Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 29-04-2020 and time 22:36:28 (Italy) in region 3 km NW Configni (RI)

A magnitude ML 1.8 earthquake occured in region: 3 km NW Configni (RI), on

  • 29-04-2020 20:36:28 (UTC)
  • 29-04-2020 22:36:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4460, 12.6270 at 8 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
Configni RI 3 633 633
Vacone RI 7 256 889
Cottanello RI 7 563 1452
Stroncone TR 7 4917 6369
Calvi dell'Umbria TR 7 1856 8225
Montasola RI 8 395 8620
Montebuono RI 9 883 9503
Tarano RI 10 1444 10947
Torri in Sabina RI 10 1256 12203
Greccio RI 12 1558 13761
Contigliano RI 12 3783 17544
Otricoli TR 12 1869 19413
Narni TR 12 19785 39198
Casperia RI 12 1246 40444
Terni TR 13 111501 151945
Collevecchio RI 14 1577 153522
Selci RI 14 1106 154628
Colli sul Velino RI 14 533 155161
Roccantica RI 15 563 155724
Magliano Sabina RI 15 3774 159498
Cantalupo in Sabina RI 15 1685 161183
Forano RI 17 3179 164362
Labro RI 17 374 164736
Stimigliano RI 17 2328 167064
Poggio Catino RI 18 1341 168405
Monte San Giovanni in Sabina RI 18 714 169119
Morro Reatino RI 19 373 169492
Arrone TR 19 2763 172255
Orte VT 20 8923 181178
Rieti RI 20 47698 228876
San Gemini TR 20 5018 233894
Gallese VT 20 2849 236743

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km S of Terni (111501 inhabitants)
43 Km E of Viterbo (67173 inhabitants)
50 Km N of Guidonia Montecelio (88673 inhabitants)
55 Km N of Tivoli (56533 inhabitants)
57 Km S of Foligno (57155 inhabitants)
63 Km N of Roma (2864731 inhabitants)
64 Km W of L'Aquila (69753 inhabitants)
76 Km S of Perugia (166134 inhabitants)
79 Km NE of Civitavecchia (52991 inhabitants)
81 Km NE of Fiumicino (78395 inhabitants)
85 Km N of Velletri (53303 inhabitants)
87 Km N of Pomezia (62966 inhabitants)
92 Km W of Teramo (54892 inhabitants)
95 Km N of Aprilia (73446 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 1.8 2020-04-29
20:36:28		 42.4455 12.6267 8 2020-07-18
21:08:35		 Bollettino Sismico Italiano INGV 78956541
Reviewed
Rev100 		ML 1.8 2020-04-29
20:36:28		 42.4468 12.6332 8 2020-04-29
20:42:48		 Sala Sismica INGV-Roma 78680711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-29 20:36:28 ± 0.08
Latitude 42.4455 ± 0.0036
Longitude 12.6267 ± 0.0073
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 78956541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 514
Semi-minor axis of confidence ellipse (meter) 252
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 285
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.11331
Epicentral distance of station farthest from the epicenter (degree) 0.74104
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 78956541
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-05-08 15:11:33

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 78680711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-29 20:42:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-04-29T20:36:54.20 0.6 undecidable manual S 76 82.251 50 0.36 41
