Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 23-10-2019 and time 06:01:39 (Italy) in region 3 km E Artena (RM)

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

  • 23-10-2019 04:01:39 (UTC)
  • 23-10-2019 06:01:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7320, 12.9440 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
Artena RM 3 14276 14276
Colleferro RM 5 21595 35871
Valmontone RM 6 15959 51830
Rocca Massima LT 6 1136 52966
Labico RM 8 6379 59345
Segni RM 8 9159 68504
Lariano RM 9 13432 81936
Gavignano RM 10 1916 83852
Cave RM 10 11287 95139
Cori LT 10 11065 106204
Genazzano RM 12 6036 112240
Montelanico RM 12 2131 114371
Paliano FR 13 8281 122652
Palestrina RM 13 21672 144324
Rocca di Cave RM 13 377 144701
Castel San Pietro Romano RM 14 902 145603
Capranica Prenestina RM 15 351 145954
Velletri RM 15 53303 199257
Zagarolo RM 15 17843 217100
San Cesareo RM 16 15153 232253
Gorga RM 16 710 232963
Olevano Romano RM 16 6687 239650
Norma LT 16 3946 243596
Rocca Priora RM 17 11962 255558
San Vito Romano RM 17 3273 258831
Serrone FR 18 3099 261930
Anagni FR 18 21464 283394
Poli RM 18 2418 285812
Bellegra RM 18 2887 288699
Cisterna di Latina LT 18 36868 325567
Carpineto Romano RM 18 4524 330091
Sgurgola FR 18 2676 332767
Gallicano nel Lazio RM 19 6334 339101
Roiate RM 19 737 339838
Nemi RM 19 1943 341781
Monte Compatri RM 19 11978 353759
Colonna RM 20 4287 358046
Rocca di Papa RM 20 17034 375080
Pisoniano RM 20 770 375850

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Velletri (53303 inhabitants)
29 Km SE of Tivoli (56533 inhabitants)
29 Km NE of Aprilia (73446 inhabitants)
29 Km N of Latina (125985 inhabitants)
35 Km SE of Guidonia Montecelio (88673 inhabitants)
37 Km E of Pomezia (62966 inhabitants)
41 Km NE of Anzio (54211 inhabitants)
42 Km E of Roma (2864731 inhabitants)
59 Km E of Fiumicino (78395 inhabitants)
79 Km SW of L'Aquila (69753 inhabitants)
96 Km S of Terni (111501 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 2019-10-23
04:01:39		 41.7317 12.9445 10 2020-02-28
16:41:58		 Bollettino Sismico Italiano INGV 73406441
Reviewed
Rev100 		ML 1.5 2019-10-23
04:01:39		 41.7465 12.9508 11 2019-10-23
04:09:03		 Sala Sismica INGV-Roma 73403081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-23 04:01:39 ± 0.06
Latitude 41.7317 ± 0.0045
Longitude 12.9445 ± 0.0048
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 73406441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 450
Semi-minor axis of confidence ellipse (meter) 359
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 325
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
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) 0.11601
Epicentral distance of station farthest from the epicenter (degree) 0.52430
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 73406441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-23 08:48:48

