earthquake.usgs.gov
Observed 2026-07-13T00:12:52.227297655+00:00 (2h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onAWS CloudFront
Secured byDigiCert
IPv6 · push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat earthquake.usgs.gov actually stands on - every host below is a signed observation
earthquake.usgs.gov
A / AAAA
18.154.227.1318.154.227.2318.154.227.12218.154.227.94+8 more
AWS CloudFrontserves the site
NS
ns-1464.awsdns-55.orgns-1986.awsdns-56.co.ukns-401.awsdns-50.comns-674.awsdns-20.net
awsdns-55.org + awsdns-56.co.uk + moreanswers its DNS
TLS
*.usgs.gov
DigiCert Incissued its certificate
DNS Records
A 4
18.154.227.1318.154.227.2318.154.227.12218.154.227.94
AAAA 8
2600:9000:2501:9c00:12:a982:df80:93a12600:9000:2501:4c00:12:a982:df80:93a12600:9000:2501:ae00:12:a982:df80:93a12600:9000:2501:d000:12:a982:df80:93a12600:9000:2501:5e00:12:a982:df80:93a12600:9000:2501:fe00:12:a982:df80:93a12600:9000:2501:a00:12:a982:df80:93a12600:9000:2501:7800:12:a982:df80:93a1
CNAME 1
d1n6ynkhwz6a2m.cloudfront.net
NS 4
ns-1464.awsdns-55.orgns-1986.awsdns-56.co.ukns-401.awsdns-50.comns-674.awsdns-20.net
TLS Certificates (2)
| Common Name | Issuer | Expires |
|---|---|---|
*.usgs.gov |
C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1 | Thu, 10 Sep 2026 23:59:59 +0000 |
DigiCert Global G2 TLS RSA SHA256 2020 CA1 |
C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 | Sat, 29 Mar 2031 23:59:59 +0000 |
Subdomains (0)
None observed.
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
5e216203-dca9-4122-8465-522f485d2d61- Output Hash
33c2399c41b5724eb4deab8c4ab5d9161554226fda2652a5f6b250d8c325fdc5- Signature
ed25519:49cf1e6fd0e230c80fcf10991423e3f10316b46ae5904fd993dca44371ef626b9a7e0bd313a87120245caae2f980c78906b708330e65f35226cebf019e6dc808- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast