Seoul Global Center delivers useful living information every month through Newsletter. This month, we would like to inform you of Cell Broadcasting Service (CBS). Have you ever been surprised by the loud cell phone alarm? Don’t be surprised! It’s a text message alarm from The Ministry of Public Safety and Security (MPSS). By checking the message, you can know about the current emergency situations and how to respond to them.
Today heat wave warning at 11:00. Max temp 35℃ and upper. Please refrain from outdoor activities and drink enough water for your safety.
Today heavy rain warning at 11:00. Please leave dangerous areas immediately to avoid floods and landslides. It is recommended to refrain from outdoor activities.
Today typhoon warning. For your safety, please refrain from outdoor activities and stay away from the shore.
What is Cell Broadcasting System (CBS)?
CBS uses the Cell Broadcasting System (CBS) function of your phone to send text messages. In this way, MPPS can deliver real-time information regarding disasters or emergencies to people who have a cell phone with CBS function. The purpose of the service is to protect people from losing their lives and properties when natural disasters occur.
Is it free?
Yes. CBS is public service operated by MPSS and mobile-service companies, so you won’t be charged for receiving the text messages.
How do they know my cell phone number?
The service is different from ordinary text messages like SMS using personal numbers. In case of sending CBS text messages, under cooperation with mobile-service companies, they send batch messages to people within the certain area near the disaster spots. Therefore, you don’t need to worry about privacy issues.
What if I do not want to receive CBS messages?
iPhone : < Settings > → < Notifications > Turn off < Emergency Alerts > at the bottom
Android : < Messages > → < Settings > → < Receiving Emergency Alerts >
When they send CBS message?
Please refer to the table below to check details.
|Types||Daytime (6:00 ~ 21:00)||Night time (21:00 ~ 6:00)||Comment|
Land magnitude 3.0~3.4 / Sea magnitude 3.5~3.9:area within a 35km radius
Land magnitude 3.5~3.9 / Sea magnitude 4.0~4.4:area within a 50km radius
Land magnitude 4.0~ / Sea magnitude 4.5~ :Throughout the country
|Sent from KMA|
|Infectious disease||Only if disaster management agency requests||-|