Why Every Facility Needs a Comprehensive Earthquake Early Warning Policy

Earthquakes are unpredictable, but your facility’s response doesn’t have to be. Implementing an Earthquake Early Warning System (EEWS) is essential for protecting your employees, infrastructure, and operations from seismic events. However, simply having the technology in place isn’t enough—having a clear, comprehensive policy ensures that everyone knows exactly how to respond when an earthquake occurs.

An Earthquake Early Warning System Policy provides critical guidelines for the operation, maintenance, and response protocols associated with advanced technologies like P-ALERT family sensors and PX-01 Cube wall-mount display and alarms. This policy outlines how the system functions, where it’s installed, who’s responsible for it, and—most importantly—how to react when an alert is triggered. Without a well-defined policy, even the best early warning systems can fail to deliver their full potential in safeguarding lives and assets.

Having a structured policy ensures:

  • Clear responsibilities for personnel at every level
  • Efficient use of warning time provided by earthquake alerts
  • Consistent, rehearsed responses through regular drills and training
  • Ongoing system maintenance and improvements based on real-world feedback

Below is a sample policy that you can use as a starting point to implement an earthquake early warning system using our technologies. It’s designed to keep your people safe and your facility prepared in the face of seismic events.

Implementing an Earthquake Early Warning System: Sample Policy

When it comes to protecting your facility from the unpredictable nature of earthquakes, having an effective Earthquake Early Warning System (EEWS) can make all the difference. With the right technology, you can significantly reduce the risk of injuries, protect your infrastructure, and ensure operational continuity. Below is an example of a comprehensive policy that can be implemented using the P-ALERT earthquake detection sensor and PX-01 Cube wall-mount display and alarm technologies.

Objective:

The primary goal of this policy is to establish a robust earthquake early warning system that leverages P-ALERT sensors and PX-01 Cube displays. The system aims to provide timely warnings that will allow personnel to take protective actions and reduce potential damage to critical assets.

Scope:

This policy applies to all employees, contractors, and visitors on-site, addressing the installation, operation, and ongoing maintenance of the earthquake early warning system.

System Overview:

  1. P-ALERT System:
    The P-ALERT is an advanced P-wave detector designed to detect seismic activity at its earliest stages. It uses cutting-edge Pd technology and can identify the less-damaging P-waves before the more destructive S-waves hit. Once an event is detected, P-ALERT sends signals to the PX-01 Cube for immediate action.
  2. PX-01 Cube:
    The PX-01 Cube is a smart wall-mounted alarm that can operate as a standalone device or as part of a central network. It displays earthquake warnings, countdowns for S-wave arrivals, and other critical information like tsunami alerts and aftershock warnings, providing a clear and actionable interface during emergencies.

System Installation and Configuration:

  1. Sensor Placement:
  • Install P-ALERT devices at critical structural points to ensure complete coverage and reliable detection.
  • High-occupancy areas and vital infrastructure should be prioritized during sensor deployment.
  1. PX-01 Cube Location:
  • PX-01 Cube units should be placed in highly visible locations such as control rooms, hallways, and entry points.
  • Ensure that alarms and visual warnings are prominently displayed to all personnel.

2. Network and Power Redundancy:

    • Connect the PX-01 Cube to a local network for real-time data flow between P-ALERT devices and the central warning system (if applicable).
    • Equip the system with an Uninterruptible Power Supply (UPS) to maintain functionality during power outages triggered by seismic events.

    Alert System Functionality:

    1. P-Wave and S-Wave Detection:
      The system provides a layered response:
    • P-Wave Detected: The PX-01 Cube will display countdown information, giving employees vital seconds to prepare for the S-wave.
    • S-Wave Alarm: The alarm will immediately activate once the S-wave is imminent, prompting personnel to take action.

    2. Additional Display Capabilities:
    The PX-01 Cube can also display essential information such as:

      • Alerts from a USGS earthquake early warning system

      Procedures for Action During an Earthquake Alert:

      1. Phase 1: P-Wave Alert (Pre-Earthquake Warning)
      • The PX-01 Cube will sound an alarm and display countdown information.
      • Employees should cease any hazardous activities, move away from unsafe areas, and follow pre-determined safety procedures.
      • Designated staff should secure high-risk materials and equipment.

