mobile – adj. able to be moved

network – n. a system of computers and other devices that are connected to each other

magnitude – n. a number that shows the power of an earthquake

response – n. something that is done as a reaction to something else

random – adj. chosen or done without a particular plan or pattern

smartphone – n. a mobile telephone that can be used to send and receive e-mail, connect to the Internet and take photographs

encrypted – adj. changed from one form to another especially to hide its meaning

tribal – adj. of or relating to a group of people that includes many families and relatives who have the same language, customs, and beliefs

journalist(s) – n. a person whose job is collecting, writing, and editing news stories for newspapers, magazines, television, or radio

obligation – n. something that you must do because of a law, rule or promise