Popocatépetl in San Pedro Benito Juárez — Online Webcam
Live Stream from Popocatépetl Volcano
The online webcam is installed in the town of San Pedro Benito Juárez in the state of Puebla and is aimed at one of the most active volcanoes in North America. Popocatépetl is a stratovolcano with an elevation of 5,426 meters above sea level, the second-highest peak in Mexico after Pico de Orizaba. The monitoring camera broadcasts the current state of the crater in real time: ash plumes, gas emissions, and the orange-red glow of magma, which is especially visible at night.
The stream runs continuously, allowing viewers to observe the volcano's activity from anywhere in the world. The image includes informational overlays with the object name, date, and time — this is the standard scientific monitoring format used by volcanological observatories.
Why the Crater Glows
The orange-red glow visible on the stream during dark hours is caused by incandescence of hot gases and lava fragments in the crater. According to data from Smithsonian Institution, incandescence intensifies during seismic tremor and pyroclastic material emissions. This is not an open lava lake, but rather the glow of heated rocks and gas jets rising from the vent.
Popocatépetl has been in a phase of heightened activity since 2005. Periodically, the volcano generates ash plumes reaching heights of several kilometers, as well as small pyroclastic flows. Monitoring is conducted by Mexico's National Center for Disaster Prevention (CENAPRED) with support from the country's universities.
Hazard Level System: Volcanic Alert Traffic Light
To inform the public about the volcano's status, the "Semáforo de Alerta Volcánica" system — a volcanic alert traffic light — is used. It includes three main levels:
Green — the volcano is calm, with minimal or no activity.
Yellow — phases 1, 2, and 3. At the yellow level, the volcano remains active but poses no immediate threat to populated areas. As noted by experts at Flight to Wonder, at the yellow level people are advised to maintain a safe distance from the crater and follow official announcements.
Red — phases 1 and 2. Evacuation of populated areas in the risk zone is ordered. The red level means an eruption is already occurring or is imminent.
A detailed description of the hazard level system is published in a Springer study on the evolution of volcanic hazards at Popocatépetl.
Why the Summit Is Covered in Snow
Although the volcano is located in tropical latitudes, its summit is covered with snow and ice year-round. This is due to its absolute elevation: at 5,426 meters, the average annual temperature remains below zero, and the snow line in this region of Mexico lies at approximately 4,200–4,500 meters. Popocatépetl's glaciers have shrunk significantly over recent decades due to increased volcanic activity and climate change, but the snow cap on the summit persists.
On the webcam, the snowy summit contrasts sharply with the dark silhouette of the slopes and the ash plume from the crater — creating a dramatic picture, especially in clear weather.
Eruption History: From Ancient Catastrophes to the Present Day
Popocatépetl is one of the most studied volcanoes in Mexico. Over the past 23,000 years, several major eruptions have occurred, including three Plinian events. The most powerful of these happened around 800 CE and led to the formation of a caldera, which was subsequently filled by a new cone.
About 23,000 years ago, a lateral eruption of Popocatépetl — a directed blast — destroyed the ancient volcanic cone. According to researchers' estimates, this event was more powerful than the 1980 eruption of Mount St. Helens. Pyroclastic flows and lahars reached distances of 70 kilometers from the summit, filling valleys with deposits tens of meters thick.
In historical times, Popocatépetl has erupted repeatedly: in 1347, 1354, 1504, 1519, 1530, 1539, 1540, 1548, 1562, 1571, 1592, 1642, 1663, 1664, 1697, 1709, 1720, 1802, 1917, 1923, 1925, 1933, and 1947. Since 2005, the volcano has been in a phase of continuous moderate activity with periodic intensifications.
How to Get to the Volcano from Mexico City
Popocatépetl is located approximately 70 kilometers southeast of Mexico's capital. The nearest major cities are Mexico City and Puebla. There are several ways to reach Iztaccíhuatl-Popocatépetl National Park:
From Mexico City Airport (MEX), the journey takes about 1 hour 52 minutes with transfers. Buses, car-sharing services, and transfers are available. The main access points to the volcano are the Tlamacas viewpoint at approximately 3,900 meters and the Altzomoni monitoring station.
A permit is required to enter the national park. Runners, hikers, and cyclists visiting the park on weekends need advance reservations. Before traveling, it is recommended to check the current hazard level on the CENAPRED website — at the red level, access to the volcano is closed.
What You Can See on the Camera
The webcam stream from San Pedro Benito Juárez shows the silhouette of Popocatépetl volcano with its characteristic pointed, snow-covered summit. A plume of ash and gases rises from the crater — white or grayish depending on the intensity of the emission. At night and at dawn, an orange-red glow from heated rocks is visible in the crater.
The sky in the stream is mostly cloudy — this is typical for highland areas of Mexico, where cumulus clouds often form in the afternoon. In clear weather, the neighboring Iztaccíhuatl volcano can be seen from the camera — a dormant stratovolcano standing 5,230 meters tall, located north of Popocatépetl.
The camera operates around the clock, providing continuous monitoring of the volcano's activity. The image may temporarily disappear during heavy cloud cover, fog, or technical maintenance of the equipment.