      2. Phase 2: S-Wave Alarm (Shaking Imminent)

        • The S-wave alarm signals immediate danger. Employees must take cover using the Drop, Cover, and Hold On protocol.
        • Personnel outside buildings should move to safe, open spaces.

        3. Phase 3: Post-Earthquake

          • After the shaking stops, supervisors will assess the damage and determine whether an evacuation is necessary.
          • Employees will gather at designated evacuation points for further instructions.

          Roles and Responsibilities:

          1. Safety Committee:
          • Oversee the system’s implementation and conduct regular policy reviews.
          • Ensure all staff are trained and prepared for earthquakes through drills.
          • Adjust policies based on feedback from post-event reviews.
          1. System Administrators:
          • Maintain and monitor the system’s functionality, ensuring that sensors and displays are always operational.
          • Troubleshoot any connectivity issues between P-ALERT and the PX-01 Cube.

          2. Employees:

            • Participate in regular earthquake drills and training.
            • Respond quickly and appropriately to alarms.
            • Report any technical problems with the system.

            Maintenance and Testing:

            1. Routine System Testing:
            • Test the system monthly to confirm operational readiness.
            • Perform annual inspections of all hardware and software.

            2. Drills and Training:

              • Conduct earthquake drills quarterly to ensure employees understand the system and know how to respond.
              • Provide onboarding training for new employees.

              3. Issue Reporting:

                • Employees should report any malfunction or false alarms immediately.
                • System administrators will maintain a log of issues and resolutions for continuous improvement.

                Continuous Improvement:

                1. Post-Earthquake Review:
                  After any significant seismic event, the safety committee will review the performance of the EEWS, evaluate employee responses, and identify areas for improvement.
                2. Annual Policy Update:
                  The policy will be reviewed annually or after any major earthquake to incorporate advancements in technology and updated best practices.

                Conclusion:

                Implementing an earthquake early warning system using P-ALERT and PX-01 Cube technology provides a crucial layer of safety for your facility. By adhering to a well-defined policy, your organization can ensure the protection of both personnel and infrastructure while maintaining preparedness for seismic events.

                This example policy demonstrates how you can structure your own implementation for the P-ALERT and PX-01 Cube combination. Adapt it to your facility’s specific needs, and take advantage of the timely warnings these technologies provide to mitigate earthquake risks effectively.

                Seeing is Believing – Contact us today to schedule a demonstration of our state-of-the-art earthquake early warning solutions.

                About QuakeLogic

                QuakeLogic is a leading provider of advanced earthquake early warning systems, seismic monitoring solutions, offering a range of products and services designed to enhance the accuracy and efficiency of testing, data acquisition, and analysis.

                Contact Information:

                For more information about our products and services, please visit our website or contact our sales team. We are here to help you with all your testing and monitoring needs.

                Newly-designed 250-kg Uniaxial Shake Table: Precision and Power for Testing

                We are proud to unveil our latest innovation—the state-of-the-art 250-kg Uniaxial Shake Table. This cutting-edge piece of equipment is engineered to provide unparalleled accuracy and performance for seismic testing, making it an essential tool for engineers and researchers focused on advancing structural resilience and earthquake preparedness.

                Key Features

                • 1m x 1m Top Table: Ample space for a variety of test setups.
                • 250 kg Payload Capacity (@ ±1g): Designed to handle robust testing requirements.
                • ±200 mm Stroke: Provides the flexibility needed for detailed simulations.
                • Closed-Loop PID Control: Ensures precise control over testing parameters for reliable results.
                • Powered by a Servo Motor: Delivers smooth, quiet, and highly accurate operations, ideal for earthquake simulations.
                • Easy Setup, Plug & Play: Simplified installation allows you to start testing quickly, minimizing downtime.
                • Low Power Consumption: Designed with energy efficiency in mind, making it cost-effective to operate.
                • High Industrial Quality: Built to last, this shake table is virtually maintenance-free, offering long-term reliability.

