Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 09-07-2019 and time 06:11:53 (Italy) in region 4 km W Gallicano nel Lazio (RM)

A magnitude ML 1.8 earthquake occured in region: 4 km W Gallicano nel Lazio (RM), on

  • 09-07-2019 04:11:53 (UTC)
  • 09-07-2019 06:11:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8640, 12.7780 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Gallicano nel Lazio RM 4 6334 6334
Colonna RM 4 4287 10621
Zagarolo RM 5 17843 28464
San Cesareo RM 5 15153 43617
Monte Compatri RM 7 11978 55595
Monte Porzio Catone RM 7 8693 64288
Rocca Priora RM 8 11962 76250
Palestrina RM 10 21672 97922
Castel San Pietro Romano RM 10 902 98824
San Gregorio da Sassola RM 10 1619 100443
Poli RM 10 2418 102861
Casape RM 10 744 103605
Frascati RM 10 22087 125692
Tivoli RM 11 56533 182225
Grottaferrata RM 12 20327 202552
Labico RM 13 6379 208931
Rocca di Papa RM 13 17034 225965
Cave RM 14 11287 237252
Rocca di Cave RM 14 377 237629
Marino RM 14 43026 280655
Capranica Prenestina RM 15 351 281006
Castel Madama RM 15 7399 288405
Valmontone RM 15 15959 304364
Lariano RM 16 13432 317796
Pisoniano RM 16 770 318566
Guidonia Montecelio RM 16 88673 407239
Ciampino RM 16 38412 445651
Genazzano RM 17 6036 451687
Castel Gandolfo RM 17 8997 460684
Nemi RM 17 1943 462627
San Vito Romano RM 17 3273 465900
San Polo dei Cavalieri RM 17 2992 468892
Ciciliano RM 17 1336 470228
Marcellina RM 18 7280 477508
Albano Laziale RM 18 41715 519223
Artena RM 18 14276 533499
Ariccia RM 18 19407 552906
Genzano di Roma RM 19 23970 576876
Sambuci RM 19 925 577801
Cerreto Laziale RM 19 1118 578919
Vicovaro RM 19 4019 582938
Gerano RM 20 1263 584201
Velletri RM 20 53303 637504
Sant'Angelo Romano RM 20 5018 642522
Fonte Nuova RM 20 32562 675084

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km S of Tivoli (56533 inhabitants)
16 Km S of Guidonia Montecelio (88673 inhabitants)
20 Km N of Velletri (53303 inhabitants)
25 Km E of Roma (2864731 inhabitants)
31 Km NE of Pomezia (62966 inhabitants)
32 Km NE of Aprilia (73446 inhabitants)
45 Km N of Latina (125985 inhabitants)
46 Km E of Fiumicino (78395 inhabitants)
48 Km N of Anzio (54211 inhabitants)
75 Km SW of L'Aquila (69753 inhabitants)
78 Km S of Terni (111501 inhabitants)
83 Km SE of Viterbo (67173 inhabitants)
85 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 1.8 2019-07-09
04:11:53		 41.8643 12.7785 10 2019-11-13
14:30:54		 Bollettino Sismico Italiano INGV 70493791
Reviewed
Rev100 		ML 1.5 2019-07-09
04:11:53		 41.869 12.7755 10 2019-07-09
04:21:47		 Sala Sismica INGV-Roma 70392121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-09 04:11:53 ± 0.04
Latitude 41.8643 ± 0.0018
Longitude 12.7785 ± 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 70493791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 264
