Earthquake with magnitude of ML 1.6 on date 02-12-2021 and time 05:06:20 (Italy) in region 2 km S Lanuvio (RM)

A magnitude ML 1.6 earthquake occured in region: 2 km S Lanuvio (RM), on

  • 02-12-2021 04:06:20 (UTC)
  • 02-12-2021 05:06:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.664, 12.702 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Lanuvio RM 2 13632 13632
Genzano di Roma RM 5 23970 37602
Nemi RM 6 1943 39545
Ariccia RM 7 19407 58952
Velletri RM 7 53303 112255
Albano Laziale RM 8 41715 153970
Aprilia LT 9 73446 227416
Castel Gandolfo RM 10 8997 236413
Rocca di Papa RM 11 17034 253447
Marino RM 12 43026 296473
Lariano RM 13 13432 309905
Cisterna di Latina LT 13 36868 346773
Grottaferrata RM 14 20327 367100
Ardea RM 14 49183 416283
Rocca Priora RM 16 11962 428245
Frascati RM 16 22087 450332
Monte Compatri RM 16 11978 462310
Pomezia RM 17 62966 525276
Monte Porzio Catone RM 17 8693 533969
Ciampino RM 18 38412 572381
Cori LT 18 11065 583446
Rocca Massima LT 18 1136 584582
San Cesareo RM 19 15153 599735
Colonna RM 20 4287 604022
Artena RM 20 14276 618298