IV.MMO1.EHZ. 2020-04-29T20:36:53.03 0.3 undecidable manual S 48 76.1682 50 0.82 53
IV.FDMO.HHZ. 2020-04-29T20:36:52.58 0.3 undecidable manual S 30 75.5688 50 0.53 60
IV.MC2.EHZ. 2020-04-29T20:36:50.75 0.3 undecidable manual S 41 69.0753 50 0.42 63
IV.MGAB.HHZ. 2020-04-29T20:36:50.52 0.6 undecidable manual S 321 66.6777 50 0.84 36
IV.CESI.HHZ. 2020-04-29T20:36:49.87 0.6 undecidable manual S 20 66.0894 50 0.35 43
IV.TOLF.HHZ. 2020-04-29T20:36:49.70 0.6 undecidable manual S 231 66.5778 50 0.04 46
IV.CERT.HHZ. 2020-04-29T20:36:48.97 0.6 undecidable manual S 152 62.2932 50 0.45 42
IV.NRCA.HHZ. 2020-04-29T20:36:47.59 0.6 undecidable manual S 43 58.5969 50 0.06 46
IV.RM33.EHZ. 2020-04-29T20:36:44.88 0.6 undecidable manual S 81 48.618 50 0.02 47
IV.FIAM.HHZ. 2020-04-29T20:36:43.84 0.3 undecidable manual S 116 44.7219 50 0.01 72
IV.FDMO.HHZ. 2020-04-29T20:36:42.06 0.3 undecidable manual P 30 75.5688 50 -0.14 66
IV.MOMA.HHZ. 2020-04-29T20:36:42.63 0.6 undecidable manual S 353 40.0266 50 0.06 48
IV.TERO.HHZ. 2020-04-29T20:36:42.92 0.6 undecidable manual P 76 82.251 50 -0.32 42
IV.MMO1.EHZ. 2020-04-29T20:36:41.82 0.3 undecidable manual P 48 76.1682 50 -0.47 61
IV.TOLF.HHZ. 2020-04-29T20:36:40.58 0.1 undecidable manual P 231 66.5778 50 -0.25 87
IV.MC2.EHZ. 2020-04-29T20:36:40.97 0.1 undecidable manual P 41 69.0753 50 -0.24 87
IV.MGAB.HHZ. 2020-04-29T20:36:40.94 0.3 undecidable manual P 321 66.6777 50 0.1 67
IV.CESI.HHZ. 2020-04-29T20:36:40.47 0.1 undecidable manual P 20 66.0894 50 -0.27 87
IV.NRCA.HHZ. 2020-04-29T20:36:39.09 0.3 undecidable manual P 43 58.5969 50 -0.5 63
IV.CERT.HHZ. 2020-04-29T20:36:39.91 0.3 undecidable manual P 152 62.2932 50 -0.26 66
IV.SRES.HHZ. 2020-04-29T20:36:38.57 0.6 undecidable manual S 203 25.0527 108 0.7 41
IV.MTCE.HHZ. 2020-04-29T20:36:38.02 0.6 undecidable manual P 169 47.8188 50 0.09 47
IV.BARO.HNZ. 2020-04-29T20:36:38.42 0.6 undecidable manual P 245 52.0035 50 -0.16 46
IV.RM33.EHZ. 2020-04-29T20:36:37.62 0.1 positive manual P 81 48.618 50 -0.43 87
IV.FIAM.HHZ. 2020-04-29T20:36:37.13 0.3 undecidable manual P 116 44.7219 50 -0.33 67
IV.MOMA.HHZ. 2020-04-29T20:36:36.14 0.1 undecidable manual P 353 40.0266 50 -0.59 84
IV.CESX.HHZ. 2020-04-29T20:36:35.76 0.3 undecidable manual S 350 18.3705 114 0.05 74
IV.ARRO.EHZ. 2020-04-29T20:36:35.94 0.6 undecidable manual S 37 18.6702 113 0.13 49
IT.MMP1.HGE. 2020-04-29T20:36:34.16 0.3 undecidable manual P 155 23.9538 109 0.35 69
IV.SRES.HHZ. 2020-04-29T20:36:34.16 0.1 undecidable manual P 203 25.0527 108 0.14 96
IT.TRN1.HGZ. 2020-04-29T20:36:33.80 0.6 undecidable manual S 7 12.5763 122 -0.14 49
IV.ARRO.EHZ. 2020-04-29T20:36:32.83 0.1 positive manual P 37 18.6702 113 0 100
IV.CESX.HHZ. 2020-04-29T20:36:32.79 0.1 negative manual P 350 18.3705 114 0.02 100
IT.TRN1.HGZ. 2020-04-29T20:36:31.91 0.3 undecidable manual P 7 12.5763 122 0.16 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHE. ML:1.6 0.0003165333 0.3456 AML other m 2020-04-29T20:36:38.86
IV.CESX.HHN. ML:1.6 0.00030071959999999995 0.3584 AML other m 2020-04-29T20:36:36.74
IV.ARRO.EHE. ML:1.7 0.00042047605 0.1536 AML other m 2020-04-29T20:36:37.48
IV.ARRO.EHN. ML:1.8 0.0005410901500000001 0.2048 AML other m 2020-04-29T20:36:37.11
IV.SRES.HHN. ML:1.2 0.00010260656 0.2304 AML other m 2020-04-29T20:36:41.77
IV.SRES.HHE. ML:1.4 0.00014323076000000002 0.192 AML other m 2020-04-29T20:36:39.65
IV.MOMA.HHE. ML:1.8 0.0002016666 0.2304 AML other m 2020-04-29T20:36:44.40
IV.MOMA.HHN. ML:1.8 0.00022290965 0.256 AML other m 2020-04-29T20:36:43.81
IV.MOMA.HNN. ML:1.8 0.00023963675 0.2688 AML other m 2020-04-29T20:36:43.68
IV.MOMA.HNE. ML:1.7 0.00018726355 0.2304 AML other m 2020-04-29T20:36:44.29
IV.RM33.EHE. ML:1.6 0.000119150375 0.1408 AML other m 2020-04-29T20:36:46.11
IV.RM33.EHN. ML:1.6 0.00011333738500000001 0.2176 AML other m 2020-04-29T20:36:47.20
IV.RM33.HNE. ML:1.9 0.000224791675 0.9472 AML other m 2020-04-29T20:36:43.90
IV.RM33.HNN. ML:1.9 0.00019853480000000002 0.6912 AML other m 2020-04-29T20:36:51.65
IV.NRCA.HHN. ML:1.9 0.00016864794999999999 0.128 AML other m 2020-04-29T20:36:47.82
IV.NRCA.HNE. ML:2.2 0.0003803722 0.1536 AML other m 2020-04-29T20:36:48.11
IV.NRCA.HHE. ML:2.2 0.00038228615 0.1408 AML other m 2020-04-29T20:36:48.10
IV.CERT.HHE. ML:1.4 0.000043848529999999994 0.3328 AML other m 2020-04-29T20:36:54.26
IV.CERT.HHN. ML:1.2 0.000030881680000000005 0.4224 AML other m 2020-04-29T20:36:56.47
IV.CESI.HHE. ML:1.6 0.000064262955 0.1408 AML other m 2020-04-29T20:36:51.02
IV.CESI.HNN. ML:2.1 0.00022972835000000002 0.576 AML other m 2020-04-29T20:36:55.49
IV.CESI.HNE. ML:1.8 0.00012249306000000003 0.5376 AML other m 2020-04-29T20:36:55.32
IV.CESI.HHN. ML:1.9 0.00014166384999999998 0.2432 AML other m 2020-04-29T20:36:50.63
IV.TOLF.HHN. ML:1.8 0.00010432329 0.896 AML other m 2020-04-29T20:36:53.57
IV.TOLF.HHE. ML:1.8 0.000112214085 1.0752 AML other m 2020-04-29T20:36:57.27
IV.MGAB.HHE. ML:1.6 0.000082037305 0.1792 AML other m 2020-04-29T20:36:52.63
IV.MGAB.HNE. ML:1.7 0.00008863981 0.832 AML other m 2020-04-29T20:37:00.86
IV.MGAB.HHN. ML:1.6 0.00006564571 0.32 AML other m 2020-04-29T20:36:52.63
IV.MGAB.HNN. ML:1.6 0.00008169145999999999 0.2816 AML other m 2020-04-29T20:36:52.63
IV.FDMO.HHN. ML:1.9 0.00012228505000000002 0.2432 AML other m 2020-04-29T20:36:53.59
IV.FDMO.HHE. ML:1.8 0.00010360928 0.2176 AML other m 2020-04-29T20:36:53.88
IV.TERO.HNN. ML:2.1 0.00015658179999999999 1.4208 AML other m 2020-04-29T20:36:57.95
IV.TERO.HHN. ML:1.6 0.000049070525000000006 0.128 AML other m 2020-04-29T20:36:54.87
IV.TERO.HHE. ML:1.6 0.000053251964999999995 0.1408 AML other m 2020-04-29T20:36:55.37
IV.VIVA.HHN. ML:2.1 0.00018936379999999998 0.32 AML other m 2020-04-29T20:36:57.16
IV.VIVA.HHE. ML:2.2 0.00020638285 0.4864 AML other m 2020-04-29T20:36:58.25
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