In Chen and Shearer , we compared well injection data from the Salton Sea geothermal site with nearby seismicity. The detailed injection record for each injection well can be downloaded from the “geostream for geothermal resources” website and include total injection volume and duration for each month. However, we incorrectly interpreted the duration to be the starting date of discrete injection events, which we compared with the occurrence time of individual seismicity swarms. This misinterpretation led to apparently more precise temporal correlations between injection times and swarm activity than can be obtained from the injection data. The injection activities are continuous, and the exact injection start and stop times for each well are not included in the records that we obtained. This error does not affect our main results, including the longer-term correlations between injection activities and seismicity, as well as the stress drop behavior with distance from injection wells.
 The specific corrections are as follows:
 In section 6.3, the sentence “The swarms are located within the Salton Sea and Brawley geothermal fields, close to geothermal wells, especially the three swarms that started shortly after nearby injection events” should be changed to “The swarms are located within the Salton Sea and Brawley geothermal fields, close to geothermal wells, especially the three swarms that occurred within active injection periods.”
 In paragraph 34, the opening sentence “The large swarm in August, 2005 started less than 10 hours after a cluster of injection events, and exhibits NE-SW migration during the initial 10 hours” should be changed to “The large swarm in August 2005 is located within an area with a cluster of continuous injection wells and exhibits NE-SW migration during the initial 10 h.”
 In paragraph 34, the phrase in the last sentence “The increased pore fluid pressure from multiple injectio7n events prior to the seismicity may have” should be changed to “The increased fluid pressure from multiple injection wells nearby may have.”
 In paragraph 37, the reference to Figure 8c in the last sentence should be removed. However, the fact that multiple injection wells are active at the same time remains a valid point.