Frequently Asked Questions (FAQ) about Earthquake Recording Instruments (ERI)

An Earthquake Recording Instrument (ERI) is a device designed to detect and record seismic activity, such as ground motion and vibrations caused by earthquakes. These instruments provide critical data that helps in understanding seismic events and enhancing disaster preparedness.

An ERI typically consists of sensors, such as accelerometers, that measure ground acceleration. When an earthquake occurs, these sensors detect the vibrations and ground motion. The data is then recorded and can be analyzed to determine the magnitude, location, and characteristics of the earthquake.

Having an ERI on campus is crucial for several reasons:

• Safety: Provides real-time data to enhance emergency response and safety protocols.

• Compliance: In many regions, including the Philippines, it is required by law (DPWH) for schools with at least 20 classrooms but not less than 3 storeys at least one accelerograph.

• Preparedness: Helps in planning and preparing for potential seismic events, reducing risk and damage.

Having an ERI on building is crucial for several reasons:

• Safety: Provides real-time data to enhance emergency response and safety protocols.

• Compliance:

  • Buildings that are more than 50 meters in height– three (3) accelerographs are required.

  • Commercial buildings with an occupancy of a minimum of 1,000 persons or have a gross floor area of 10,000 square meters or more – one (1) accelerograph is required.

  • Industrial buildings with an occupancy of a minimum of 1,000 persons and have a gross floor area of 10,000 square meters or more – one (1) accelerograph is required.

• Preparedness: Helps in planning and preparing for potential seismic events, reducing risk and damage.

Modern ERIs, like the RoboQuake, are highly accurate and can detect even the slightest tremors. They are designed to provide reliable data, essential for effective disaster mitigation and response.

Yes, ERIs can be seamlessly integrated with existing building management and safety systems. This integration ensures a comprehensive approach to monitoring and responding to seismic events.

The installation process involves:

• Site Assessment: Determining the optimal locations for the sensors.

• Installation: Professional installation of the sensors and recording equipment.

• Calibration and Testing: Ensuring the system is properly calibrated and functional.

• Training: Providing training for staff on how to use and interpret the data from the ERI.

ERIs provide detailed data on ground motion, including:

• Acceleration: The rate of change of velocity of the ground.

• Velocity: The speed at which the ground is moving.

• Displacement: The distance the ground has moved from its original position.

This data helps in analyzing the intensity and impact of seismic events.

The data from ERIs can be used for:

• Emergency Response: Immediate actions during and after an earthquake.

• Structural Analysis: Assessing the impact on buildings and infrastructure.

• Research: Enhancing the understanding of seismic activity and improving earthquake-resistant design.

Yes, Westfor Asia Co. provides ongoing support and maintenance services to ensure your ERI system remains in optimal condition. We offer training, troubleshooting, and regular updates to keep your system up-to-date.