In the Spring of 2008 China has been struck by one of the most disastrous earthquakes of history: magnitude 7.9 (Richter scale), over 69.000 victims, 5 million homeless persons, 21 million damaged buildings, cities completely destroyed, whole regions isolated for many days, economic damages for 86 billions dollars. The earthquake’s epicenter was located near Chengdu [1], the capital of Sichuan, the third most populated province of China.

In front of a catastrophe of such a dimension we are first expecting the verification of the importance of some elements of mundane astrology (catholic astrology), such as eclipses for instance, or specific stars connected with earthquakes [2], or the angular position of malefic planets. But, if we examine all the figures that must be drawn to make a mundane forecast, we first find the confirmation of a rule that most authors were knowing well: the judgment does not result from the examination of a figure alone, but from the comparison between many successive figures up to the syzygy that precedes the event. As we’ll see, in this sequence of figures, the eclipses play a particular part: they activate some stars or points of the zodiac that remain sensitive to the successive reminders [3], that is their own return in the figures. These reminders can be verified in other eclipses, in the equinoctial and solsticial Sun ingresses, in the seasonal syzygies, in the New Moon and Full Moons which precede the event and, finally, in the figure of the event itself.