Heidari (2016) studied the B−Δ methodology to rapidly estimate epicentral distance and earthquake magnitude employing 17 large earthquakes that occurred between 2002 and 2013 in Iran for use in an earthquake early warning system around the Tehran region. In the B−Δ approach, the epicentral distance (⁠Δ⁠, as unknown and dependent parameter) is estimated from the initial slope (coefficient B⁠, as known and independent parameter) of the acceleration waveform in a logarithm scale. Routinely, coefficient B results from a curve fitting, that is, regression, in the form of y=B...

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Reza Heidari 评论“使用 P 波快速估计伊朗地震的震级和震中距”

Heidari (2016) 研究了 B−Δ 方法，以使用 2002 年至 2013 年在伊朗发生的 17 次大地震快速估计震中距离和地震震级，用于德黑兰地区周围的地震预警系统。在 B−Δ 方法中，震中距离（⁠Δ⁠，作为未知和相关参数）是从对数刻度的加速度波形的初始斜率（系数 B⁠，作为已知和独立参数）估计的。通常，系数 B 来自曲线拟合，即回归，形式为 y=B...