A magnitude Md 1.9 earthquake occured in region: 2 km SW Velletri (RM), on
and geographic coordinates (lat, lon) 41.6700, 12.7660 at 4 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
Search earthquakes: Any within 30 km radius
The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Velletri | RM | 2 | 53303 | 53303 |
Lanuvio | RM | 5 | 13632 | 66935 |
Nemi | RM | 7 | 1943 | 68878 |
Genzano di Roma | RM | 7 | 23970 | 92848 |
Lariano | RM | 9 | 13432 | 106280 |
Ariccia | RM | 10 | 19407 | 125687 |
Cisterna di Latina | LT | 10 | 36868 | 162555 |
Albano Laziale | RM | 11 | 41715 | 204270 |
Rocca di Papa | RM | 11 | 17034 | 221304 |
Cori | LT | 13 | 11065 | 232369 |
Aprilia | LT | 13 | 73446 | 305815 |
Rocca Massima | LT | 13 | 1136 | 306951 |
Castel Gandolfo | RM | 13 | 8997 | 315948 |
Rocca Priora | RM | 14 | 11962 | 327910 |
Marino | RM | 14 | 43026 | 370936 |
Artena | RM | 15 | 14276 | 385212 |
Grottaferrata | RM | 16 | 20327 | 405539 |
Monte Compatri | RM | 16 | 11978 | 417517 |
Labico | RM | 16 | 6379 | 423896 |
Monte Porzio Catone | RM | 17 | 8693 | 432589 |
Frascati | RM | 17 | 22087 | 454676 |
San Cesareo | RM | 17 | 15153 | 469829 |
Valmontone | RM | 17 | 15959 | 485788 |
Colonna | RM | 18 | 4287 | 490075 |
Ardea | RM | 19 | 49183 | 539258 |
Norma | LT | 20 | 3946 | 543204 |
Zagarolo | RM | 20 | 17843 | 561047 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 1.9 | 1987-05-14 05:58:11 |
41.67 | 12.766 | 4 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 47009 |
Field | Value |
---|---|
Time (UTC) | 1987-05-14 05:58:11 ± 0.294 |
Latitude | 41.6700 ± 0.0136 |
Longitude | 12.7660 ± 0.0085 |
Depth (km) | 4 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 47009 |
Field | Value |
---|---|
Preferred uncertainty description | horizontal uncertainty |
Semi-major axis of confidence ellipse (meter) | |
Semi-minor axis of confidence ellipse (meter) | |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1667.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 301 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.1 |
Epicentral distance of station closest to the epicenter (degree) | 0.00081 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00639 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 1.9 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 47009 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:46:08 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.MNS.Z. | 1987-05-14T05:58:37.50 | 10.0 | undecidable | manual | SG | 354 | 0.7104 | -0.32 | 0.1 | |
--.MNS.Z. | 1987-05-14T05:58:27.00 | 10.0 | undecidable | manual | PG | 354 | 0.7104 | 0.21 | 0.6 | |
--.CP9.Z. | 1987-05-14T05:58:21.00 | 10.0 | undecidable | manual | SG | 35 | 0.2331 | 0.04 | 0.8 | |
--.RMP.Z. | 1987-05-14T05:58:18.00 | 10.0 | undecidable | manual | SG | 341 | 0.1443 | 0.36 | 0.1 | |
--.CP9.Z. | 1987-05-14T05:58:17.00 | 10.0 | undecidable | manual | PG | 35 | 0.2331 | -0.06 | 2 | |
--.RMP.Z. | 1987-05-14T05:58:15.00 | 10.0 | undecidable | manual | PG | 341 | 0.1443 | -0.14 | 1.5 | |
--.RDP.Z. | 1987-05-14T05:58:15.50 | 10.0 | undecidable | manual | SG | 337 | 0.0888 | -0.18 | 0.7 | |
--.RDP.Z. | 1987-05-14T05:58:14.00 | 10.0 | undecidable | manual | PG | 337 | 0.0888 | -0.01 | 2.1 |