Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 03-04-2020 and time 13:59:57 (Italy) in region 1 km E Artena (RM)

A magnitude ML 1.5 earthquake occured in region: 1 km E Artena (RM), on

  • 03-04-2020 11:59:57 (UTC)
  • 03-04-2020 13:59:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7380, 12.9260 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.

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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 1 14276 14276
Valmontone RM 5 15959 30235
Labico RM 6 6379 36614
Rocca Massima LT 7 1136 37750
Colleferro RM 7 21595 59345
Lariano RM 8 13432 72777
Cave RM 9 11287 84064
Segni RM 10 9159 93223
Cori LT 11 11065 104288
Genazzano RM 11 6036 110324
Gavignano RM 11 1916 112240
Palestrina RM 12 21672 133912
Rocca di Cave RM 12 377 134289
Castel San Pietro Romano RM 12 902 135191
Paliano FR 13 8281 143472
Montelanico RM 14 2131 145603
Velletri RM 14 53303 198906
Zagarolo RM 14 17843 216749
San Cesareo RM 14 15153 231902
Capranica Prenestina RM 14 351 232253
Rocca Priora RM 15 11962 244215
Olevano Romano RM 16 6687 250902
Poli RM 17 2418 253320
San Vito Romano RM 17 3273 256593
Gallicano nel Lazio RM 17 6334 262927
Norma LT 17 3946 266873
Monte Compatri RM 18 11978 278851
Nemi RM 18 1943 280794
Gorga RM 18 710 281504
Colonna RM 18 4287 285791
Cisterna di Latina LT 18 36868 322659
Bellegra RM 18 2887 325546
Rocca di Papa RM 18 17034 342580
Serrone FR 18 3099 345679
Anagni FR 19 21464 367143
Roiate RM 19 737 367880
Casape RM 19 744 368624
Pisoniano RM 19 770 369394
Monte Porzio Catone RM 19 8693 378087
Lanuvio RM 20 13632 391719
Genzano di Roma RM 20 23970 415689
Carpineto Romano RM 20 4524 420213

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Velletri (53303 inhabitants)
27 Km SE of Tivoli (56533 inhabitants)
28 Km NE of Aprilia (73446 inhabitants)
30 Km N of Latina (125985 inhabitants)
34 Km SE of Guidonia Montecelio (88673 inhabitants)
36 Km E of Pomezia (62966 inhabitants)
41 Km NE of Anzio (54211 inhabitants)
41 Km E of Roma (2864731 inhabitants)
57 Km E of Fiumicino (78395 inhabitants)
79 Km SW of L'Aquila (69753 inhabitants)
94 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 1.5 2020-04-03
11:59:57		 41.7382 12.9265 11 2020-07-18
21:08:32		 Bollettino Sismico Italiano INGV 78081501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-03 11:59:57 ± 0.1
Latitude 41.7382 ± 0.0045
Longitude 12.9265 ± 0.0048
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 78081501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 404
Semi-minor axis of confidence ellipse (meter) 305
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
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) 104
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.10972
Epicentral distance of station farthest from the epicenter (degree) 0.58636
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 78081501
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-07-15 22:01:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.POFI.HNE. 2020-04-03T12:00:18.44 0.6 undecidable manual S 92 65.0904 50 0.63 40
IV.VVLD.HHZ. 2020-04-03T12:00:16.40 0.6 undecidable manual S 76 59.3961 50 0.09 46
IV.LRP.EHN. 2020-04-03T12:00:15.77 0.6 undecidable manual S 100 55.5999 50 0.49 43
IV.PTQR.HHZ. 2020-04-03T12:00:14.13 0.6 undecidable manual S 51 50.2164 50 0.28 45
IV.POFI.HNE. 2020-04-03T12:00:09.20 0.1 undecidable manual P 92 65.0904 50 -0.22 89
IV.GIUL.HHZ. 2020-04-03T12:00:09.44 0.6 undecidable manual S 126 33.744 50 0 49
IV.MTCE.HHZ. 2020-04-03T12:00:09.60 0.6 undecidable manual S 334 35.0427 50 -0.2 47
IV.GUAR.HNN. 2020-04-03T12:00:08.74 0.3 undecidable manual S 79 32.5452 50 -0.39 68
IV.LRP.EHN. 2020-04-03T12:00:08.05 0.1 undecidable manual P 100 55.5999 50 0.09 93
IV.VVLD.HHZ. 2020-04-03T12:00:08.35 0.1 undecidable manual P 76 59.3961 50 -0.2 90
IV.PTQR.HHZ. 2020-04-03T12:00:07.22 0.3 undecidable manual P 51 50.2164 50 0.09 71
IV.LATB.EHZ. 2020-04-03T12:00:07.27 0.3 undecidable manual S 174 27.2505 50 -0.45 68
IV.CERT.HHE. 2020-04-03T12:00:06.57 0.3 undecidable manual S 11 23.8539 50 -0.23 72
IV.RMP.HHZ. 2020-04-03T12:00:06.21 0.6 undecidable manual S 294 20.0688 50 0.41 46
IV.RDP.HHN. 2020-04-03T12:00:04.77 0.6 undecidable manual S 278 18.0708 50 -0.49 46
IV.GIUL.HHZ. 2020-04-03T12:00:04.54 0.1 positive manual P 126 33.744 50 -0.05 98
IV.GUAR.HNN. 2020-04-03T12:00:04.50 0.3 undecidable manual P 79 32.5452 50 0.1 73
IV.MTCE.HHZ. 2020-04-03T12:00:04.83 0.3 undecidable manual P 334 35.0427 50 0.04 73
IV.SAMA.EHZ. 2020-04-03T12:00:03.75 0.3 undecidable manual P 280 28.0497 50 0.04 74
IV.RCAV.EHN. 2020-04-03T12:00:03.34 0.6 undecidable manual S 7 12.1767 132 -0.31 48
IV.LATB.EHZ. 2020-04-03T12:00:03.77 0.3 undecidable manual P 174 27.2505 50 0.18 72
IV.RMP.HHZ. 2020-04-03T12:00:02.88 0.3 undecidable manual P 294 20.0688 50 0.39 70
IV.RDP.HHN. 2020-04-03T12:00:02.28 0.1 undecidable manual P 278 18.0708 50 0.11 99
IV.CERT.HHE. 2020-04-03T12:00:02.96 0.1 undecidable manual P 11 23.8539 50 -0.1 98
IV.RCAV.EHN. 2020-04-03T12:00:01.36 0.1 undecidable manual P 7 12.1767 132 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RDP.HHE. ML:1.2 0.00013481860000000002 0.16 AML other m 2020-04-03T12:00:06.14
IV.RMP.HHN. ML:2.0 0.0007685 0.36 AML other m 2020-04-03T12:00:06.57
IV.RDP.HHN. ML:1.7 0.00041700000000000005 0.34 AML other m 2020-04-03T12:00:06.37
IV.RMP.HHE. ML:1.9 0.00059569715 0.9216 AML other m 2020-04-03T12:00:06.57
IV.GIUL.HHN. ML:1.6 0.00014950000000000003 0.14 AML other m 2020-04-03T12:00:09.82
IV.GIUL.HHE. ML:1.4 0.00010750000000000001 1.58 AML other m 2020-04-03T12:00:10.89
IV.VVLD.HHE. ML:1.1 0.000024458785 0.4992 AML other m 2020-04-03T12:00:16.79
IV.VVLD.HHN. ML:1.0 0.000020062145 0.256 AML other m 2020-04-03T12:00:16.89
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