Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 26-12-2018 and time 17:25:37 (UTC) in region 2 km N Configni (RI)

A magnitude ML 1.7 earthquake occured in region: 2 km N Configni (RI), on

  • 26-12-2018 17:25:37 (UTC)
  • 26-12-2018 18:25:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4380, 12.6390 at 7 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 2 633 633
Cottanello RI 5 563 1196
Vacone RI 6 256 1452
Montasola RI 7 395 1847
Calvi dell'Umbria TR 7 1856 3703
Stroncone TR 7 4917 8620
Montebuono RI 9 883 9503
Torri in Sabina RI 9 1256 10759
Tarano RI 10 1444 12203
Contigliano RI 11 3783 15986
Greccio RI 11 1558 17544
Casperia RI 11 1246 18790
Selci RI 13 1106 19896
Otricoli TR 13 1869 21765
Collevecchio RI 13 1577 23342
Colli sul Velino RI 14 533 23875
Narni TR 14 19785 43660
Roccantica RI 14 563 44223
Terni TR 14 111501 155724
Cantalupo in Sabina RI 14 1685 157409
Magliano Sabina RI 15 3774 161183
Forano RI 16 3179 164362
Poggio Catino RI 16 1341 165703
Labro RI 17 374 166077
Stimigliano RI 17 2328 168405
Monte San Giovanni in Sabina RI 17 714 169119
Morro Reatino RI 19 373 169492
Rieti RI 19 47698 217190
Arrone TR 20 2763 219953
Poggio Mirteto RI 20 6315 226268
Rivodutri RI 20 1253 227521

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km S of Terni (111501 inhabitants)
44 Km E of Viterbo (67173 inhabitants)
49 Km N of Guidonia Montecelio (88673 inhabitants)
54 Km N of Tivoli (56533 inhabitants)
58 Km S of Foligno (57155 inhabitants)
62 Km N of Roma (2864731 inhabitants)
63 Km W of L'Aquila (69753 inhabitants)
77 Km S of Perugia (166134 inhabitants)
79 Km E of Civitavecchia (52991 inhabitants)
81 Km NE of Fiumicino (78395 inhabitants)
84 Km N of Velletri (53303 inhabitants)
86 Km N of Pomezia (62966 inhabitants)
91 Km W of Teramo (54892 inhabitants)
94 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 1.7 2018-12-26
17:25:37		 42.438 12.639 7 2019-06-04
09:16:17		 Bollettino Sismico Italiano INGV 68539871
Reviewed
Rev100 		ML 1.7 2018-12-26
17:25:36		 42.4377 12.638 7 2018-12-26
17:33:34		 Sala Sismica INGV-Roma 64248811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-26 17:25:37 ± 0.09
Latitude 42.4380 ± 0.0036
Longitude 12.6390 ± 0.0061
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68539871

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 415
Semi-minor axis of confidence ellipse (meter) 287
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 261
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.12051
Epicentral distance of station farthest from the epicenter (degree) 0.82828
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 64248811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-26 17:33:34

