Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 11-07-2019 and time 06:28:22 (UTC) in region 3 km NE Colonna (RM)

A magnitude ML 1.3 earthquake occured in region: 3 km NE Colonna (RM), on

  • 11-07-2019 06:28:22 (UTC)
  • 11-07-2019 08:28:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8570, 12.7680 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
San Cesareo RM 5 15153 19440
Gallicano nel Lazio RM 5 6334 25774
Zagarolo RM 6 17843 43617
Monte Compatri RM 6 11978 55595
Monte Porzio Catone RM 6 8693 64288
Rocca Priora RM 7 11962 76250
Frascati RM 9 22087 98337
Palestrina RM 10 21672 120009
Castel San Pietro Romano RM 11 902 120911
Poli RM 11 2418 123329
Grottaferrata RM 11 20327 143656
San Gregorio da Sassola RM 11 1619 145275
Casape RM 11 744 146019
Rocca di Papa RM 12 17034 163053
Tivoli RM 12 56533 219586
Labico RM 13 6379 225965
Marino RM 13 43026 268991
Cave RM 14 11287 280278
Rocca di Cave RM 15 377 280655
Ciampino RM 15 38412 319067
Lariano RM 15 13432 332499
Valmontone RM 15 15959 348458
Capranica Prenestina RM 15 351 348809
Castel Gandolfo RM 16 8997 357806
Nemi RM 16 1943 359749
Castel Madama RM 16 7399 367148
Guidonia Montecelio RM 16 88673 455821
Albano Laziale RM 17 41715 497536
Pisoniano RM 17 770 498306
Ariccia RM 17 19407 517713
Genazzano RM 17 6036 523749
Genzano di Roma RM 18 23970 547719
Artena RM 18 14276 561995
San Vito Romano RM 18 3273 565268
San Polo dei Cavalieri RM 18 2992 568260
Ciciliano RM 19 1336 569596
Velletri RM 19 53303 622899
Marcellina RM 19 7280 630179
Fonte Nuova RM 20 32562 662741

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)
19 Km N of Velletri (53303 inhabitants)
24 Km E of Roma (2864731 inhabitants)
30 Km NE of Pomezia (62966 inhabitants)
31 Km NE of Aprilia (73446 inhabitants)
45 Km N of Latina (125985 inhabitants)
45 Km E of Fiumicino (78395 inhabitants)
47 Km N of Anzio (54211 inhabitants)
76 Km SW of L'Aquila (69753 inhabitants)
79 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 1.3 2019-07-11
06:28:22		 41.8567 12.7678 10 2019-11-13
14:30:54		 Bollettino Sismico Italiano INGV 70468791
Reviewed
Rev100 		ML 1.3 2019-07-11
06:28:22		 41.8612 12.7682 7 2019-07-11
06:39:13		 Sala Sismica INGV-Roma 70463561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-11 06:28:22 ± 0.1
Latitude 41.8567 ± 0.0036
Longitude 12.7678 ± 0.0060
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 70468791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 400
Semi-minor axis of confidence ellipse (meter) 362
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 303
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 12
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) 0.39031
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 70468791
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-12 12:43:40

