Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 08-07-2019 and time 03:58:33 (UTC) in region 3 km NE Colonna (RM)

A magnitude ML 1.9 earthquake occured in region: 3 km NE Colonna (RM), on

  • 08-07-2019 03:58:33 (UTC)
  • 08-07-2019 05:58:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8600, 12.7700 at 11 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
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 7 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
San Gregorio da Sassola RM 11 1619 124948
Casape RM 11 744 125692
Grottaferrata RM 12 20327 146019
Tivoli RM 12 56533 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
Capranica Prenestina RM 15 351 281006
Ciampino RM 15 38412 319418
Castel Madama RM 15 7399 326817
Valmontone RM 15 15959 342776
Lariano RM 16 13432 356208
Castel Gandolfo RM 16 8997 365205
Guidonia Montecelio RM 16 88673 453878
Nemi RM 16 1943 455821
Pisoniano RM 17 770 456591
Albano Laziale RM 17 41715 498306
Genazzano RM 17 6036 504342
Ariccia RM 18 19407 523749
San Polo dei Cavalieri RM 18 2992 526741
San Vito Romano RM 18 3273 530014
Artena RM 18 14276 544290
Genzano di Roma RM 18 23970 568260
Ciciliano RM 18 1336 569596
Marcellina RM 19 7280 576876
Velletri RM 19 53303 630179
Fonte Nuova RM 20 32562 662741
Sambuci RM 20 925 663666
Sant'Angelo Romano RM 20 5018 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)
19 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 N of Latina (125985 inhabitants)
45 Km E of Fiumicino (78395 inhabitants)
47 Km N of Anzio (54211 inhabitants)
75 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 1.9 2019-07-08
03:58:33		 41.8605 12.7695 11 2019-11-13
14:30:54		 Bollettino Sismico Italiano INGV 70429411
Reviewed
Rev100 		ML 2.0 2019-07-08
03:58:33		 41.8668 12.7717 11 2019-07-08
04:03:30		 Sala Sismica INGV-Roma 70354211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-08 03:58:33 ± 0.04
Latitude 41.8605 ± 0.0018
Longitude 12.7695 ± 0.0036
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 70429411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 262
Semi-minor axis of confidence ellipse (meter) 230
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 141
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) 67
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) 0.07015
Epicentral distance of station farthest from the epicenter (degree) 0.83637
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:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations 21
Type of magnitude ML
Reference to an origin 70429411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-07-10 07:57:45