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 43
Type of magnitude ML
Reference to an origin 68539871
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-14 11:06:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2018-12-26T17:26:01.11 0.3 undecidable manual S 29 75.7686 50 0.45 64
IV.CESI.HHZ. 2018-12-26T17:25:58.50 0.3 undecidable manual S 19 66.4779 50 0.32 67
IV.ASSB.HHZ. 2018-12-26T17:25:58.99 0.3 undecidable manual S 1 67.0773 50 0.65 60
IV.SMA1.EHZ. 2018-12-26T17:25:57.27 0.3 undecidable manual S 69 60.7947 50 0.61 62
IV.NRCA.HHZ. 2018-12-26T17:25:55.82 0.3 undecidable manual S 41 58.5969 50 -0.24 69
IV.MURB.HHZ. 2018-12-26T17:25:53.51 0.3 undecidable manual P 354 91.9413 50 0.35 63
IV.MF5.EHZ. 2018-12-26T17:25:53.40 0.3 undecidable manual P 47 90.5427 50 0.46 62
IV.RM33.EHZ. 2018-12-26T17:25:53.18 0.3 undecidable manual S 80 47.7189 50 0 74
IV.CSP1.EHZ. 2018-12-26T17:25:52.53 0.6 undecidable manual P 32 85.9473 50 0.3 43
IV.MOMA.HHZ. 2018-12-26T17:25:51.17 0.3 undecidable manual S 352 40.9257 50 -0.2 72
IT.GNU.HGE. 2018-12-26T17:25:51.16 0.3 undecidable manual S 352 40.9257 50 -0.21 72
IV.TERO.HHZ. 2018-12-26T17:25:51.35 0.1 undecidable manual P 75 81.4518 50 -0.2 89
IV.FIAM.HHZ. 2018-12-26T17:25:51.98 0.6 undecidable manual S 116 43.5231 50 -0.06 49
IV.SACS.HHZ. 2018-12-26T17:25:50.90 0.1 undecidable manual P 308 74.9694 50 0.36 87
IV.LATE.HHZ. 2018-12-26T17:25:50.31 0.3 undecidable manual P 286 70.9734 50 0.38 65
IV.LNSS.HHZ. 2018-12-26T17:25:50.25 0.1 undecidable manual S 61 37.5291 100 -0.01 100
IV.FDMO.HHZ. 2018-12-26T17:25:50.39 0.1 undecidable manual P 29 75.7686 50 -0.28 88
IV.ASSB.HHZ. 2018-12-26T17:25:49.00 0.1 undecidable manual P 1 67.0773 50 -0.33 89
IV.MGAB.HHZ. 2018-12-26T17:25:49.59 0.1 undecidable manual P 321 67.9764 50 0.13 92
IV.CESI.HHZ. 2018-12-26T17:25:49.05 0.1 undecidable manual P 19 66.4779 50 -0.19 91
IV.GAVE.EHZ. 2018-12-26T17:25:49.29 0.6 undecidable manual S 36 35.0427 101 -0.12 49
IV.TOLF.HHZ. 2018-12-26T17:25:49.09 0.1 undecidable manual P 232 66.8775 50 -0.21 91
IV.CERT.HHZ. 2018-12-26T17:25:48.24 0.1 undecidable manual P 152 61.0944 50 -0.17 93
IV.SMA1.EHZ. 2018-12-26T17:25:48.32 0.1 undecidable manual P 69 60.7947 50 -0.04 95
IV.NRCA.HHZ. 2018-12-26T17:25:47.68 0.1 undecidable manual P 41 58.5969 50 -0.33 90
IV.RM33.EHZ. 2018-12-26T17:25:46.18 0.1 undecidable manual P 80 47.7189 50 -0.17 95
IV.MTCE.HHZ. 2018-12-26T17:25:46.38 0.3 undecidable manual P 170 46.8198 50 0.17 71
IV.FIAM.HHZ. 2018-12-26T17:25:45.62 0.1 undecidable manual P 116 43.5231 50 -0.07 98
IV.LNSS.HHZ. 2018-12-26T17:25:44.47 0.1 undecidable manual P 61 37.5291 100 -0.19 96
IV.MOMA.HHZ. 2018-12-26T17:25:44.72 0.1 undecidable manual P 352 40.9257 50 -0.58 87
IT.GNU.HGE. 2018-12-26T17:25:44.89 0.3 undecidable manual P 352 40.9257 50 -0.41 69
IV.GAVE.EHZ. 2018-12-26T17:25:44.01 0.1 undecidable manual P 36 35.0427 101 -0.16 97
IV.CESX.HHZ. 2018-12-26T17:25:43.72 0.3 undecidable manual S 347 19.3695 109 -0.42 71
IT.MMP1.HGZ. 2018-12-26T17:25:42.10 0.3 undecidable manual P 157 22.755 107 0.32 72
IT.TRN1.HGZ. 2018-12-26T17:25:42.39 0.6 undecidable manual S 2 13.3755 117 0.19 50
IV.CESX.HHZ. 2018-12-26T17:25:41.35 0.1 undecidable manual P 347 19.3695 109 0.22 99
IV.ARRO.EHZ. 2018-12-26T17:25:41.44 0.1 undecidable manual P 33 18.7701 110 0.43 95
