, a\u0219a cum a f\u0103cut \u00een Brazilia \u00een 2025. \u0218tiind asta nu e un motiv s\u0103-l opre\u0219ti: e un motiv s\u0103 nu intri \u00een panic\u0103 c\u00e2nd sun\u0103, s\u0103 \u0219tii unde s\u0103 verifici dup\u0103 aceea \u0219i s\u0103 te fi hot\u0103r\u00e2t dinainte ce s\u0103 faci \u00een timp ce se aude.<\/p>","protected":false},"excerpt":{"rendered":"

      \u00cen jurul orei 2:00, pe 14 februarie 2025, telefoanele Android din S\u00e3o Paulo, Rio de Janeiro \u0219i Minas Gerais...<\/p>","protected":false},"author":1,"featured_media":882,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_revidia_rewards_active":"","_mc_subtitle":"","footnotes":""},"categories":[8],"tags":[],"class_list":["post-839","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-utilidades"],"yoast_head":"\nAlerta de terremoto no celular: por que toca, quando erra e o que fazer - Criativo Geek<\/title>\n<meta name=\"description\" content=\"A f\u00edsica da onda P e da onda S, por que o alarme falso de 2025 aconteceu, onde confirmar um tremor e o que fazer em casa, na rua e dirigindo.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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