
Although progress has been made in the understanding of earthquakes, many problems remain. ; © 1964 American Association for the Advancement of Science. The research discussed here was supported by the Air Force Office of Scientific Research (contract AF-AFOSR-62-355) as part of the Advanced Research Projects Agency's Vela-Uniform Program. This article is contribution No. 1221 of the Division of the Geological Sciences, California Institute of Technology.
550, 551
550, 551
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 38 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 1% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
