A magnitude Md 2.1 earthquake occured in region: 8 km NW Colonna (RM), on
and geographic coordinates (lat, lon) 41.8950, 12.7070 at 5 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 | 8 | 4287 | 4287 |
Monte Porzio Catone | RM | 9 | 8693 | 12980 |
Monte Compatri | RM | 10 | 11978 | 24958 |
Gallicano nel Lazio | RM | 10 | 6334 | 31292 |
Frascati | RM | 10 | 22087 | 53379 |
Tivoli | RM | 11 | 56533 | 109912 |
San Cesareo | RM | 11 | 15153 | 125065 |
Guidonia Montecelio | RM | 12 | 88673 | 213738 |
Zagarolo | RM | 12 | 17843 | 231581 |
Rocca Priora | RM | 12 | 11962 | 243543 |
Grottaferrata | RM | 12 | 20327 | 263870 |
Ciampino | RM | 13 | 38412 | 302282 |
Fonte Nuova | RM | 14 | 32562 | 334844 |
San Gregorio da Sassola | RM | 14 | 1619 | 336463 |
Marino | RM | 14 | 43026 | 379489 |
Rocca di Papa | RM | 15 | 17034 | 396523 |
Casape | RM | 15 | 744 | 397267 |
Poli | RM | 16 | 2418 | 399685 |
Sant'Angelo Romano | RM | 16 | 5018 | 404703 |
Castel Madama | RM | 16 | 7399 | 412102 |
Palestrina | RM | 16 | 21672 | 433774 |
Castel San Pietro Romano | RM | 17 | 902 | 434676 |
Mentana | RM | 17 | 22921 | 457597 |
Marcellina | RM | 17 | 7280 | 464877 |
Castel Gandolfo | RM | 17 | 8997 | 473874 |
San Polo dei Cavalieri | RM | 17 | 2992 | 476866 |
Roma | RM | 18 | 2864731 | 3341597 |
Albano Laziale | RM | 19 | 41715 | 3383312 |
Monterotondo | RM | 19 | 40830 | 3424142 |
Labico | RM | 19 | 6379 | 3430521 |
Nemi | RM | 19 | 1943 | 3432464 |
Ariccia | RM | 20 | 19407 | 3451871 |
Palombara Sabina | RM | 20 | 13269 | 3465140 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1 | 1988-05-20 07:52:09 |
41.895 | 12.707 | 5 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 69809 |
Field | Value |
---|---|
Time (UTC) | 1988-05-20 07:52:09 ± 0.852 |
Latitude | 41.8950 ± 0.0294 |
Longitude | 12.7070 ± 0.0408 |
Depth (km) | 5 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 69809 |
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) | 4698.7 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 283 |
Number of associated phases, regardless of their use for origin computation | 6 |
Number of defining phases | 6 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.4 |
Epicentral distance of station closest to the epicenter (degree) | 0.00073 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00162 |
Number of stations at which the event was observed | 3 |
Number of stations from which data was used for origin computation | 3 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 69809 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 18:06:06 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CP9.Z. | 1988-05-20T07:52:17.27 | 10.0 | undecidable | manual | SG | 100 | 0.1776 | 0.57 | 0.4 | |
--.RDP.Z. | 1988-05-20T07:52:14.50 | 10.0 | undecidable | manual | SG | 176 | 0.1332 | -0.4 | 0.7 | |
--.CP9.Z. | 1988-05-20T07:52:13.15 | 10.0 | undecidable | manual | PG | 100 | 0.1776 | -0.44 | 1.3 | |
--.RDP.Z. | 1988-05-20T07:52:13.00 | 10.0 | undecidable | manual | PG | 176 | 0.1332 | 0.45 | 1.5 | |
--.RMP.Z. | 1988-05-20T07:52:12.75 | 10.0 | undecidable | manual | SG | 182 | 0.0777 | -0.27 | 0.8 | |
--.RMP.Z. | 1988-05-20T07:52:11.34 | 10.0 | undecidable | manual | PG | 182 | 0.0777 | -0.13 | 0 |