Umbiko wososayensi baseMelika mayelana nokubukwa okwenziwe ngaleso sikhathi okwenziwe ngalesosikhathi kanye neziphetho ekuhlaziyeni kwabo kushicilelwa kumagazini obukezelwa kontanga wezincwadi zokucwaninga nge-geophysical. Phakathi kokunye, ababhali balo msebenzi bachaza ukuthi lokho kudlazama komhlaba kuyathakazelisa kanjani futhi kufanelekile ukukhathazeka ngokukhathazeka abantu. Umthombo wamagagasi wokuzamazama komhlaba ezimweni zombili lapho ujule amakhilomitha nje angaphansi komhlaba (ngaphansi kwamakhilomitha angaphansi kwama-2,5). Okumangazayo, ngoba ukuzamazama komhlaba kwenzeka ekwephutheni eliseduzane leWyostch, kuvela cishe amakhilomitha ayishumi ngaphansi kobuso (cishe amamayela ayisithupha). Kepha isimilo esithakazelisa kakhulu samahlaya ngoSepthemba 2018 nango-Ephreli 2019 kwakuwukuntuleka kwamagagasi amagagasi ngaphansi kwemkhakha yentaba-mlilo ye-black-rock desert.
Ngenxa yokuba khona kwamanethiwekhi amabili e-seismometer ngasikhathi sinye, ososayensi bakwazile ukuqoqa inani elikhulu lemininingwane kulolu chungechunge lwe-Imptus. Eqinisweni, ngokusho kombhali oholayo ocwaningweni lukaMaria Mesimeri (University of Utah) ovela e-University of Utah, kungamathuluzi amabili asiza ekutholeni uhlobo lokuzamazama komhlaba okungajwayelekile. Ukusakazeka kwamagagasi ngasikhathi sinye ukuqopha i-Utah Regional Seismic Network Seismometers kanye nenethiwekhi esatshalaliswa izinzwa zephrojekthi ye-Forge zibekwe ngokuhleleka komnyango wamandla e-US.
Yini efuna ukwazi, inethiwekhi ye-doe stone yazwela kakhulu eyunivesithi - ibone ngenani lama-jolts angama-35 okuzamazama komhlaba okungu-35 ngokumelene no-19 Umhlaba. Imvamisa, ukuzamazama komhlaba okubuthakathaka okunjalo akunakwenzeka ukuthi ukuzamazama komhlaba okubuthakathaka okunjalo, nokho, ecaleni elichaziwe, i-hypocententer yayisondele kakhulu ebusweni, futhi amadivaysi e-orbital akwazi ukulungisa ukunyakaza kwawo.
Ngokohlobo lwamagagasi okuzamazama komhlaba kanye nendawo yokuvela, ososayensi baphetha ngokuthi umthombo wabo wawukuhamba komphakathi owuketshezi othile. Inketho ibili kuphela: noma amanzi ngaphansi kwesenzo sokushisa okuphezulu nengcindezi eqhutshwa emadwaleni, noma ukuthutha kwazo kwajabulisa ukunyakaza kwe-magma. Endabeni yokugcina, njengamanothi aMesmen, ukuqhuma kwesaba kusenesikhathi - akukho okubonisa ithuba elinjalo. Kepha ososayensi manje bazobe besondele kakhulu ukuze babuke lesi sifunda.
Insimu ye-Black Rock Desert Volcanic (insimu emnyama ye-Black Rock Deser Deserf) akufanele idideke ne-Black Rock Desert, eyaziwa ngomkhosi we-Brushed Man, amarekhodi wejubane kanye nokuhlolwa kwemicibisholo ye-amateur. Kunamakhilomitha angaba ngu-600 phakathi kwawo futhi asezifundazweni ezahlukahlukene. Kepha i-black-rock deeste itholakala endaweni yokuqothuka komhlaba, okunciphisiwe ngenxa yokwelulwa njalo kwamapuleti e-tectonic ahamba ngesihlobo komunye nomunye - iPacific, North American kanye ne-coconut encane ye-slab. Ukuqhuma okukhulu kokugcina kulesi sifunda kwenzeka phakathi kweminyaka eyisishiyagalolunye nesingu-12 edlule, futhi umsebenzi wokugcina obonakalayo uneminyaka engaba ngu-660 edlule.
Umthombo: Isayensi Enqunu