IT.TRN1.HGZ. 2018-12-26T17:25:40.14 0.3 undecidable manual P 2 13.3755 117 0.13 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:2.0 0.0007704999999999999 0.62 AML other m 2018-12-26T17:25:46.43
IV.GAVE.EHE. ML:1.9 0.000361 0.38 AML other m 2018-12-26T17:25:50.27
IV.LNSS.HHE. ML:2.1 0.000546 0.1 AML other m 2018-12-26T17:25:51.32
IV.LNSS.HNN. ML:2.1 0.00054109025 0.2816 AML other m 2018-12-26T17:25:51.52
IV.LNSS.HHN. ML:2.2 0.0005909999999999999 0.28 AML other m 2018-12-26T17:25:51.52
IV.MOMA.HNE. ML:1.8 0.0002003834 0.192 AML other m 2018-12-26T17:25:52.10
IV.GAVE.EHN. ML:2.0 0.0003775 1.04 AML other m 2018-12-26T17:25:52.19
IV.MOMA.HHN. ML:1.9 0.0002595 0.2 AML other m 2018-12-26T17:25:52.32
IV.GAVE.HNE. ML:1.9 0.00035227885000000005 0.2688 AML other m 2018-12-26T17:25:52.68
IV.MOMA.HHE. ML:1.8 0.00022399999999999997 0.82 AML other m 2018-12-26T17:25:53.36
IV.RM33.EHN. ML:1.6 0.0001036 0.44 AML other m 2018-12-26T17:25:54.93
IV.FIAM.HHN. ML:1.2 0.000057400000000000006 0.7 AML other m 2018-12-26T17:25:55.09
IV.RM33.EHE. ML:1.7 0.000154 1.1 AML other m 2018-12-26T17:25:55.24
IV.NRCA.HNE. ML:2.1 0.00027360830000000005 0.2304 AML other m 2018-12-26T17:25:56.68
IV.NRCA.HHE. ML:2.1 0.000286 0.14 AML other m 2018-12-26T17:25:56.67
IV.NRCA.HHN. ML:1.9 0.0001795 0.12 AML other m 2018-12-26T17:25:57.59
IV.TOLF.HHE. ML:1.2 0.00003105 0.64 AML other m 2018-12-26T17:25:58.24
IV.MTCE.HHN. ML:1.2 0.000047350000000000006 1.44 AML other m 2018-12-26T17:25:58.06
IV.SMA1.EHN. ML:1.8 0.000115 1.48 AML other m 2018-12-26T17:25:59.23
IV.CESI.HHN. ML:1.9 0.000142 0.48 AML other m 2018-12-26T17:25:59.28
IV.MGAB.HHN. ML:1.7 0.0000818 0.8 AML other m 2018-12-26T17:25:59.58
IV.CERT.HHE. ML:1.7 0.0001095 0.46 AML other m 2018-12-26T17:26:00.26
IV.ASSB.HHE. ML:1.6 0.00006465 0.48 AML other m 2018-12-26T17:26:00.44
IV.MTCE.HHE. ML:1.2 0.0000477 0.28 AML other m 2018-12-26T17:26:00.43
IV.CERT.HHN. ML:1.4 0.00004705 1.3 AML other m 2018-12-26T17:26:00.82
IV.SMA1.EHE. ML:2.0 0.0002125 1.54 AML other m 2018-12-26T17:26:01.79
IV.ASSB.HHN. ML:1.5 0.00005325 0.84 AML other m 2018-12-26T17:26:01.02
IV.MGAB.HNN. ML:1.7 0.00007788697 0.32 AML other m 2018-12-26T17:26:01.10
IV.FDMO.HHN. ML:1.9 0.0001154 0.14 AML other m 2018-12-26T17:26:01.88
IV.MGAB.HHE. ML:1.8 0.0001135 1.68 AML other m 2018-12-26T17:26:02.04
IV.MGAB.HNE. ML:1.8 0.00010017637500000002 1.6544 AML other m 2018-12-26T17:26:02.05
IV.FDMO.HHE. ML:1.8 0.00009435 0.18 AML other m 2018-12-26T17:26:02.11
IV.FIAM.HHE. ML:1.2 0.000047579650000000004 1.4496 AML other m 2018-12-26T17:26:02.89
IV.LATE.HHE. ML:1.5 0.00005175 1.06 AML other m 2018-12-26T17:26:02.38
IV.TERO.HHN. ML:1.5 0.0000405 0.24 AML other m 2018-12-26T17:26:03.31
IV.TOLF.HHN. ML:1.4 0.000050199999999999994 0.36 AML other m 2018-12-26T17:26:03.41
IV.TERO.HHE. ML:1.5 0.0000383 0.74 AML other m 2018-12-26T17:26:04.35
IV.SACS.HHE. ML:1.4 0.00003965 1.58 AML other m 2018-12-26T17:26:05.90
IV.LATE.HHN. ML:1.8 0.00010819999999999999 0.3 AML other m 2018-12-26T17:26:05.81
IV.SACS.HHN. ML:1.5 0.000045249999999999995 1.24 AML other m 2018-12-26T17:26:05.78
IV.CESI.HHE. ML:1.6 0.00007895 0.32 AML other m 2018-12-26T17:26:06.81
IV.MURB.HHE. ML:2.4 0.000266 0.38 AML other m 2018-12-26T17:26:10.60
IV.MURB.HHN. ML:2.2 0.000175 0.32 AML other m 2018-12-26T17:26:11.71
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