Rubuta ci gaba don wannan sakin layi - A watan Mayu 1931, girgizar ƙasa ta halaka Managua
, kashe sama da mutane 2,000. Rushewa da asarar da girgizar kasa ta haifar ya raunana gwamnatin tsakiya kuma ya ba Sandino damar sake farfado da gwagwarmayarsa da Amurkawa. A lokacin rani na 1931, ƙungiyoyin Sandinista suna aiki a kowane sashi a arewacin Managua kuma sun gudanar da hare-hare a kudanci da yammacin ƙasar, sassan Estelí, Jinotega, León da Chontales. Sun sami nasarar mamaye garuruwa da yawa a kan babbar hanyar jirgin kasa ta ƙasar, suna haɗa Managua zuwa tashar jiragen ruwa ta tekun Pacific na Corinto, amma ba su yi ƙoƙarin kama kowane birni na ƙasar ba. Sun mamaye wasu ƙananan garuruwa, kamar Chinandega.