Hawaii has fairly liquid lava, which means that the dissolved gas can escape safely and not build up pressure for a big sudden explosion. Accordingly, while the

Hawaii has fairly liquid lava, which means that the dissolved gas can escape safely and not build up pressure for a big sudden explosion. Accordingly, while the airport may not be safe, the people should be since they can move away from any incoming lava in time. The volcanoes with more viscous lava (such as Vesuvius) are much more dangerous in comparison.