                Seamless Integration and Remote Control

                One of the standout features of our 250-kg Uniaxial Shake Table is its IP-based system, allowing for remote operation and monitoring. Whether you’re in the lab or working from another location, you can maintain full control over your seismic tests. Additionally, the shake table comes equipped with QuakeLogic’s proprietary EASYTEST software, which operates smoothly on any Windows machine without the need for specialized computer cards or hardware.

                Designed for Efficiency

                The shake table’s compact and sleek design ensures a quick and effortless setup, allowing you to begin your testing with minimal hassle. Its virtually maintenance-free build means you can focus on your research, not on the upkeep of your equipment.

                Watch the Shake Table in Action

                Curious to see the 250-kg Uniaxial Shake Table at work? Click the YouTube link below to watch a live demonstration, including its control software in use:
                Watch Now

                Learn More

                For detailed specifications or to see more information, visit our product page: QuakeLogic 250-kg Shake Table or contact us directly at sales@quakelogic.net.

                Join the ranks of engineers and researchers who are transforming seismic testing and building safer, more resilient infrastructure.

                Some of our recent clients are:

                • Nokia,
                • Caltech,
                • University of Texas,
                • Texas AM,
                • Virginia Tech,
                • Imperial College London,
                • UC San Diego,
                • Cooper Union University,
                • University of Alberta,
                • National Autonomous University of Mexico,
                • American University of Sharjah,
                • University of Queensland and many more.

                Why Choose QuakeLogic?

                1. Proven Performance: QuakeLogic’s shake tables have been installed and are in use at leading research facilities worldwide.
                2. Custom Solutions: Tailored configurations to meet specific testing needs, whether uniaxial or biaxial.
                3. Expert Support: Our team works closely with clients to ensure successful system installation, operation, and ongoing maintenance, offering full lifecycle support.

                About QuakeLogic

                QuakeLogic is a leading provider of advanced seismic monitoring solutions, offering a range of products and services designed to enhance the accuracy and efficiency of testing, data acquisition, and analysis.

                Contact Information:

                For more information about our products and services, please visit our website or contact our sales team. We are here to help you with all your testing and monitoring needs.

                Understanding Non-Structural Seismic Shake Table Testing: AC156 Compliance and Test Plan Creation

                Comprehensive Guide to AC156 Non-Structural Seismic Testing: Key Technical Insights

                Non-structural seismic testing plays a crucial role in ensuring that building components, such as HVAC systems, piping, electrical infrastructure, and essential fixtures, are capable of withstanding seismic events. The widely adopted AC156 standard (Acceptance Criteria for Seismic Certification by Shake-Table Testing of Nonstructural Components) sets forth a technical framework for qualifying non-structural components to ensure their seismic resilience.

                This guide aims to provide a deep dive into the technical details of AC156 testing, the steps for generating seismic profiles, and considerations for creating a test plan.

                Technical Overview of AC156 Testing

                The AC156 standard, developed by the International Code Council Evaluation Service (ICC-ES), outlines the required procedures for assessing non-structural components using shake tables to replicate earthquake ground motion. This ensures that critical building elements remain functional during and after an earthquake, minimizing the potential for failure or dislodgement that could cause hazards.

                Key Components of AC156 Testing

                Scope of Testing:

                • AC156 covers components that are affixed to buildings and critical infrastructures, such as:
                  • Mechanical systems (e.g., HVAC units, piping systems).
                  • Electrical systems (e.g., emergency power supplies, control panels, lighting fixtures).
                  • Safety and medical equipment (e.g., elevators, emergency medical devices).
                • These components are tested to verify that they either maintain functionality or remain securely fastened after exposure to seismic forces.