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km W of Velletri (53303 inhabitants)
9 Km NE of Aprilia (73446 inhabitants)
17 Km E of Pomezia (62966 inhabitants)
25 Km N of Anzio (54211 inhabitants)
28 Km NW of Latina (125985 inhabitants)
31 Km SE of Roma (2864731 inhabitants)
34 Km S of Tivoli (56533 inhabitants)
38 Km S of Guidonia Montecelio (88673 inhabitants)
40 Km E of Fiumicino (78395 inhabitants)
89 Km SE of Civitavecchia (52991 inhabitants)
96 Km SW of L'Aquila (69753 inhabitants)
97 Km SE of Viterbo (67173 inhabitants)
100 Km S of Terni (111501 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.6 2021-12-02
04:06:20
41.6643 12.7017 11 2021-12-02
04:13:08
Sala Sismica INGV-Roma 98037311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-02 04:06:20 ± 0.11
Latitude 41.6643 ± 0.0054
Longitude 12.7017 ± 0.0084
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98037311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 740
Semi-minor axis of confidence ellipse (meter) 480
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 245
Circular confidence region, given by single value of horizontal uncertainty (meter) 740
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.661
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 98037311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-02 04:13:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-12-02T04:07:06.41 3.0 undecidable manual S 0.58 0
IV.SACS.HHZ. 2021-12-02T04:07:02.26 3.0 undecidable manual S -0.12 0
IV.VVLD.HHZ. 2021-12-02T04:06:43.80 3.0 undecidable manual S -1.2 0
IV.LRP.EHZ. 2021-12-02T04:06:42.71 0.3 undecidable manual S 91 0.661 50 0.4 62
IV.GUAR.HHZ. 2021-12-02T04:06:36.44 0.3 undecidable manual S 74 0.4739 50 -0.31 66
IV.GIUL.HHZ. 2021-12-02T04:06:35.75 0.3 undecidable manual S 104 0.4263 50 0.39 66
IV.CERT.HHZ. 2021-12-02T04:06:33.78 0.3 undecidable manual S 36 0.3525 50 0.61 63
IV.VVLD.HHZ. 2021-12-02T04:06:33.54 3.0 positive manual P -0.38 0
IV.MTCE.HHZ. 2021-12-02T04:06:32.97 0.3 undecidable manual S 5 0.3597 50 -0.4 66
IV.LRP.EHZ. 2021-12-02T04:06:32.92 0.3 undecidable manual P 91 0.661 50 -0.02 68
IV.SRES.HHZ. 2021-12-02T04:06:31.93 3.0 negative manual P -0.15 0
IV.LATB.EHZ. 2021-12-02T04:06:30.03 0.3 undecidable manual S 131 0.259 50 -0.36 68
IV.RCAV.EHZ. 2021-12-02T04:06:30.23 0.3 undecidable manual S 45 0.2581 50 -0.13 72
IV.GUAR.HHZ. 2021-12-02T04:06:29.63 0.6 undecidable manual P 74 0.4739 50 -0.1 46
IV.GIUL.HHZ. 2021-12-02T04:06:28.62 0.6 negative manual P 104 0.4263 50 -0.31 45
IV.MTCE.HHZ. 2021-12-02T04:06:27.59 0.6 negative manual P 5 0.3597 50 -0.19 46
IV.CERT.HHZ. 2021-12-02T04:06:27.67 0.6 positive manual P 36 0.3525 50 0 48
IV.SAMA.EHZ. 2021-12-02T04:06:26.63 0.3 undecidable manual S 325 0.1421 124 -0.08 74
IV.RMP.HHZ. 2021-12-02T04:06:26.82 0.3 undecidable manual S 1 0.1475 123 -0.07 74
IV.RCAV.EHZ. 2021-12-02T04:06:25.93 0.3 negative manual P 45 0.2581 50 -0.11 72
IV.RDP.HHZ. 2021-12-02T04:06:25.05 0.3 undecidable manual S 4 0.0962 135 -0.29 72
IV.VIVA.HHZ. 2021-12-02T04:06:25.52 0.3 undecidable manual S 31 0.0998 133 0.08 75
IV.ROM9.HNZ. 2021-12-02T04:06:25.87 0.3 undecidable manual P 320 0.2149 50 0.56 65
IV.LATB.EHZ. 2021-12-02T04:06:25.75 0.6 negative manual P 131 0.259 50 -0.31 46
IV.RMP.HHZ. 2021-12-02T04:06:24.06 1.0 positive manual P 1 0.1475 123 0.02 25
IV.VIVA.HHZ. 2021-12-02T04:06:23.30 0.1 positive manual P 31 0.0998 133 0.1 99
IV.LAV9.HNZ. 2021-12-02T04:06:23.85 0.3 undecidable manual S 351 0.0135 172 0.02 77
IV.SAMA.EHZ. 2021-12-02T04:06:23.89 0.3 undecidable manual P 325 0.1421 124 -0.04 75
IV.RDP.HHZ. 2021-12-02T04:06:23.24 0.1 negative manual P 4 0.0962 135 0.1 99
IV.LAV9.HNZ. 2021-12-02T04:06:22.41 0.1 negative manual P 351 0.0135 172 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LAV9.HHE. ML:2.6 0.0074294625 0.2208 AML other m 2021-12-02T04:06:25.35
IV.LAV9.HNE. ML:2.6 0.0072952415 0.2208 AML other m 2021-12-02T04:06:25.35
IV.RDP.HHE. ML:2.7 0.005581156 0.3008 AML other m 2021-12-02T04:06:25.30
IV.RDP.HHN. ML:2.6 0.005005 0.22 AML other m 2021-12-02T04:06:25.89
IV.LAV9.HHN. ML:2.6 0.007146308 0.2592 AML other m 2021-12-02T04:06:26.64
IV.LAV9.HNN. ML:2.6 0.0070626775 0.2784 AML other m 2021-12-02T04:06:26.65
IV.SAMA.EHN. ML:1.3 0.0001815 0.06 AML other m 2021-12-02T04:06:26.69
IV.RMP.HHE. ML:2.5 0.0029579545 0.3008 AML other m 2021-12-02T04:06:30.52
IV.SAMA.EHE. ML:1.6 0.0003945 0.16 AML other m 2021-12-02T04:06:27.54
IV.RMP.HHN. ML:2.6 0.00391785 0.2176 AML other m 2021-12-02T04:06:28.19
IV.VIVA.HHN. ML:2.4 0.003205 0.36 AML other m 2021-12-02T04:06:28.94
IV.RCAV.EHE. ML:1.6 0.0002255 0.2 AML other m 2021-12-02T04:06:30.69
IV.VIVA.HHE. ML:2.4 0.002675 1.74 AML other m 2021-12-02T04:06:32.91
IV.RCAV.EHN. ML:1.6 0.00019028845 0.16 AML other m 2021-12-02T04:06:31.18
IV.CERT.HHN. ML:1.7 0.0001578518 0.2208 AML other m 2021-12-02T04:06:34.86
IV.CERT.HHE. ML:1.3 7.525E-5 0.72 AML other m 2021-12-02T04:06:36.73
IV.GUAR.HHN. ML:2 0.000233 0.16 AML other m 2021-12-02T04:06:37.35
IV.GUAR.HHE. ML:2 0.00021497115 0.1568 AML other m 2021-12-02T04:06:37.58
IV.VVLD.HHE. ML:1.5 4.1871615E-5 0.16 AML other m 2021-12-02T04:06:45.09
IV.VVLD.HHN. ML:1.6 5.9208715E-5 0.48 AML other m 2021-12-02T04:06:45.64
IV.LATB.EHE. ML:1 5.1942865E-5 0.7008 AML other m 2021-12-02T04:06:40.89
IV.LATB.EHN. ML:0.8 3.728005E-5 0.8608 AML other m 2021-12-02T04:06:33.94
IV.MTCE.HHE. ML:1.4 8.7543285E-5 0.4608 AML other m 2021-12-02T04:06:33.10
IV.MTCE.HHN. ML:1.3 7.4583955E-5 0.3424 AML other m 2021-12-02T04:06:33.43
IV.CERT.HNE. ML:1.6 0.00014415213 0.4 AML other m 2021-12-02T04:06:38.02
IV.CERT.HNN. ML:1.8 0.00020456785 0.24 AML other m 2021-12-02T04:06:34.74
IV.GIUL.HHE. ML:1.5 9.5743505E-5 0.1408 AML other m 2021-12-02T04:06:36.90
IV.GIUL.HHN. ML:1.6 9.819189E-5 0.2208 AML other m 2021-12-02T04:06:37.01
IV.GUAR.HNE. ML:1.9 0.00019618405 0.16 AML other m 2021-12-02T04:06:37.59
IV.GUAR.HNN. ML:2 0.0002159548 0.1696 AML other m 2021-12-02T04:06:37.35
IV.SRES.HHE. ML:1.6 6.6656205E-5 1.9808 AML other m 2021-12-02T04:06:40.64
IV.SRES.HHN. ML:1.5 5.835193E-5 1.5424 AML other m 2021-12-02T04:06:54.01
IV.LRP.EHE. ML:1.9 0.00013070859 0.2016 AML other m 2021-12-02T04:06:43.50
IV.LRP.EHN. ML:1.2 2.73575E-5 0.2208 AML other m 2021-12-02T04:06:44.56
IV.VVLD.HNE. ML:1.9 0.000100822785 0.5408 AML other m 2021-12-02T04:06:42.84
IV.VVLD.HNN. ML:2 0.0001324434 0.7392 AML other m 2021-12-02T04:07:01.48
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download