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 22
Type of magnitude ML
Reference to an origin 70354211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-08 04:03:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2019-07-08T03:59:01.64 0.6 undecidable manual S 6 92.8404 50 0.47 40
IV.POFI.HNE. 2019-07-08T03:58:58.02 0.6 undecidable manual S 101 79.5648 50 0.39 42
IV.ARRO.EHZ. 2019-07-08T03:58:58.12 0.3 undecidable manual S 360 79.7646 50 0.45 61
MN.AQU.HNN. 2019-07-08T03:58:56.55 1.0 undecidable manual S 43 75.6687 50 -0.05 22
IV.BARO.HNZ. 2019-07-08T03:58:56.05 1.0 undecidable manual S 306 73.1712 50 0.14 22
IV.VVLD.HHZ. 2019-07-08T03:58:54.99 1.0 undecidable manual S 89 70.5738 50 -0.23 22
IV.PTQR.HHZ. 2019-07-08T03:58:51.13 0.3 undecidable manual S 71 55.1004 50 0.04 70
IV.FIAM.HHZ. 2019-07-08T03:58:50.71 0.6 undecidable manual S 32 53.502 50 0.03 47
IV.GAVE.EHZ. 2019-07-08T03:58:49.37 0.1 undecidable manual P 6 92.8404 50 -0.24 84
IV.T0110.HHZ. 2019-07-08T03:58:49.45 0.3 undecidable manual P 63 92.4408 50 -0.11 64
IV.GUAR.HNN. 2019-07-08T03:58:48.51 0.6 undecidable manual S 99 45.4212 50 -0.02 48
IV.SRES.HHN. 2019-07-08T03:58:48.79 0.6 undecidable manual S 333 46.9197 50 -0.13 47
IV.POFI.HNE. 2019-07-08T03:58:47.43 0.1 undecidable manual P 101 79.5648 50 -0.14 88
IV.LATB.EHZ. 2019-07-08T03:58:47.73 0.3 undecidable manual S 158 43.7229 50 -0.33 67
IV.ARRO.EHZ. 2019-07-08T03:58:47.65 0.1 undecidable manual P 360 79.7646 50 0.06 89
IV.VVLD.HHZ. 2019-07-08T03:58:46.00 0.1 negative manual P 89 70.5738 50 -0.18 88
IV.BARO.HNZ. 2019-07-08T03:58:46.65 0.3 undecidable manual P 306 73.1712 50 0.07 67
MN.AQU.HNN. 2019-07-08T03:58:46.88 1.0 undecidable manual P 43 75.6687 50 -0.09 22
IV.PTQR.HHZ. 2019-07-08T03:58:43.95 0.1 positive manual P 71 55.1004 50 0.16 91
IV.GIUL.HHZ. 2019-07-08T03:58:43.44 0.1 undecidable manual P 130 52.3032 50 0.07 93
IV.FIAM.HHZ. 2019-07-08T03:58:43.51 0.1 undecidable manual P 32 53.502 50 -0.04 94
IV.LAV9.HNZ. 2019-07-08T03:58:42.09 0.3 undecidable manual S 196 21.0678 117 0.08 74
IV.SRES.HHN. 2019-07-08T03:58:42.64 0.6 undecidable manual P 333 46.9197 50 0.1 47
IV.GUAR.HNN. 2019-07-08T03:58:42.13 0.1 undecidable manual P 99 45.4212 50 -0.18 92
IV.LATB.EHZ. 2019-07-08T03:58:41.87 0.1 negative manual P 158 43.7229 50 -0.17 93
IV.CERT.HHZ. 2019-07-08T03:58:41.33 0.3 undecidable manual S 61 20.0688 118 -0.37 70
IV.SAMA.HHZ. 2019-07-08T03:58:40.41 0.3 undecidable manual S 239 17.1717 122 -0.39 70
IV.RCAV.EHZ. 2019-07-08T03:58:40.15 0.3 undecidable manual S 96 14.5743 126 0.08 75
IV.MTCE.HHZ. 2019-07-08T03:58:40.86 0.3 undecidable manual S 353 18.1707 120 -0.25 72
IV.MA9.HHN. 2019-07-08T03:58:39.72 0.3 undecidable manual S 222 13.5753 128 -0.07 75
IV.RDP.HHZ. 2019-07-08T03:58:39.63 0.3 undecidable manual S 204 12.1767 131 0.23 73
IV.VIVA.HHN. 2019-07-08T03:58:39.72 0.3 undecidable manual S 180 12.2766 131 0.29 72
IV.MTCE.HHZ. 2019-07-08T03:58:38.07 0.1 positive manual P 353 18.1707 120 0.04 100
IV.CERT.HHZ. 2019-07-08T03:58:38.40 0.1 negative manual P 61 20.0688 118 0.03 100
IV.LAV9.HNZ. 2019-07-08T03:58:38.40 0.3 undecidable manual P 196 21.0678 117 -0.15 73
IV.VIVA.HHN. 2019-07-08T03:58:37.24 0.1 undecidable manual P 180 12.2766 131 0.18 98
IV.MA9.HHN. 2019-07-08T03:58:37.25 0.3 undecidable manual P 222 13.5753 128 -0.02 76
IV.RDP.HHZ. 2019-07-08T03:58:37.42 0.1 undecidable manual P 204 12.1767 131 0.38 94
IV.SAMA.HHZ. 2019-07-08T03:58:37.81 0.1 undecidable manual P 239 17.1717 122 -0.04 100
IV.RCAV.EHZ. 2019-07-08T03:58:37.59 0.1 negative manual P 96 14.5743 126 0.16 98
IV.RMP.HHZ. 2019-07-08T03:58:37.96 0.3 undecidable manual S 225 7.7811 144 -0.42 70
IV.RMP.HHZ. 2019-07-08T03:58:36.66 0.1 negative manual P 225 7.7811 144 0.21 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RMP.HHN. ML:2.7 0.00658 0.18 AML other m 2019-07-08T03:58:38.46
IV.RMP.HHE. ML:2.6 0.005144999999999999 0.68 AML other m 2019-07-08T03:58:38.40
IV.RDP.HHN. ML:2.6 0.004 0.4 AML other m 2019-07-08T03:58:40.14
IV.RDP.HHE. ML:2.5 0.00323 0.62 AML other m 2019-07-08T03:58:40.80
IV.MTCE.HHN. ML:2.1 0.001145 0.42 AML other m 2019-07-08T03:58:41.27
IV.MTCE.HHE. ML:2.1 0.0011200000000000001 0.34 AML other m 2019-07-08T03:58:41.38
IV.CERT.HHN. ML:2.0 0.0008089999999999999 1.34 AML other m 2019-07-08T03:58:41.17
IV.RCAV.EHE. ML:1.9 0.000756 1.58 AML other m 2019-07-08T03:58:41.87
IV.RCAV.EHN. ML:1.9 0.000762 1.54 AML other m 2019-07-08T03:58:41.16
IV.CERT.HHE. ML:2.1 0.0010135 1.24 AML other m 2019-07-08T03:58:43.73
IV.LATB.EHN. ML:1.1 0.0000371 0.32 AML other m 2019-07-08T03:58:48.70
IV.LATB.EHE. ML:1.3 0.0000635 0.46 AML other m 2019-07-08T03:58:48.97
IV.FIAM.HHN. ML:1.5 0.00007055000000000001 0.5 AML other m 2019-07-08T03:58:52.02
IV.FIAM.HHE. ML:1.4 0.00006385000000000001 0.52 AML other m 2019-07-08T03:58:58.34
IV.ARRO.EHN. ML:1.9 0.00009800000000000001 0.62 AML other m 2019-07-08T03:59:00.53
IV.VVLD.HHN. ML:1.7 0.00007525 0.54 AML other m 2019-07-08T03:59:00.61
IV.ARRO.EHE. ML:1.8 0.00007755 0.62 AML other m 2019-07-08T03:59:03.49
IV.VVLD.HHE. ML:1.5 0.000052199999999999995 1.5 AML other m 2019-07-08T03:59:04.09
IV.GAVE.EHE. ML:1.9 0.00009115 0.76 AML other m 2019-07-08T03:59:05.06
IV.GAVE.EHN. ML:2.0 0.00011999999999999999 0.26 AML other m 2019-07-08T03:59:05.73
IV.FIAM.HNN. ML:1.8 0.00015324785 0.7104 AML other m 2019-07-08T03:58:52.02
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
Waveforms Seismic signals in miniseed + resp format Download