Area Mail Disaster Information Service

What’s Area Mail Disaster Information Service?

Area Mail is a service that enables you to receive Earthquake Early Warnings issued by the Japan Meteorological Agency and disaster and evacuation information issued by national and regional public institutions. Subscribers in afflicted areas receive emergency information at no monthly charge or communications charges whatsoever.

To enable the Area Mail disaster Information service, you must first configure Area Mail receive settings on your mobile phone and agree to the Notice for Area Mail.

Points of service

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Area Mail provides Earthquake Early Warnings and disaster and evacuation information.

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Subscribers can receive information simultaneously issued for afflicted areas.

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When emergency bulletins are received, a popup display and an emergency ring tone notify the subscriber.

How the Area Mail Disaster Information service works

How to Set Area Mail

You must first configure Area Mail receive settings on your handset. To do this, please agree to the Notice and configure the settings to receive Area Mail disaster information. Application is not required.

* noticeScreens are for illustrative purposes only, and differ depending on the handset model.


Communications charges and information charges do not apply.

Notes on Use

* The Area Mail Disaster Information service (hereafter referred to as “Area Mail”) is a service that provides Earthquake Early Warnings issued by the Japan Meteorological Agency and disaster and evacuation information issued by national and regional public institutions in emergencies such as disasters.

Those are delivered simultaneously via the DoCoMo network to mobile phones located in specific areas.

* Area Mail can only be used with Area Mail-compatible mobile phones.

* Area Mail can only be received within Japan.

* An i-mode service subscription and application to receive messages are not necessary to receive Area Mail. However, you must configure receive settings on an Area Mail-compatible mobile phone before the service can be used.

* Communications charges do not apply to receive Area Mail.

* When receiving Area Mail, a screen with information details appears automatically and is subsequently saved to the inbox.

* Area Mail can be received even when settings have been activated to block incoming mail in Reject/Receive Mail Settings.

* Area Mail cannot be received when the phone is in use such as for voice calls, i-mode and other packet communications, and other communications. Area Mail also cannot be received when the handset is located in an area with poor signal reception.

* If Area Mail has been sent but cannot be received, it will not be re-sent.

* Earthquake Early Warnings from Area Mail may not necessarily be received before you feel the tremor from the earthquake, etc.

* When manner mode is activated on a handset, the handset will not sound the Area Mail beep tone.

* When public (drive) mode is activated on a handset, you will be alerted by the display of an Area Mail icon.

* DoCoMo bears no responsibility whatsoever for any loss or damage attributable to Area Mail content or to receiving or not receiving Area Mail.

* You may receive Area Mail containing information related to an area other than the area where you are actually located.

About Earthquake Early Warnings

The Earthquake Early Warning system automatically calculates the fucus and magnitude of the earthquake and estimates the seismic intensity for each location by detecting the quake (the P-wave, or the preliminary tremor) near its focus. An Earthquake Early Warning is then given a matter of seconds (a few seconds to a few tens of seconds) before the arrival of strong tremors (the S-wave, or principal motion).

When an earthquake with a predicted maximum seismic intensity 5-lower or greater on the Japanese seismic intensity scale is detected, DoCoMo simultaneously delivers General Earthquake Early Warnings from the Japan Meteorological Agency to mobile phones located in regions with strong tremors (seismic intensity 4 or above). (Note that Japan is divided into approx. 200 regions.)

Cautions when receiving Earthquake Early Warnings

After seeing or hearing an Earthquake Early Warning, you have only a matter of seconds before strong tremors arrive. This means you need to act quickly to protect yourself.

Remain calm, and secure your personal safety based on your surroundings.

Earthquake Early Warning: Dos & Don’ts

At Home

* Protect your head and shelter under a table
* Don’t rush outside
* Don’t worry about turning off the gas in the kitchen

In Public Buildings

* Follow the attendant’s instructions
* Remain calm
* Don’t rush to the exit


* Look out for collapsing concrete-block walls
* Be careful of falling signs and broken glass
* Take shelter in a sturdy building if there is one close enough

Near Mountains/Cliffs

* Watch out for rockfalls and landslides

When Driving

* Don’t slow down suddenly
* Turn on your hazard lights to alert other drivers, then slow down smoothly
* If you are still moving when you feel the earthquake, pull safely over to the left and stop

On Buses or Trains

* Hold on tight to a strap or a handrail

In Elevators

* Stop the elevator at the nearest floor and get off immediately

About Disaster and Evacuation Information

You can receive a variety of information concerning public safety, most prevalently information related to natural disasters such as tsunamis and typhoons issued by regional public institutions nationwide.

* noticeSubscribers in an area where a regional public institution has commenced information delivery can receive such information.

* noticeThe names of regional public institutions delivering information will be posted as soon as they have been determined.


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