Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 07-07-2019 and time 13:57:18 (Italy) in region 3 km NE Colonna (RM)

A magnitude ML 1.7 earthquake occured in region: 3 km NE Colonna (RM), on

  • 07-07-2019 11:57:18 (UTC)
  • 07-07-2019 13:57:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8620, 12.7660 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Colonna RM 3 4287 4287
Gallicano nel Lazio RM 5 6334 10621
San Cesareo RM 5 15153 25774
Zagarolo RM 6 17843 43617
Monte Compatri RM 6 11978 55595
Monte Porzio Catone RM 6 8693 64288
Rocca Priora RM 8 11962 76250
Frascati RM 9 22087 98337
Palestrina RM 11 21672 120009
San Gregorio da Sassola RM 11 1619 121628
Castel San Pietro Romano RM 11 902 122530
Poli RM 11 2418 124948
Casape RM 11 744 125692
Grottaferrata RM 11 20327 146019
Tivoli RM 12 56533 202552
Rocca di Papa RM 12 17034 219586
Labico RM 13 6379 225965
Marino RM 13 43026 268991
Cave RM 15 11287 280278
Ciampino RM 15 38412 318690
Rocca di Cave RM 15 377 319067
Castel Madama RM 15 7399 326466
Capranica Prenestina RM 16 351 326817
Guidonia Montecelio RM 16 88673 415490
Valmontone RM 16 15959 431449
Lariano RM 16 13432 444881
Castel Gandolfo RM 16 8997 453878
Nemi RM 16 1943 455821
Pisoniano RM 17 770 456591
Albano Laziale RM 17 41715 498306
Ariccia RM 18 19407 517713
Genazzano RM 18 6036 523749
San Polo dei Cavalieri RM 18 2992 526741
Genzano di Roma RM 18 23970 550711
San Vito Romano RM 18 3273 553984
Marcellina RM 18 7280 561264
Ciciliano RM 18 1336 562600
Artena RM 19 14276 576876
Fonte Nuova RM 19 32562 609438
Velletri RM 20 53303 662741
Sant'Angelo Romano RM 20 5018 667759
Sambuci RM 20 925 668684
Vicovaro RM 20 4019 672703

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km S of Tivoli (56533 inhabitants)
16 Km S of Guidonia Montecelio (88673 inhabitants)
20 Km N of Velletri (53303 inhabitants)
24 Km E of Roma (2864731 inhabitants)
31 Km NE of Pomezia (62966 inhabitants)
31 Km NE of Aprilia (73446 inhabitants)
45 Km E of Fiumicino (78395 inhabitants)
45 Km N of Latina (125985 inhabitants)
47 Km N of Anzio (54211 inhabitants)
76 Km SW of L'Aquila (69753 inhabitants)
78 Km S of Terni (111501 inhabitants)
82 Km SE of Viterbo (67173 inhabitants)
84 Km E of Civitavecchia (52991 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.7 2019-07-07
11:57:18		 41.8623 12.7655 10 2019-11-13
14:30:53		 Bollettino Sismico Italiano INGV 70366771
Reviewed
Rev100 		ML 1.6 2019-07-07
11:57:18		 41.86 12.7697 11 2019-07-07
12:06:02		 Sala Sismica INGV-Roma 70325321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-07 11:57:18 ± 0.04
Latitude 41.8623 ± 0.0027
Longitude 12.7655 ± 0.0036
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 70366771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 314
Semi-minor axis of confidence ellipse (meter) 260
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.83457
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations 22
Type of magnitude ML
Reference to an origin 70366771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-08 10:34:13

