Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 23-06-2019 and time 21:06:15 (UTC) in region 3 km N Colonna (RM)

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

  • 23-06-2019 21:06:15 (UTC)
  • 23-06-2019 23:06:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.8660, 12.7560 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 6 6334 10621
San Cesareo RM 6 15153 25774
Monte Porzio Catone RM 6 8693 34467
Monte Compatri RM 7 11978 46445
Zagarolo RM 7 17843 64288
Rocca Priora RM 8 11962 76250
Frascati RM 9 22087 98337
Grottaferrata RM 11 20327 118664
San Gregorio da Sassola RM 11 1619 120283
Tivoli RM 12 56533 176816
Palestrina RM 12 21672 198488
Poli RM 12 2418 200906
Casape RM 12 744 201650
Castel San Pietro Romano RM 12 902 202552
Rocca di Papa RM 12 17034 219586
Marino RM 13 43026 262612
Labico RM 14 6379 268991
Ciampino RM 15 38412 307403
Guidonia Montecelio RM 15 88673 396076
Castel Madama RM 15 7399 403475
Cave RM 16 11287 414762
Castel Gandolfo RM 16 8997 423759
Rocca di Cave RM 16 377 424136
Capranica Prenestina RM 16 351 424487
Nemi RM 17 1943 426430
Lariano RM 17 13432 439862
Valmontone RM 17 15959 455821
Albano Laziale RM 17 41715 497536
Pisoniano RM 18 770 498306
Ariccia RM 18 19407 517713
San Polo dei Cavalieri RM 18 2992 520705
Marcellina RM 18 7280 527985
Genazzano RM 18 6036 534021
Fonte Nuova RM 18 32562 566583
Genzano di Roma RM 18 23970 590553
Ciciliano RM 19 1336 591889
San Vito Romano RM 19 3273 595162
Sant'Angelo Romano RM 19 5018 600180
Artena RM 19 14276 614456
Vicovaro RM 20 4019 618475
Velletri RM 20 53303 671778

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SW of Tivoli (56533 inhabitants)
15 Km S of Guidonia Montecelio (88673 inhabitants)
20 Km N of Velletri (53303 inhabitants)
23 Km E of Roma (2864731 inhabitants)
30 Km NE of Pomezia (62966 inhabitants)
32 Km N of Aprilia (73446 inhabitants)
44 Km E of Fiumicino (78395 inhabitants)
46 Km N of Latina (125985 inhabitants)
48 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)
83 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 2019-06-23
21:06:15		 41.8665 12.756 10 2019-11-13
14:30:52		 Bollettino Sismico Italiano INGV 69924631
Reviewed
Rev100 		ML 1.4 2019-06-23
21:06:15		 41.879 12.7713 10 2019-06-23
21:14:23		 Sala Sismica INGV-Roma 69839021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-06-23 21:06:15 ± 0.04
Latitude 41.8665 ± 0.0018
Longitude 12.7560 ± 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 69924631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 290
Semi-minor axis of confidence ellipse (meter) 193
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 280
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.06835
Epicentral distance of station farthest from the epicenter (degree) 0.50362
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 69839021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-06-23 21:14:23

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 69924631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-06-26 07:57:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTQR.HHZ. 2019-06-23T21:06:33.20 0.3 undecidable manual S 72 55.8996 50 0.22 68
IV.FIAM.HNN. 2019-06-23T21:06:32.47 0.3 undecidable manual S 34 53.6019 50 0.11 69
IV.GIUL.HHZ. 2019-06-23T21:06:32.65 1.0 undecidable manual S 129 53.6019 50 0.28 22
IV.GUAR.HHN. 2019-06-23T21:06:30.51 0.3 undecidable manual S 100 46.7199 50 -0.01 72
IT.MMP1.HGE. 2019-06-23T21:06:29.29 0.3 undecidable manual S 359 42.4242 50 -0.1 71
IV.LATB.EHZ. 2019-06-23T21:06:29.97 0.3 undecidable manual S 157 44.7219 50 -0.03 72
IV.PTQR.HHZ. 2019-06-23T21:06:25.60 0.1 undecidable manual P 72 55.8996 50 0.04 93
IV.GIUL.HHZ. 2019-06-23T21:06:25.10 0.1 undecidable manual P 129 53.6019 50 -0.1 93
IV.FIAM.HNN. 2019-06-23T21:06:25.30 1.0 undecidable manual P 34 53.6019 50 0.1 23
IT.MMP1.HGE. 2019-06-23T21:06:23.59 1.0 undecidable manual P 359 42.4242 50 0.1 24
IV.CERT.HHZ. 2019-06-23T21:06:23.25 0.3 undecidable manual S 64 20.7681 116 -0.21 72
IV.LATB.EHZ. 2019-06-23T21:06:23.66 0.1 undecidable manual P 157 44.7219 50 -0.18 93
IV.GUAR.HHN. 2019-06-23T21:06:23.89 1.0 undecidable manual P 100 46.7199 50 -0.25 23
IV.MTCE.HHZ. 2019-06-23T21:06:22.45 0.3 undecidable manual S 356 17.3715 121 0.03 75
IV.MA9.HHE. 2019-06-23T21:06:21.17 0.3 undecidable manual S 217 13.3755 127 -0.1 75
IV.RCAV.EHE. 2019-06-23T21:06:21.94 0.3 undecidable manual S 98 15.7731 123 -0.02 76
IV.VIVA.HHE. 2019-06-23T21:06:21.44 0.3 undecidable manual S 175 12.9759 128 0.28 72
IV.RDP.HHZ. 2019-06-23T21:06:21.35 1.0 undecidable manual S 198 12.3765 130 0.35 24
IV.CERT.HHZ. 2019-06-23T21:06:20.01 0.1 positive manual P 64 20.7681 116 -0.05 99
IV.RMP.HHZ. 2019-06-23T21:06:19.68 0.3 undecidable manual S 216 7.5813 144 -0.17 74
IV.MTCE.HHZ. 2019-06-23T21:06:19.53 0.1 undecidable manual P 356 17.3715 121 0.07 100
IV.RCAV.EHE. 2019-06-23T21:06:19.25 0.1 undecidable manual P 98 15.7731 123 0.06 100
IV.RMP.HHZ. 2019-06-23T21:06:18.13 0.1 positive manual P 216 7.5813 144 0.16 99
IV.MA9.HHE. 2019-06-23T21:06:18.64 0.3 undecidable manual P 217 13.3755 127 -0.16 74
IV.VIVA.HHE. 2019-06-23T21:06:18.45 0.3 undecidable manual P 175 12.9759 128 -0.28 72
IV.RDP.HHZ. 2019-06-23T21:06:18.88 0.1 undecidable manual P 198 12.3765 130 0.24 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERT.HHE. ML:1.2 0.0001225 0.7 AML other m 2019-06-23T21:06:27.36
IV.RMP.HHN. ML:1.8 0.000861 1.38 AML other m 2019-06-23T21:06:20.26
IV.MTCE.HHN. ML:1.0 0.0000828 0.42 AML other m 2019-06-23T21:06:22.77
IV.MTCE.HHE. ML:1.0 0.00008474999999999999 1.64 AML other m 2019-06-23T21:06:23.86
IV.RDP.HHN. ML:1.8 0.000657 0.36 AML other m 2019-06-23T21:06:23.64
IV.CERT.HHN. ML:1.2 0.0001005 1.38 AML other m 2019-06-23T21:06:24.91
IV.RDP.HHE. ML:1.5 0.0005805000000000001 1.44 AML other m 2019-06-23T21:06:25.80
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