Semi-minor axis of confidence ellipse (meter) 232
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 263
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.07734
Epicentral distance of station farthest from the epicenter (degree) 0.83187
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 18
Type of magnitude ML
Reference to an origin 70493791
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-12 08:08:51

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 70392121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-09 04:21:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2019-07-09T04:12:20.75 0.6 undecidable manual S 6 92.3409 50 0.35 40
IV.LRP.EHN. 2019-07-09T04:12:14.88 1.0 undecidable manual S 110 71.0733 50 0.15 22
IV.VVLD.HHZ. 2019-07-09T04:12:14.15 1.0 undecidable manual S 89 69.7746 50 -0.23 22
IV.PTQR.HHZ. 2019-07-09T04:12:10.41 0.6 undecidable manual S 71 54.2013 50 0.18 45
IV.FIAM.HHE. 2019-07-09T04:12:09.61 0.3 undecidable manual S 32 52.8027 50 -0.23 67
IV.GAVE.EHZ. 2019-07-09T04:12:09.02 0.3 undecidable manual P 6 92.3409 50 0.15 63
IV.GIUL.HHZ. 2019-07-09T04:12:09.75 0.3 undecidable manual S 131 52.0035 50 0.11 69
IV.SRES.HHE. 2019-07-09T04:12:08.68 0.6 undecidable manual S 332 46.9197 50 0.41 43
IV.LATB.EHZ. 2019-07-09T04:12:07.15 0.3 undecidable manual S 160 43.8228 50 -0.3 67
IT.MMP1.HGE. 2019-07-09T04:12:07.38 0.6 undecidable manual S 357 42.7239 50 0.2 46
IV.GUAR.HNN. 2019-07-09T04:12:07.77 0.3 undecidable manual S 100 44.8218 50 0.05 70
IV.RM33.HNE. 2019-07-09T04:12:07.37 1.0 undecidable manual P 26 79.9644 50 0.4 20
IV.POFI.HNE. 2019-07-09T04:12:06.74 0.1 undecidable manual P 102 78.8655 50 -0.06 88
IV.VVLD.HHZ. 2019-07-09T04:12:05.31 0.1 undecidable manual P 89 69.7746 50 -0.09 89
IT.CSO1.HGZ. 2019-07-09T04:12:05.33 0.3 undecidable manual S 44 36.6411 50 -0.2 69
IV.LRP.EHN. 2019-07-09T04:12:05.63 0.1 undecidable manual P 110 71.0733 50 0.04 90
IV.PTQR.HHZ. 2019-07-09T04:12:03.07 0.1 undecidable manual P 71 54.2013 50 0.07 92
IV.GIUL.HHZ. 2019-07-09T04:12:02.70 0.1 undecidable manual P 131 52.0035 50 0.04 93
IV.SRES.HHE. 2019-07-09T04:12:02.26 1.0 undecidable manual P 332 46.9197 50 0.39 22
IV.FIAM.HHE. 2019-07-09T04:12:02.45 0.1 undecidable manual P 32 52.8027 50 -0.32 87
IV.GUAR.HNN. 2019-07-09T04:12:01.45 0.6 undecidable manual P 100 44.8218 50 -0.09 46
IV.LATB.EHZ. 2019-07-09T04:12:01.17 0.1 undecidable manual P 160 43.8228 50 -0.22 91
IT.MMP1.HGE. 2019-07-09T04:12:01.38 0.1 undecidable manual P 357 42.7239 50 0.15 92
IV.LAV9.HHE. 2019-07-09T04:12:01.49 0.6 undecidable manual S 198 21.6672 115 0.05 49
IV.SAMA.EHE. 2019-07-09T04:12:00.00 0.6 undecidable manual S 239 17.9709 120 -0.29 47
IV.CERT.HHZ. 2019-07-09T04:12:00.44 0.3 undecidable manual S 61 19.2696 118 -0.24 71
