A magnitude Md 2.1 earthquake occured in region: 1 km NE Ariccia (RM), on
and geographic coordinates (lat, lon) 41.7240, 12.6770 at 10 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 |
---|---|---|---|---|
Ariccia | RM | 1 | 19407 | 19407 |
Albano Laziale | RM | 2 | 41715 | 61122 |
Genzano di Roma | RM | 2 | 23970 | 85092 |
Nemi | RM | 3 | 1943 | 87035 |
Castel Gandolfo | RM | 3 | 8997 | 96032 |
Rocca di Papa | RM | 5 | 17034 | 113066 |
Lanuvio | RM | 5 | 13632 | 126698 |
Marino | RM | 5 | 43026 | 169724 |
Grottaferrata | RM | 7 | 20327 | 190051 |
Frascati | RM | 9 | 22087 | 212138 |
Velletri | RM | 9 | 53303 | 265441 |
Monte Compatri | RM | 11 | 11978 | 277419 |
Rocca Priora | RM | 11 | 11962 | 289381 |
Ciampino | RM | 11 | 38412 | 327793 |
Monte Porzio Catone | RM | 11 | 8693 | 336486 |
Lariano | RM | 13 | 13432 | 349918 |
Colonna | RM | 14 | 4287 | 354205 |
Aprilia | LT | 15 | 73446 | 427651 |
San Cesareo | RM | 15 | 15153 | 442804 |
Pomezia | RM | 16 | 62966 | 505770 |
Ardea | RM | 17 | 49183 | 554953 |
Zagarolo | RM | 18 | 17843 | 572796 |
Labico | RM | 19 | 6379 | 579175 |
Cisterna di Latina | LT | 19 | 36868 | 616043 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1
ML-VAX 1.7 |
1991-01-12 12:44:02 |
41.724 | 12.677 | 10 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 134109 |
Field | Value |
---|---|
Time (UTC) | 1991-01-12 12:44:02 ± 0.303 |
Latitude | 41.7240 ± 0.0130 |
Longitude | 12.6770 ± 0.0199 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 134109 |
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) | 2197.1 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 304 |
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) | 0.00040 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00591 |
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 | 2.1 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 134109 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:05:02 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 134109 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 13:07:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.MNS.Z. | 1991-01-12T12:44:25.00 | 10.0 | undecidable | manual | SG | 0 | 0.6549 | -0.34 | 0.1 | |
--.MNS.Z. | 1991-01-12T12:44:15.80 | 10.0 | undecidable | manual | PG | 0 | 0.6549 | 0.23 | 0.5 | |
--.CP9.Z. | 1991-01-12T12:44:12.36 | 10.0 | undecidable | manual | SG | 55 | 0.2442 | 0.28 | 0.2 | |
--.RMP.Z. | 1991-01-12T12:44:07.24 | 10.0 | undecidable | manual | SG | 12 | 0.0777 | 0.05 | 0.8 | |
--.CP9.Z. | 1991-01-12T12:44:07.73 | 10.0 | undecidable | manual | PG | 55 | 0.2442 | -0.19 | 1.2 | |
--.RDP.Z. | 1991-01-12T12:44:06.95 | 10.0 | undecidable | manual | SG? | 40 | 0.0444 | 0.73 | 0 | |
--.RMP.Z. | 1991-01-12T12:44:05.90 | 10.0 | undecidable | manual | PG | 12 | 0.0777 | 0 | 2.1 | |
--.RDP.Z. | 1991-01-12T12:44:04.51 | 10.0 | undecidable | manual | PG | 40 | 0.0444 | -0.02 | 2.1 |