A magnitude Md 2.3 earthquake occured in region: 6 km NW Colonna (RM), on
and geographic coordinates (lat, lon) 41.8790, 12.7000 at 18 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 |
---|---|---|---|---|
Colonna | RM | 7 | 4287 | 4287 |
Monte Porzio Catone | RM | 7 | 8693 | 12980 |
Frascati | RM | 8 | 22087 | 35067 |
Monte Compatri | RM | 8 | 11978 | 47045 |
Gallicano nel Lazio | RM | 10 | 6334 | 53379 |
Grottaferrata | RM | 10 | 20327 | 73706 |
San Cesareo | RM | 11 | 15153 | 88859 |
Rocca Priora | RM | 11 | 11962 | 100821 |
Ciampino | RM | 12 | 38412 | 139233 |
Zagarolo | RM | 12 | 17843 | 157076 |
Marino | RM | 13 | 43026 | 200102 |
Tivoli | RM | 13 | 56533 | 256635 |
Rocca di Papa | RM | 13 | 17034 | 273669 |
Guidonia Montecelio | RM | 14 | 88673 | 362342 |
Fonte Nuova | RM | 15 | 32562 | 394904 |
San Gregorio da Sassola | RM | 15 | 1619 | 396523 |
Castel Gandolfo | RM | 15 | 8997 | 405520 |
Casape | RM | 16 | 744 | 406264 |
Poli | RM | 16 | 2418 | 408682 |
Palestrina | RM | 16 | 21672 | 430354 |
Castel San Pietro Romano | RM | 17 | 902 | 431256 |
Albano Laziale | RM | 17 | 41715 | 472971 |
Sant'Angelo Romano | RM | 17 | 5018 | 477989 |
Nemi | RM | 18 | 1943 | 479932 |
Ariccia | RM | 18 | 19407 | 499339 |
Castel Madama | RM | 18 | 7399 | 506738 |
Roma | RM | 18 | 2864731 | 3371469 |
Mentana | RM | 18 | 22921 | 3394390 |
Marcellina | RM | 18 | 7280 | 3401670 |
Labico | RM | 19 | 6379 | 3408049 |
San Polo dei Cavalieri | RM | 19 | 2992 | 3411041 |
Genzano di Roma | RM | 19 | 23970 | 3435011 |
Lariano | RM | 20 | 13432 | 3448443 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1990-02-20 22:34:58 |
41.879 | 12.7 | 18 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 110569 |
Field | Value |
---|---|
Time (UTC) | 1990-02-20 22:34:58 ± 0.496 |
Latitude | 41.8790 ± 0.0381 |
Longitude | 12.7000 ± 0.0425 |
Depth (km) | 18 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 110569 |
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) | 5509.1 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 228 |
Number of associated phases, regardless of their use for origin computation | 9 |
Number of defining phases | 9 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00057 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00753 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 2.3 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 110569 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 18:42:50 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.SDI.Z. | 1990-02-20T22:35:26.91 | 10.0 | undecidable | manual | SN | 101 | 0.8325 | -0.33 | 0.3 | |
--.SDI.Z. | 1990-02-20T22:35:14.65 | 10.0 | negative | manual | PN | 101 | 0.8325 | -0.31 | 1.3 | |
--.AQU.Z. | 1990-02-20T22:35:11.94 | 10.0 | undecidable | manual | PG | 47 | 0.6993 | -0.5 | 0.5 | |
--.CP9.Z. | 1990-02-20T22:35:06.92 | 10.0 | undecidable | manual | SG | 95 | 0.1776 | -0.08 | 0.5 | |
--.CP9.Z. | 1990-02-20T22:35:04.30 | 10.0 | negative | manual | PG | 95 | 0.1776 | 0.75 | 0.8 | |
--.RDP.Z. | 1990-02-20T22:35:04.90 | 10.0 | undecidable | manual | SG | 174 | 0.1221 | -0.47 | 0.4 | |
--.RMP.Z. | 1990-02-20T22:35:03.13 | 10.0 | undecidable | manual | SG | 178 | 0.0666 | -1.29 | 0 | |
--.RDP.Z. | 1990-02-20T22:35:02.58 | 10.0 | positive | manual | PG | 174 | 0.1221 | 0.24 | 2.4 | |
--.RMP.Z. | 1990-02-20T22:35:01.78 | 10.0 | negative | manual | PG | 178 | 0.0666 | -0.02 | 2.7 |