【摘要】 通过对实时地震仪的数据采集 ,和新开发的地面运动参数和期望的震动烈度值之间的关系 ,美国已经实现了仪器地面运动和震动烈度图的快速 ( 3～ 5min)产出。整个南加州震动值的估计是通过空间测量的地面运动的插值来完成的 ;插值是基于频率和依赖于振幅的台站修正的。震动图的产出是自动的 ;通过在南加州的重大地震来触发。通过因特网 ,公众和科学用途的震动图可以在几分钟内得到 ;对于紧急响应机构和应急用户 ,通过数据通信专线可以快速得到这些图。更多还原

【Abstract】 Rapid (3～5 minutes) generation of maps of instrumental ground-motion and intensity is accomplished through advances in real-time seismographic data acquisition combined with newly developed relationships between ground-motion parameters and expected shaking intensity values. Estimation of shaking over the entire region in southern California is obtained by the spatial interpolation of the measured ground motions with site corrections in frequency and amplitude. Production of the maps is automatic, triggered by any significant earthquake in southern California. Maps are now made available within several minutes of the earthquake for public and scientific community via the World Wide Web; they will be made available through dedicated communications for emergency response agencies and critical users.更多还原