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 70325321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-07 12:06:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SARZ.HHZ. 2019-07-07T11:59:13.71 3.0 undecidable manual Sn 6.48 0
OX.DRE.HHZ. 2019-07-07T11:59:10.94 3.0 undecidable manual Sn -2.18 0
IX.STN3.HHZ.02 2019-07-07T11:58:37.27 3.0 undecidable manual Sg 8.81 0
CR.ZAG.BHZ. 2019-07-07T11:58:36.50 3.0 negative manual Pg 10.84 0
IV.PTCC.HHZ. 2019-07-07T11:58:28.96 3.0 positive manual Pn 3.72 0
IV.SPS2.HHZ. 2019-07-07T11:58:19.44 3.0 positive manual Pn 5.82 0
IV.PE3.EHZ. 2019-07-07T11:58:17.42 3.0 undecidable manual Sg 5.64 0
IV.MCRV.HHZ. 2019-07-07T11:57:58.26 3.0 positive manual Pg 7.07 0
IV.PE3.EHZ. 2019-07-07T11:57:48.39 3.0 positive manual Pn 0.46 0
IV.GAVE.EHZ. 2019-07-07T11:57:45.50 0.6 undecidable manual S 7 92.6406 50 0.16 42
IV.LNSS.HNZ. 2019-07-07T11:57:43.48 1.0 undecidable manual S 15 85.1481 50 0.14 21
IV.MMUR.HNZ. 2019-07-07T11:57:43.87 3.0 undecidable manual P -0.54 0
IV.VVLD.HHZ. 2019-07-07T11:57:39.21 0.6 undecidable manual S 89 70.8735 50 -0.31 43
IV.LRP.EHZ. 2019-07-07T11:57:39.99 0.3 undecidable manual S 109 71.9724 50 0.16 66
IV.PTQR.HHZ. 2019-07-07T11:57:35.38 0.3 undecidable manual S 71 55.3002 50 0.01 70
IV.GIUL.HHZ. 2019-07-07T11:57:35.16 0.6 undecidable manual S 130 52.7028 50 0.48 42
IV.FIAM.HHZ. 2019-07-07T11:57:34.83 0.6 undecidable manual S 33 53.502 50 -0.06 46
IV.GAVE.EHZ. 2019-07-07T11:57:33.84 0.1 undecidable manual P 7 92.6406 50 0.05 86
IV.SRES.HHN. 2019-07-07T11:57:33.15 0.6 undecidable manual S 333 46.62 50 0.11 46
IV.RM33.HNE. 2019-07-07T11:57:32.11 0.3 undecidable manual P 27 80.6637 50 0.17 65
IV.GUAR.HNN. 2019-07-07T11:57:32.77 0.3 undecidable manual S 99 45.8208 50 -0.07 70
IT.MMP1.HGE. 2019-07-07T11:57:32.39 0.3 undecidable manual S 358 42.9237 50 0.33 67
IV.LATB.EHZ. 2019-07-07T11:57:32.00 0.3 undecidable manual S 158 44.0226 50 -0.35 67
IV.LNSS.HNZ. 2019-07-07T11:57:32.73 0.1 undecidable manual P 15 85.1481 50 0.1 87
IV.LRP.EHZ. 2019-07-07T11:57:30.19 0.3 undecidable manual P 109 71.9724 50 -0.41 62
IT.CSO1.HGZ. 2019-07-07T11:57:30.83 0.3 undecidable manual S 45 37.5291 50 0.21 69
IV.VVLD.HHZ. 2019-07-07T11:57:30.60 0.6 undecidable manual P 89 70.8735 50 0.17 44
IV.FIAM.HHZ. 2019-07-07T11:57:27.54 0.1 undecidable manual P 33 53.502 50 -0.21 90
IV.PTQR.HHZ. 2019-07-07T11:57:27.82 0.1 undecidable manual P 71 55.3002 50 -0.21 90
IT.MMP1.HGE. 2019-07-07T11:57:26.21 0.3 undecidable manual P 358 42.9237 50 0.09 70
IV.LATB.EHZ. 2019-07-07T11:57:26.02 0.1 positive manual P 158 44.0226 50 -0.27 90
IV.SRES.HHN. 2019-07-07T11:57:26.60 0.3 undecidable manual P 333 46.62 50 -0.08 70
IV.GUAR.HNN. 2019-07-07T11:57:26.35 0.1 undecidable manual P 99 45.8208 50 -0.22 91
IV.LAV9.HNZ. 2019-07-07T11:57:26.46 0.6 undecidable manual S 195 21.1677 116 0.25 47
IT.CSO1.HGZ. 2019-07-07T11:57:25.41 0.3 undecidable manual P 45 37.5291 50 0.12 71
