Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 09-07-2019 and time 02:52:00 (UTC) in region 3 km NE Colonna (RM)

A magnitude ML 1.4 earthquake occured in region: 3 km NE Colonna (RM), on

  • 09-07-2019 02:52:00 (UTC)
  • 09-07-2019 04:52:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8640, 12.7700 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 4 4287 4287
Gallicano nel Lazio RM 5 6334 10621
San Cesareo RM 5 15153 25774
Zagarolo RM 6 17843 43617
Monte Compatri RM 7 11978 55595
Monte Porzio Catone RM 7 8693 64288
Rocca Priora RM 8 11962 76250
Frascati RM 10 22087 98337
Palestrina RM 10 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
Tivoli RM 12 56533 182225
Grottaferrata RM 12 20327 202552
Rocca di Papa RM 12 17034 219586
Labico RM 13 6379 225965
Marino RM 14 43026 268991
Cave RM 14 11287 280278
Rocca di Cave RM 15 377 280655
Castel Madama RM 15 7399 288054
Capranica Prenestina RM 15 351 288405
Ciampino RM 15 38412 326817
Valmontone RM 16 15959 342776
Guidonia Montecelio RM 16 88673 431449
Lariano RM 16 13432 444881
Castel Gandolfo RM 16 8997 453878
Nemi RM 17 1943 455821
Pisoniano RM 17 770 456591
Genazzano RM 17 6036 462627
Albano Laziale RM 17 41715 504342
San Polo dei Cavalieri RM 18 2992 507334
Ariccia RM 18 19407 526741
San Vito Romano RM 18 3273 530014
Ciciliano RM 18 1336 531350
Marcellina RM 18 7280 538630
Artena RM 18 14276 552906
Genzano di Roma RM 19 23970 576876
Fonte Nuova RM 19 32562 609438
Velletri RM 20 53303 662741
Sambuci RM 20 925 663666
Sant'Angelo Romano RM 20 5018 668684
Vicovaro RM 20 4019 672703
Cerreto Laziale RM 20 1118 673821

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)
32 Km NE of Aprilia (73446 inhabitants)
45 Km E of Fiumicino (78395 inhabitants)
45 Km N of Latina (125985 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 1.4 2019-07-09
02:52:00		 41.8638 12.7697 10 2019-11-13
14:30:54		 Bollettino Sismico Italiano INGV 70493181
Reviewed
Rev100 		ML 1.6 2019-07-09
02:52:00		 41.8673 12.7647 10 2019-07-09
03:00:12		 Sala Sismica INGV-Roma 70389601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-09 02:52:00 ± 0.04
Latitude 41.8638 ± 0.0027
Longitude 12.7697 ± 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 70493181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 300
Semi-minor axis of confidence ellipse (meter) 259
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 275
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
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) 0.07285
Epicentral distance of station farthest from the epicenter (degree) 0.60614
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 18
Type of magnitude ML
Reference to an origin 70493181
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-12 07:45:14