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 70463561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-11 06:39:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VENL.HNZ. 2019-07-11T06:29:54.53 3.0 undecidable manual Sn -3.86 0
IV.QLNO.HHZ. 2019-07-11T06:29:53.73 3.0 undecidable manual Sn -1.34 0
IV.SPS2.HHZ. 2019-07-11T06:29:50.74 3.0 undecidable manual Sn -1.32 0
SI.ROSI.HHZ. 2019-07-11T06:29:49.55 3.0 positive manual Pg 19.110001 0
GU.RORO.HHZ. 2019-07-11T06:29:43.86 3.0 undecidable manual Sn -9.99 0
IV.PESA.HHZ. 2019-07-11T06:29:29.12 3.0 undecidable manual Sn 5.01 0
IV.FOSV.EHZ. 2019-07-11T06:29:26.03 3.0 undecidable manual Sg 17.459999 0
IX.MNT3.HHZ.02 2019-07-11T06:29:21.61 3.0 undecidable manual Sg 7.11 0
IV.GMB.BHZ. 2019-07-11T06:29:16.40 3.0 negative manual Pg 4.72 0
IV.GRI.EHZ. 2019-07-11T06:29:16.39 3.0 negative manual Pg 5.9 0
MN.TRI.HHZ. 2019-07-11T06:29:16.11 3.0 positive manual Pn -0.18 0
IV.NDIM.HNZ. 2019-07-11T06:29:15.55 3.0 negative manual Pg 12.24 0
IV.ECTS.EHZ. 2019-07-11T06:29:15.27 3.0 undecidable manual Pg 5.43 0
IV.CDRU.HHZ. 2019-07-11T06:29:14.00 3.0 undecidable manual Sn -7.99 0
IV.PIPA.HHZ. 2019-07-11T06:29:12.83 3.0 positive manual Pg 3.52 0
IV.PAOL.HHZ. 2019-07-11T06:29:08.21 3.0 undecidable manual Sg 2.5 0
IV.CSNT.HHZ. 2019-07-11T06:29:07.86 3.0 undecidable manual Sn -3.9 0
IV.CAVE.HHZ. 2019-07-11T06:29:04.96 3.0 negative manual Pn 2.14 0
IV.RIBO.EHZ.01 2019-07-11T06:29:03.41 3.0 undecidable manual Sn 2.72 0
TV.SF01.EHZ. 2019-07-11T06:29:01.16 3.0 undecidable manual Sg 6.19 0
IV.APEC.HHZ. 2019-07-11T06:28:50.53 3.0 negative manual Pg 6.06 0
IX.MNT3.HHZ.02 2019-07-11T06:28:43.05 3.0 undecidable manual Pn -2.02 0
IV.LATB.EHZ. 2019-07-11T06:28:36.20 0.6 undecidable manual S 158 43.3233 50 -0.12 47
IV.MOMA.HHZ. 2019-07-11T06:28:34.12 3.0 undecidable manual P -0.62 0
IT.VNF1.HGZ. 2019-07-11T06:28:32.80 3.0 positive manual Pn -1.94 0
IV.LATB.EHZ. 2019-07-11T06:28:30.21 0.6 undecidable manual P 158 43.3233 50 -0.11 47
IV.CERT.HHZ. 2019-07-11T06:28:29.83 0.3 undecidable manual S 60 20.4684 117 -0.25 71
IV.MTCE.HHZ. 2019-07-11T06:28:29.58 0.3 undecidable manual S 353 18.5703 119 0.08 74
IV.RCAV.EHZ. 2019-07-11T06:28:28.38 0.3 undecidable manual S 94 14.6742 125 0.01 76
IV.RDP.HHE. 2019-07-11T06:28:27.78 0.3 undecidable manual S 204 11.6772 132 0.22 73
IV.MTCE.HHZ. 2019-07-11T06:28:26.44 0.1 undecidable manual P 353 18.5703 119 0.05 99
IV.CERT.HHZ. 2019-07-11T06:28:26.69 0.1 undecidable manual P 60 20.4684 117 -0.03 100
IV.RMP.HHZ. 2019-07-11T06:28:26.19 0.3 undecidable manual S 227 7.3815 144 -0.36 71
IV.RDP.HHE. 2019-07-11T06:28:25.47 0.3 undecidable manual P 204 11.6772 132 0.21 73
IV.RCAV.EHZ. 2019-07-11T06:28:25.98 0.1 undecidable manual P 94 14.6742 125 0.25 96
IV.RMP.HHZ. 2019-07-11T06:28:24.57 0.1 undecidable manual P 227 7.3815 144 -0.11 100
IV.DGI.HHZ. 2019-07-11T06:28:23.32 3.0 undecidable manual P -9.99 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RMP.HHE. ML:1.7 0.0006580000000000001 0.76 AML other m 2019-07-11T06:28:26.51
IV.RMP.HHN. ML:1.7 0.000716 1.28 AML other m 2019-07-11T06:28:27.17
IV.RCAV.EHE. ML:1.1 0.0001295 0.6 AML other m 2019-07-11T06:28:29.44
IV.CERT.HHN. ML:1.2 0.0001075 0.84 AML other m 2019-07-11T06:28:31.16
IV.RCAV.EHN. ML:1.1 0.0001175 0.4 AML other m 2019-07-11T06:28:31.57
IV.CERT.HHE. ML:1.3 0.00013000000000000002 0.46 AML other m 2019-07-11T06:28:33.97
IV.MTCE.HHN. ML:1.1 0.000102256855 0.32 AML other m 2019-07-11T06:28:30.46
IV.MTCE.HHE. ML:1.3 0.00014880965000000002 0.4224 AML other m 2019-07-11T06:28:33.16
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