Not at all! They even have a scene where a character sets a basketball on the street to figure out which way the ground is sloping, thus establishing firmly that Wilshire Blvd is the safest place on earth to be in the event of a volcano.
That leaves the screenwriters with the uncomfortable task of trying to find ways to make this easygoing safety hazard more exciting. So, in one scene, a palm tree catches fire and falls over, conveniently trapping the heroes between an overturned bus and the creeping tide of molten death. Later, a handful of people on a subway train have to be rescued because not one of them is smart enough to figure out how to use the door on a subway car without outside help.
Finally, the lava breaks several laws of physics to race across town via an underground tunnel and spring out of the middle of the road near Cedar Sinai Hospital, but then it just starts crawling along exactly the way it did on the other side of town.
How They Solve the "Problem":
How do you re-route a lava flow and send it harmlessly into the ocean? Simple: You blow up a huge fucking building! Seriously, to save the city from a threat that can be easily out-walked, they topple a large building, killing two people in the process. If they ever make a sequel, they should save a city from a glacier by burning down an orphanage.
"We'll build a lava blockade using every available fire truck."
Most Laughable Brush With "Danger":
An old lady walks away from the lava that's engulfing her house, but she left her tiny little dog inside! The dog, realizing that he's in no danger whatsoever, runs over to the lava and barks at it.
Then, he scampers out the doggy door to tell all his little doggy friends that lava is a huge pussy.