IV.RCAV.EHZ. 2019-07-07T11:57:24.25 0.3 undecidable manual S 96 14.9739 125 -0.08 74
IV.SAMA.EHE. 2019-07-07T11:57:24.55 0.3 undecidable manual S 238 16.9719 122 -0.36 70
IV.MTCE.HHZ. 2019-07-07T11:57:24.86 0.3 undecidable manual S 354 17.871 120 -0.33 70
IV.GIUL.HHZ. 2019-07-07T11:57:24.63 3.0 undecidable manual P 130 52.7028 50 -3 0
IV.MA9.HHN. 2019-07-07T11:57:23.66 0.3 undecidable manual S 221 13.5753 128 -0.27 71
IV.RDP.HHZ. 2019-07-07T11:57:23.79 0.3 undecidable manual S 202 12.1767 131 0.22 72
IV.VIVA.HHZ. 2019-07-07T11:57:23.92 0.3 undecidable manual S 178 12.4764 130 0.28 71
IV.RMP.HHZ. 2019-07-07T11:57:22.27 0.3 undecidable manual S 223 7.6812 143 -0.24 73
IV.LAV9.HNZ. 2019-07-07T11:57:22.93 0.1 undecidable manual P 195 21.1677 116 0.19 96
IV.MTCE.HHZ. 2019-07-07T11:57:22.13 0.1 positive manual P 354 17.871 120 -0.02 100
IV.VIVA.HHZ. 2019-07-07T11:57:21.45 0.1 undecidable manual P 178 12.4764 130 0.19 97
IV.RCAV.EHZ. 2019-07-07T11:57:21.68 0.1 negative manual P 96 14.9739 125 0.02 100
IV.MA9.HHN. 2019-07-07T11:57:21.43 0.3 undecidable manual P 221 13.5753 128 0 76
IV.SAMA.EHE. 2019-07-07T11:57:21.94 0.1 positive manual P 238 16.9719 122 -0.05 99
IV.RDP.HHZ. 2019-07-07T11:57:21.53 0.1 undecidable manual P 202 12.1767 131 0.31 95
IV.RMP.HHZ. 2019-07-07T11:57:20.70 0.1 undecidable manual P 223 7.6812 143 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RMP.HHN. ML:2.6 0.0064849999999999994 0.2 AML other m 2019-07-07T11:57:22.52
IV.RMP.HHE. ML:2.5 0.00442 0.6 AML other m 2019-07-07T11:57:23.24
IV.RDP.HHN. ML:2.4 0.00294 0.38 AML other m 2019-07-07T11:57:24.20
IV.VIVA.HHN. ML:2.6 0.00421 0.36 AML other m 2019-07-07T11:57:24.76
IV.RDP.HHE. ML:2.3 0.002165 0.72 AML other m 2019-07-07T11:57:24.50
IV.MTCE.HHN. ML:2.0 0.0007769999999999999 0.4 AML other m 2019-07-07T11:57:25.32
IV.MTCE.HHE. ML:2.0 0.0007809999999999999 0.32 AML other m 2019-07-07T11:57:25.44
IV.RCAV.EHE. ML:1.7 0.000499 1.6 AML other m 2019-07-07T11:57:25.94
IV.RCAV.EHN. ML:1.7 0.0004825 0.16 AML other m 2019-07-07T11:57:25.99
IV.VIVA.HHE. ML:2.5 0.00321 0.28 AML other m 2019-07-07T11:57:27.18
IV.LATB.EHN. ML:1.1 0.0000382 0.6 AML other m 2019-07-07T11:57:32.46
IV.LATB.EHE. ML:1.2 0.000046949999999999996 1.52 AML other m 2019-07-07T11:57:32.04
IV.FIAM.HHN. ML:1.3 0.00004975 0.54 AML other m 2019-07-07T11:57:36.08
IV.PTQR.HHE. ML:1.4 0.00005255 0.4 AML other m 2019-07-07T11:57:36.03
IV.PTQR.HHN. ML:1.4 0.0000661 0.3 AML other m 2019-07-07T11:57:36.66
IV.FIAM.HHE. ML:1.3 0.00004405 0.48 AML other m 2019-07-07T11:57:42.39
IV.VVLD.HHN. ML:1.5 0.000049250000000000004 0.58 AML other m 2019-07-07T11:57:44.68
IV.ARRO.EHN. ML:1.7 0.00007195 0.88 AML other m 2019-07-07T11:57:45.59
IV.ARRO.EHE. ML:1.6 0.00005495 0.64 AML other m 2019-07-07T11:57:46.87
IV.VVLD.HHE. ML:1.3 0.00003245 0.72 AML other m 2019-07-07T11:57:48.12
IV.GAVE.EHE. ML:1.9 0.00007769999999999999 1 AML other m 2019-07-07T11:57:49.12
IV.GAVE.EHN. ML:1.9 0.0000862 0.28 AML other m 2019-07-07T11:57:49.65
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