                Shake Table Testing Methodology:

                • The shake table test is at the heart of AC156, where components are subjected to controlled seismic motion. The shake table simulates the ground motions of an earthquake, applying forces along multiple axes to reproduce real-world earthquake dynamics.
                • Biaxial shaking (testing along two orthogonal axes simultaneously) is the preferred method, as it better simulates real-world conditions. However, uniaxial testing is also acceptable for simpler cases, depending on the component’s design.
                • Shake table inputs are derived from response spectra, ensuring that ground motions are generated based on regional seismic risks and building codes.
                • Seismic Profile Generation:
                • A critical part of the test is the generation of a seismic profile, which reflects the seismic demand based on the design response spectrum. The response spectrum is defined by the ASCE 7-22 standard or the International Building Code (IBC) (or California Building Code) for the region where the component will be installed.
                • Seismic profile generation can be performed using specialized software tools, which allow for matching a time-history record to the target response spectrum either amplitude scaling or spectral matching. The generated time history ensures that the shake table replicates realistic ground motion for the location.

                Testing Criteria:

                • Components must meet specific performance criteria based on three key objectives:
                  • Functional Testing: Verifying that equipment continues to function under and after seismic motion. For example, an HVAC system must maintain operation to avoid disruption to the building’s climate control.
                  • Structural Integrity: Ensuring that components do not suffer from catastrophic structural failures, which could result in dislodgment, overturning, or breakage.
                  • Safety: Preventing components from becoming hazards. Even if a component ceases to function, it should not pose additional risks (e.g., falling debris or electrical shock).

                Data Collection and Instrumentation

                Instrumentation plays a vital role in seismic testing, providing precise data to evaluate the performance of the tested components. Commonly used instruments in AC156 testing include:

                • Accelerometers: These measure the acceleration response of the component, capturing how it reacts to seismic forces.
                • Displacement Sensors: These measure the movement of the component relative to its original position, essential for assessing whether components remain securely anchored.
                • Load Cells: These can be used to measure the forces exerted on the mounting system during the seismic event.

                The data from these instruments allow engineers to identify potential failure modes and provide insights into how to improve component design.

                Steps for Creating a Test Plan for Shaker-Based Seismic Testing

                To ensure comprehensive seismic testing, a well-structured test plan must be developed, accounting for all variables in the testing process:

                Component Identification: Begin by identifying the component(s) to be tested, including the type, size, weight, and any specific features that might influence seismic performance.

                • Example: A 500-pound HVAC unit mounted on a rooftop requires different testing parameters than a lightweight lighting fixture mounted on a ceiling.

                Seismic Profile Development: Utilize the design response spectrum for the region in which the component will be installed. The spectrum provides the basis for generating the seismic profile.

                • Example: If testing for installation in a high-seismicity region like California, the profile should replicate severe earthquake conditions, as outlined in ASCE 7-22.

                Test Objectives:

                • Functional Testing: Determine if the equipment needs to maintain continuous operation after seismic motion. For life-critical systems (e.g., emergency power supplies), functionality is the primary test objective.
                • Safety and Integrity: For non-operational components, confirm that they remain safely fastened without causing hazards (e.g., medical gas lines in hospitals).

                Testing:

                1. Instrumentation Setup: Plan the placement of accelerometers, displacement sensors, and load cells to capture detailed data during the test. Data from these instruments will help assess compliance with AC156 standards.
                2. Execution: Execute the test, applying the seismic profile to the shake table. Ensure proper monitoring throughout the test to capture all relevant performance data.
                3. Data Analysis: After the test, analyze the collected data to verify that the component meets the performance criteria. If necessary, adjust the design or mounting configurations to ensure compliance.

                Applications and Importance of AC156 Testing

                AC156 seismic testing is crucial across multiple industries, including:

                • Commercial Buildings: HVAC systems, lighting, and electrical panels.
                • Healthcare: Seismic compliance for medical equipment, life-support systems, and emergency infrastructure.
                • Data Centers: Server racks and backup systems that require uninterrupted functionality during and after seismic events.
                • Telecommunication: Ensuring the operational continuity of communication networks during a disaster.

                About QuakeLogic

                QuakeLogic is a leading provider of advanced vibration testing equipment, seismic monitoring solutions, offering a range of products and services designed to enhance the accuracy and efficiency of lab testing, data acquisition, and analysis.

                Contact Information:

                • Email: sales@quakelogic.net
                • Phone: +1-916-899-0391
                • WhatsApp: +1-650-353-8627
                • Website: www.quakelogic.net

                For more information about our products and services, please visit our website or contact our sales team. We are here to help you with all your testing and monitoring needs.