Collaborative Research: Kinematics and Dynamics of Kilauea Volcano from GPS Observations

9903776拉森调查人员将扩大他们在基拉韦厄火山上的连续记录全球定位系统网络，以更好地了解火山和地震变形。在最近几次大地震的震中地区将增加两个GPS站，其中最大的一次是7.2级。年度测量表明，在1997年6月5.5级地震之前，几个地点的形变模式发生了变化。新的测站将有助于将形变速率的变化限制在这个形核区内。调查人员将测试1997年6月地震前收集的数据是否可以用基拉韦厄下面滑脱率的下降来解释。将开发快速分析GPS数据的技术，以确定近实时的形变估计，并对这些数据进行建模，以更好地约束地震和岩浆过程。

9903776 Larson The investigators will expand their continuously recording Global Positioning System (GPS) network on Kilauea volcano to better understand volcanic and seismic deformations. Two GPS stations will be added in the epicentral region of the most recent large earthquakes, the largest of which was M7.2. Annual measurements imply a change in the pattern of deformation at several sites prior to a M5.5 earthquake in June 1997. The new stations will help constrain deformation rate changes within this nucleation zone. The investigators will test whether the data collected before the June 1997 earthquake can be explained by a decrease in slip-rate on the decollement beneath Kilauea. Techniques will be developed to rapidly analyze the GPS data to determine near real-time estimates of deformation, and to model these data to better constrain seismic and magmatic processes.