De Rerum Natura
Lucretius
Lucretius. De Rerum Natura. William Ellery Leonard. E. P. Dutton. 1916.
- Now come, and what the law of earthquakes is
- Hearken, and first of all take care to know
- That the under-earth, like to the earth around us,
- Is full of windy caverns all about;
- And many a pool and many a grim abyss
- She bears within her bosom, ay, and cliffs
- And jagged scarps; and many a river, hid
- Beneath her chine, rolls rapidly along
- Its billows and plunging boulders. For clear fact
- Requires that earth must be in every part
- Alike in constitution. Therefore, earth,
- With these things underneath affixed and set,
- Trembleth above, jarred by big down-tumblings,
- When time hath undermined the huge caves,
- The subterranean. Yea, whole mountains fall,
- And instantly from spot of that big jar
- There quiver the tremors far and wide abroad.
- And with good reason: since houses on the street
- Begin to quake throughout, when jarred by a cart
- Of no large weight; and, too, the furniture
- Within the house up-bounds, when a paving-block
- Gives either iron rim of the wheels a jolt.
- It happens, too, when some prodigious bulk
- Of age-worn soil is rolled from mountain slopes
- Into tremendous pools of water dark,
- That the reeling land itself is rocked about
- By the water's undulations; as a basin
- Sometimes won't come to rest until the fluid
- Within it ceases to be rocked about
- In random undulations.
- And besides,
- When subterranean winds, up-gathered there
- In the hollow deeps, bulk forward from one spot,
- And press with the big urge of mighty powers
- Against the lofty grottos, then the earth
- Bulks to that quarter whither push amain
- The headlong winds. Then all the builded houses
- Above ground- and the more, the higher up-reared
- Unto the sky- lean ominously, careening
- Into the same direction; and the beams,
- Wrenched forward, over-hang, ready to go.
- Yet dread men to believe that there awaits
- The nature of the mighty world a time
- Of doom and cataclysm, albeit they see
- So great a bulk of lands to bulge and break!
- And lest the winds blew back again, no force
- Could rein things in nor hold from sure career
- On to disaster. But now because those winds
- Blow back and forth in alternation strong,
- And, so to say, rallying charge again,
- And then repulsed retreat, on this account
- Earth oftener threatens than she brings to pass
- Collapses dire. For to one side she leans,
- Then back she sways; and after tottering
- Forward, recovers then her seats of poise.
- Thus, this is why whole houses rock, the roofs
- More than the middle stories, middle more
- Than lowest, and the lowest least of all.