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 73403081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-23 04:09:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LRP.EHZ. 2019-10-23T04:01:57.01 0.3 undecidable manual S 100 54.0015 50 0.42 64
IV.VVLD.HHZ. 2019-10-23T04:01:57.88 0.3 undecidable manual S 75 58.1973 50 0.17 67
IV.MTCE.HHZ. 2019-10-23T04:01:52.29 1.0 undecidable manual S 333 36.3414 50 0.41 22
IV.VVLD.HHZ. 2019-10-23T04:01:50.21 0.6 undecidable manual P 75 58.1973 50 0.22 44
IV.GUAR.HNN. 2019-10-23T04:01:50.31 0.6 undecidable manual S 77 31.2465 50 -0.2 47
IV.GIUL.HHZ. 2019-10-23T04:01:50.74 0.3 undecidable manual S 127 32.1456 50 0 73
IV.LRP.EHZ. 2019-10-23T04:01:49.38 0.1 undecidable manual P 100 54.0015 50 0.03 93
IV.SAMA.HHZ. 2019-10-23T04:01:49.91 1.0 undecidable manual S 281 29.6481 50 -0.18 24
IV.CERT.HHZ. 2019-10-23T04:01:48.15 0.3 undecidable manual S 7 24.3534 112 -0.41 68
IV.LATB.EHZ. 2019-10-23T04:01:48.82 0.3 undecidable manual S 177 26.4513 50 -0.4 68
IV.RMP.HHN. 2019-10-23T04:01:48.09 0.3 undecidable manual S 294 21.867 114 0.3 70
IV.RDP.HHZ. 2019-10-23T04:01:46.87 0.6 undecidable manual S 279 19.6692 117 -0.21 48
IV.MTCE.HHZ. 2019-10-23T04:01:46.45 0.1 undecidable manual P 333 36.3414 50 -0.18 93
IV.SAMA.HHZ. 2019-10-23T04:01:45.64 0.3 undecidable manual P 281 29.6481 50 0.05 72
IV.GIUL.HHZ. 2019-10-23T04:01:45.93 0.1 undecidable manual P 127 32.1456 50 -0.04 96
IV.LATB.EHZ. 2019-10-23T04:01:45.19 1.0 undecidable manual P 177 26.4513 50 0.1 24
IV.VIVA.HHZ. 2019-10-23T04:01:45.81 0.3 undecidable manual S 278 14.5743 124 0.25 71
IV.GUAR.HNN. 2019-10-23T04:01:45.79 0.3 undecidable manual P 77 31.2465 50 -0.05 72
IV.CERT.HHZ. 2019-10-23T04:01:44.59 0.1 undecidable manual P 7 24.3534 112 -0.12 96
IV.RCAV.EHZ. 2019-10-23T04:01:44.99 0.3 undecidable manual S 0 12.876 128 -0.08 74
IV.RMP.HHN. 2019-10-23T04:01:44.42 0.1 undecidable manual P 294 21.867 114 0.16 96
IV.RDP.HHZ. 2019-10-23T04:01:43.59 0.3 undecidable manual P 279 19.6692 117 -0.26 70
IV.RCAV.EHZ. 2019-10-23T04:01:42.93 0.3 undecidable manual P 0 12.876 128 0.23 72
IV.VIVA.HHZ. 2019-10-23T04:01:42.98 0.1 undecidable manual P 278 14.5743 124 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RCAV.EHN. ML:1.3 0.0001995 0.5 AML other m 2019-10-23T04:01:45.96
IV.RCAV.EHE. ML:1.3 0.0001995 0.32 AML other m 2019-10-23T04:01:45.59
IV.VIVA.HHE. ML:1.8 0.000607 0.48 AML other m 2019-10-23T04:01:47.45
IV.VIVA.HHN. ML:1.7 0.0005035 0.92 AML other m 2019-10-23T04:01:48.86
IV.GIUL.HHE. ML:1.2 0.0000694 0.5 AML other m 2019-10-23T04:01:51.45
IV.GIUL.HHN. ML:1.5 0.000131 0.24 AML other m 2019-10-23T04:01:51.50
IV.CERT.HHN. ML:0.8 0.00003510261 0.1408 AML other m 2019-10-23T04:01:50.76
IV.CERT.HHE. ML:1.0 0.000057576555000000004 0.3008 AML other m 2019-10-23T04:01:50.24
IV.LRP.EHE. ML:1.3 0.000049899449999999995 0.2432 AML other m 2019-10-23T04:01:58.17
IV.LRP.EHN. ML:0.8 0.000017411629999999996 0.1376 AML other m 2019-10-23T04:01:57.72
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