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 70389601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-09 03:00:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.HHZ. 2019-07-09T02:52:17.12 0.6 undecidable manual S 130 52.503 50 0.18 45
IV.PTQR.HHZ. 2019-07-09T02:52:17.45 0.6 undecidable manual S 71 54.9006 50 -0.13 45
IV.FIAM.HHZ. 2019-07-09T02:52:17.11 0.3 undecidable manual S 32 53.2023 50 0 70
IV.SRES.HHN. 2019-07-09T02:52:15.74 1.0 undecidable manual S 333 46.62 50 0.39 22
IV.LATB.EHZ. 2019-07-09T02:52:14.51 0.3 undecidable manual S 159 44.0226 50 -0.16 69
IT.MMP1.HGE. 2019-07-09T02:52:14.71 0.6 undecidable manual S 358 42.8238 50 0.37 44
IV.TOLF.HHN. 2019-07-09T02:52:12.03 0.6 undecidable manual P 290 67.2771 50 -0.12 44
IT.CSO1.HGZ. 2019-07-09T02:52:12.88 0.6 undecidable manual S 45 37.1295 50 0.05 47
IV.PTQR.HHZ. 2019-07-09T02:52:10.18 0.1 undecidable manual P 71 54.9006 50 -0.08 91
IV.FIAM.HHZ. 2019-07-09T02:52:09.93 0.1 undecidable manual P 32 53.2023 50 -0.06 92
IV.SRES.HHN. 2019-07-09T02:52:09.15 0.3 undecidable manual P 333 46.62 50 0.18 68
IV.GIUL.HHZ. 2019-07-09T02:52:09.58 0.1 undecidable manual P 130 52.503 50 -0.31 87
IV.LATB.EHZ. 2019-07-09T02:52:08.23 0.1 undecidable manual P 159 44.0226 50 -0.35 88
IT.MMP1.HGE. 2019-07-09T02:52:08.68 0.1 undecidable manual P 358 42.8238 50 0.29 89
IV.LAV9.HHZ. 2019-07-09T02:52:08.64 0.3 undecidable manual S 196 21.4674 115 0.15 72
IV.MTCE.HHZ. 2019-07-09T02:52:07.16 0.3 undecidable manual S 353 17.7711 120 -0.2 71
IT.CSO1.HGZ. 2019-07-09T02:52:07.58 0.3 undecidable manual P 45 37.1295 50 0.06 71
IV.CERT.HHZ. 2019-07-09T02:52:07.71 0.3 undecidable manual S 62 19.869 117 -0.3 70
IV.SAMA.EHE. 2019-07-09T02:52:06.95 0.3 undecidable manual S 238 17.3715 120 -0.28 70
IV.VIVA.HHZ. 2019-07-09T02:52:06.19 0.3 undecidable manual S 180 12.5763 129 0.32 70
IV.RCAV.EHZ. 2019-07-09T02:52:06.52 0.3 undecidable manual S 97 14.6742 125 0.08 73
IV.MA9.HHE. 2019-07-09T02:52:05.97 0.3 undecidable manual S 221 13.875 126 -0.25 71
IV.LAV9.HHZ. 2019-07-09T02:52:05.35 0.3 undecidable manual P 196 21.4674 115 0.34 69
IV.RDP.HHZ. 2019-07-09T02:52:05.92 0.3 undecidable manual S 203 12.4764 129 0.08 74
IV.SAMA.EHE. 2019-07-09T02:52:04.15 0.1 undecidable manual P 238 17.3715 120 -0.13 97
IV.MTCE.HHZ. 2019-07-09T02:52:04.34 0.1 positive manual P 353 17.7711 120 -0.02 99
IV.RMP.HHE. 2019-07-09T02:52:04.61 0.3 undecidable manual S 224 8.0808 142 -0.15 73
IV.CERT.HHZ. 2019-07-09T02:52:04.68 0.1 undecidable manual P 62 19.869 117 -0.05 98
IV.RCAV.EHZ. 2019-07-09T02:52:03.98 0.1 undecidable manual P 97 14.6742 125 0.16 96
IV.MA9.HHE. 2019-07-09T02:52:03.41 0.3 undecidable manual P 221 13.875 126 -0.29 70
IV.RDP.HHZ. 2019-07-09T02:52:03.69 0.1 undecidable manual P 203 12.4764 129 0.21 96
IV.VIVA.HHZ. 2019-07-09T02:52:03.86 0.1 undecidable manual P 180 12.5763 129 0.36 93
IV.RMP.HHE. 2019-07-09T02:52:02.89 0.1 undecidable manual P 224 8.0808 142 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VIVA.HHN. ML:2.0 0.001016 0.32 AML other m 2019-07-09T02:52:06.90
IV.RCAV.EHE. ML:1.3 0.0001875 0.82 AML other m 2019-07-09T02:52:07.27
IV.RCAV.EHN. ML:1.3 0.000211 0.44 AML other m 2019-07-09T02:52:07.50
IV.RDP.HHN. ML:1.9 0.0008380000000000001 0.6 AML other m 2019-07-09T02:52:07.63
IV.VIVA.HHE. ML:2.0 0.0011284999999999997 0.34 AML other m 2019-07-09T02:52:07.83
IV.MTCE.HHE. ML:1.3 0.000161 0.26 AML other m 2019-07-09T02:52:07.82
IV.MTCE.HHN. ML:1.4 0.0001885 0.84 AML other m 2019-07-09T02:52:08.52
IV.LAV9.HNN. ML:1.7 0.00033504270000000004 0.2608 AML other m 2019-07-09T02:52:09.27
IV.LAV9.HHN. ML:1.6 0.00028573104999999997 1.5008 AML other m 2019-07-09T02:52:09.14
IV.LAV9.HHE. ML:1.9 0.000522 0.4 AML other m 2019-07-09T02:52:09.61
IV.LAV9.HNE. ML:1.9 0.0005090751 0.3904 AML other m 2019-07-09T02:52:09.41
IV.LATB.EHN. ML:0.9 0.000023090025 1.6416 AML other m 2019-07-09T02:52:14.07
IV.FIAM.HHN. ML:0.8 0.000016050284999999997 0.0816 AML other m 2019-07-09T02:52:17.54
IV.FIAM.HHE. ML:0.8 0.0000156 0.72 AML other m 2019-07-09T02:52:19.51
IV.RDP.HHE. ML:1.9 0.0009130540000000001 0.3792 AML other m 2019-07-09T02:52:07.20
IV.LATB.EHE. ML:0.9 0.0000231124115 2.0192 AML other m 2019-07-09T02:52:15.19
IV.GIUL.HHN. ML:0.9 0.000018777494999999997 0.2992 AML other m 2019-07-09T02:52:19.00
IV.GIUL.HHE. ML:1.0 0.000024448165000000002 0.24 AML other m 2019-07-09T02:52:19.63
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