IT.CSO1.HGZ. 2019-07-09T04:12:00.05 0.3 undecidable manual P 44 36.6411 50 -0.23 69
IV.MTCE.HHZ. 2019-07-09T04:11:59.97 0.3 undecidable manual S 350 17.871 120 -0.28 70
IV.RCAV.EHZ. 2019-07-09T04:11:59.22 0.3 undecidable manual S 98 13.875 126 0.11 73
IV.VIVA.HHZ. 2019-07-09T04:11:59.03 0.3 undecidable manual S 183 12.6762 129 0.26 71
IV.MA9.HHN. 2019-07-09T04:11:58.96 0.3 undecidable manual S 223 14.3745 125 -0.29 71
IV.RDP.HHZ. 2019-07-09T04:11:58.93 0.3 undecidable manual S 206 12.876 129 0.12 73
IV.RMP.HHZ. 2019-07-09T04:11:57.44 0.3 undecidable manual S 227 8.5803 140 -0.32 71
IV.LAV9.HHE. 2019-07-09T04:11:57.48 1.0 undecidable manual P 198 21.6672 115 -0.44 22
IV.MTCE.HHZ. 2019-07-09T04:11:57.20 0.1 positive manual P 350 17.871 120 -0.04 99
IV.SAMA.EHE. 2019-07-09T04:11:57.43 0.1 undecidable manual P 239 17.9709 120 0.17 96
IV.CERT.HHZ. 2019-07-09T04:11:57.60 0.1 negative manual P 61 19.2696 118 0.12 97
IV.VIVA.HHZ. 2019-07-09T04:11:56.42 0.1 undecidable manual P 183 12.6762 129 0.04 99
IV.MA9.HHN. 2019-07-09T04:11:56.42 1.0 undecidable manual P 223 14.3745 125 -0.23 24
IV.RDP.HHZ. 2019-07-09T04:11:56.75 0.1 undecidable manual P 206 12.876 129 0.35 93
IV.RCAV.EHZ. 2019-07-09T04:11:56.84 0.1 undecidable manual P 98 13.875 126 0.26 95
IV.RMP.HHZ. 2019-07-09T04:11:55.84 0.1 undecidable manual P 227 8.5803 140 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RMP.HHN. ML:2.5 0.004165 0.18 AML other m 2019-07-09T04:11:57.53
IV.RMP.HHE. ML:2.4 0.0035499999999999998 0.32 AML other m 2019-07-09T04:11:57.55
IV.RDP.HHN. ML:2.4 0.002845 0.5 AML other m 2019-07-09T04:11:59.31
IV.RDP.HHE. ML:2.3 0.0019899999999999996 0.38 AML other m 2019-07-09T04:12:00.03
IV.MTCE.HHN. ML:1.9 0.0006374999999999999 0.36 AML other m 2019-07-09T04:12:00.36
IV.MTCE.HHE. ML:1.8 0.0005250000000000001 0.3 AML other m 2019-07-09T04:12:00.50
IV.CERT.HHN. ML:1.7 0.00036449999999999997 0.64 AML other m 2019-07-09T04:12:01.38
IV.RCAV.EHE. ML:1.5 0.000307 0.88 AML other m 2019-07-09T04:12:01.11
IV.CERT.HHE. ML:1.8 0.00046550000000000004 0.76 AML other m 2019-07-09T04:12:01.89
IV.RCAV.EHN. ML:1.7 0.000474 0.6 AML other m 2019-07-09T04:12:02.58
IV.VIVA.HHE. ML:2.3 0.0022400000000000002 0.24 AML other m 2019-07-09T04:12:03.60
IV.VIVA.HHN. ML:2.3 0.00235 0.28 AML other m 2019-07-09T04:12:04.52
IV.LATB.EHE. ML:1.1 0.000034750000000000004 0.46 AML other m 2019-07-09T04:12:08.42
IV.LATB.EHN. ML:1.1 0.00003345 1.34 AML other m 2019-07-09T04:12:08.71
IV.GIUL.HHE. ML:1.3 0.0000463 0.56 AML other m 2019-07-09T04:12:11.53
IV.GIUL.HHN. ML:1.3 0.0000455 0.58 AML other m 2019-07-09T04:12:11.54
IV.GAVE.EHE. ML:1.7 0.00005304821 0.1984 AML other m 2019-07-09T04:12:24.68
IV.GAVE.EHN. ML:1.8 0.00006346088 0.2208 AML other m 2019-07-09T04:12:23.53
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