A magnitude ML 2.1 earthquake occured in region: 2 km SW Ariccia (RM), on
and geographic coordinates (lat, lon) 41.7, 12.66 at 12 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 | 3 | 19407 | 19407 |
Genzano di Roma | RM | 3 | 23970 | 43377 |
Albano Laziale | RM | 3 | 41715 | 85092 |
Lanuvio | RM | 5 | 13632 | 98724 |
Castel Gandolfo | RM | 5 | 8997 | 107721 |
Nemi | RM | 5 | 1943 | 109664 |
Marino | RM | 8 | 43026 | 152690 |
Rocca di Papa | RM | 8 | 17034 | 169724 |
Grottaferrata | RM | 10 | 20327 | 190051 |
Velletri | RM | 10 | 53303 | 243354 |
Aprilia | LT | 12 | 73446 | 316800 |
Frascati | RM | 12 | 22087 | 338887 |
Ciampino | RM | 12 | 38412 | 377299 |
Pomezia | RM | 13 | 62966 | 440265 |
Rocca Priora | RM | 14 | 11962 | 452227 |
Ardea | RM | 14 | 49183 | 501410 |
Monte Compatri | RM | 14 | 11978 | 513388 |
Monte Porzio Catone | RM | 14 | 8693 | 522081 |
Lariano | RM | 15 | 13432 | 535513 |
Colonna | RM | 17 | 4287 | 539800 |
San Cesareo | RM | 18 | 15153 | 554953 |
Cisterna di Latina | LT | 19 | 36868 | 591821 |
These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 2.1 | 2020-07-28 15:07:52 |
41.7 | 12.66 | 12 | 2020-11-19 12:36:56 |
Bollettino Sismico Italiano INGV | 81725251 |
Reviewed Rev100 |
ML 2.3 | 2020-07-28 15:07:52 |
41.71 | 12.62 | 14 | 2020-07-28 15:17:59 |
Sala Sismica INGV-Roma | 81425421 |
Field | Value |
---|---|
Time (UTC) | 2020-07-28 15:07:52 ± 0.12 |
Latitude | 41.70 ± 0.01 |
Longitude | 12.66 ± 0.01 |
Depth (km) | 12 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 81725251 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 713 |
Semi-minor axis of confidence ellipse (meter) | 216 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 51 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 710 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 175 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.03867 |
Epicentral distance of station farthest from the epicenter (degree) | 0.60884 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | 0.4 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 81725251 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2020-09-17 14:18:57 |
Field | Value |
---|---|
Value | 2.3 |
Uncertainty | 0.3 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 81425421 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-07-28 15:17:59 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.GIUL.HHZ. | 2020-07-28T15:08:09.03 | 0.6 | undecidable | manual | S | 108 | 0.4685 | 91 | 0.23 | 45 |
IV.TOLF.HHZ. | 2020-07-28T15:08:04.59 | 0.3 | undecidable | manual | P | 307 | 0.6088 | 91 | 0.29 | 64 |
IV.LATB.EHN. | 2020-07-28T15:08:03.75 | 0.6 | undecidable | manual | S | 132 | 0.3076 | 92 | -0.3 | 45 |
IV.GIUL.HHZ. | 2020-07-28T15:08:01.48 | 0.3 | undecidable | manual | P | 108 | 0.4685 | 91 | -0.41 | 64 |
IV.LATB.EHN. | 2020-07-28T15:07:58.79 | 0.3 | undecidable | manual | P | 132 | 0.3076 | 92 | -0.36 | 67 |
IV.RMP.HHZ. | 2020-07-28T15:07:58.45 | 0.1 | undecidable | manual | S | 18 | 0.116 | 112 | 0.03 | 100 |
IV.RCAV.EHZ. | 2020-07-28T15:07:58.48 | 0.3 | undecidable | manual | P | 56 | 0.259 | 93 | 0.16 | 71 |
IV.RDP.HHZ. | 2020-07-28T15:07:57.35 | 0.3 | undecidable | manual | S | 34 | 0.071 | 135 | 0.04 | 75 |
IV.VIVA.HHZ. | 2020-07-28T15:07:57.79 | 0.6 | undecidable | manual | S | 60 | 0.0971 | 121 | -0.13 | 49 |
IV.SAMA.EHZ. | 2020-07-28T15:07:57.33 | 0.6 | undecidable | manual | S | 328 | 0.0926 | 123 | -0.49 | 46 |
IV.LAV9.HHZ. | 2020-07-28T15:07:56.82 | 0.6 | undecidable | manual | S | 127 | 0.0387 | 154 | 0.07 | 49 |
IV.RMP.HHZ. | 2020-07-28T15:07:56.01 | 0.1 | negative | manual | P | 18 | 0.116 | 112 | 0.11 | 98 |
IV.MA9.HHZ. | 2020-07-28T15:07:56.92 | 0.3 | undecidable | manual | S | 1 | 0.0683 | 136 | -0.33 | 72 |
IV.VIVA.HHZ. | 2020-07-28T15:07:55.80 | 0.1 | undecidable | manual | P | 60 | 0.0971 | 121 | 0.19 | 97 |
IV.SAMA.EHZ. | 2020-07-28T15:07:55.36 | 0.1 | positive | manual | P | 328 | 0.0926 | 123 | -0.19 | 98 |
IV.MA9.HHZ. | 2020-07-28T15:07:55.25 | 0.1 | undecidable | manual | P | 1 | 0.0683 | 136 | 0.02 | 100 |
IV.RDP.HHZ. | 2020-07-28T15:07:55.37 | 0.1 | undecidable | manual | P | 34 | 0.071 | 135 | 0.11 | 98 |
IV.LAV9.HHZ. | 2020-07-28T15:07:55.16 | 0.1 | undecidable | manual | P | 127 | 0.0387 | 154 | 0.22 | 96 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LAV9.HHE. | ML:2.2 | 0.002176246 | 0.3968 | AML | other | m | 2020-07-28T15:07:57.05 |
IV.LAV9.HNE. | ML:2.2 | 0.0022743735 | 0.448 | AML | other | m | 2020-07-28T15:07:57.05 |
IV.LAV9.HHN. | ML:2.3 | 0.0026624475 | 0.5632 | AML | other | m | 2020-07-28T15:07:57.13 |
IV.LAV9.HNN. | ML:2.3 | 0.002669813 | 0.576 | AML | other | m | 2020-07-28T15:07:57.13 |
IV.RDP.HHN. | ML:2.1 | 0.0016433855 | 0.3456 | AML | other | m | 2020-07-28T15:07:57.82 |
IV.RDP.HHE. | ML:1.6 | 0.000569762515 | 0.128 | AML | other | m | 2020-07-28T15:07:57.80 |
IV.VIVA.HHE. | ML:2 | 0.0011567655 | 0.4352 | AML | other | m | 2020-07-28T15:07:58.35 |
IV.RMP.HHE. | ML:2.4 | 0.002596141 | 0.1152 | AML | other | m | 2020-07-28T15:07:58.59 |
IV.VIVA.HHN. | ML:2.1 | 0.0014673865 | 0.2048 | AML | other | m | 2020-07-28T15:07:58.51 |
IV.RMP.HHN. | ML:2.4 | 0.002609289 | 0.2432 | AML | other | m | 2020-07-28T15:07:58.75 |
IV.GIUL.HHN. | ML:0.9 | 2.153994E-5 | 0.4096 | AML | other | m | 2020-07-28T15:08:09.29 |
IV.GIUL.HHE. | ML:0.9 | 1.7837E-5 | 0.2176 | AML | other | m | 2020-07-28T15:08:09.61 |