We're currently finishing out the second month of eruptions from the Kilauea Volcano on Hawaii's big island, and there's no real end in sight. While there hasn't been a massive, catastrophic eruption, there have been fissures that have caused lava to flow out and into the ocean.
The USGS has been providing absolutely fantastic coverage of the volcano as it continues to erupt, posting many updates to its YouTube channel so the general public can get an idea of just how awe-inspiring this eruption truly is.
From the USGS:
A helicopter overflight video of the lower East Rift Zone on June 14, 2018, around 6:00 AM, shows lava fountaining at fissure 8 feeding channelized lava flows that flow into the ocean. Lava is still flowing out of fissure 8 unabated and the channel is full. At the start of the video, standing waves in the lava channel can be seen near the vent exit. The channel appears crust-free from vent to the bend around Kapoho Crater. A surface crust forms over the channel as it spreads out during its approach to the ocean. The overflight along the ocean entry is from north to south along the coastline. The ocean entry is active along the whole length - approximately 1 mile. Small litoral explosions are occurring and there are several plumes of laze.