Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 25-02-2020 and time 08:02:11 (Italy) in region 4 km W Greccio (RI)

A magnitude ML 1.7 earthquake occured in region: 4 km W Greccio (RI), on

  • 25-02-2020 07:02:11 (UTC)
  • 25-02-2020 08:02:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4580, 12.7190 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
Greccio RI 4 1558 1558
Cottanello RI 6 563 2121
Stroncone TR 7 4917 7038
Contigliano RI 7 3783 10821
Colli sul Velino RI 7 533 11354
Configni RI 7 633 11987
Montasola RI 9 395 12382
Labro RI 10 374 12756
Vacone RI 10 256 13012
Morro Reatino RI 12 373 13385
Rivodutri RI 13 1253 14638
Terni TR 13 111501 126139
Rieti RI 13 47698 173837
Torri in Sabina RI 13 1256 175093
Casperia RI 14 1246 176339
Calvi dell'Umbria TR 14 1856 178195
Montebuono RI 14 883 179078
Poggio Bustone RI 15 2055 181133
Arrone TR 15 2763 183896
Tarano RI 15 1444 185340
Monte San Giovanni in Sabina RI 15 714 186054
Cantalice RI 15 2755 188809
Roccantica RI 15 563 189372
Montefranco TR 16 1276 190648
Selci RI 17 1106 191754
Cantalupo in Sabina RI 18 1685 193439
Polino TR 18 233 193672
Narni TR 18 19785 213457
Poggio Catino RI 18 1341 214798
Ferentillo TR 19 1913 216711
Collevecchio RI 19 1577 218288

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SE of Terni (111501 inhabitants)
51 Km E of Viterbo (67173 inhabitants)
51 Km N of Guidonia Montecelio (88673 inhabitants)
55 Km N of Tivoli (56533 inhabitants)
56 Km S of Foligno (57155 inhabitants)
57 Km W of L'Aquila (69753 inhabitants)
66 Km NE of Roma (2864731 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
84 Km W of Teramo (54892 inhabitants)
86 Km N of Velletri (53303 inhabitants)
86 Km NE of Fiumicino (78395 inhabitants)
86 Km E of Civitavecchia (52991 inhabitants)
89 Km N of Pomezia (62966 inhabitants)
96 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 2020-02-25
07:02:11		 42.4577 12.7193 11 2020-07-18
21:08:38		 Bollettino Sismico Italiano INGV 79660021
Reviewed
Rev100 		ML 1.7 2020-02-25
07:02:10		 42.4582 12.6817 16 2020-02-25
07:13:51		 Sala Sismica INGV-Roma 76793131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-25 07:02:11 ± 0.05
Latitude 42.4577 ± 0.0018
Longitude 12.7193 ± 0.0037
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79660021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 300
Semi-minor axis of confidence ellipse (meter) 180
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 290
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 26
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.68079
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 76793131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-25 07:13:51

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 35
Type of magnitude ML
Reference to an origin 79660021
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-05-28 14:59:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
XK.GIZZ.HHZ. 2020-02-25T07:04:08.59 3.0 undecidable manual Sn 0.46 0
IV.CTI.HHZ. 2020-02-25T07:04:01.31 3.0 undecidable manual Sg 9.36 0
AC.VLO.HHZ. 2020-02-25T07:03:54.05 3.0 undecidable manual Pg 22.09 0
IV.CAFE.HHZ. 2020-02-25T07:03:24.59 3.0 undecidable manual Sg 5.48 0
MN.PDG.HHZ. 2020-02-25T07:03:24.31 3.0 negative manual Pn 0.87 0
IV.CTI.HHZ. 2020-02-25T07:03:14.61 3.0 undecidable manual Pg 6.88 0
IV.ILLI.HHZ. 2020-02-25T07:03:13.21 3.0 negative manual Pg -3.38 0
IV.FNVD.HHZ. 2020-02-25T07:03:13.26 3.0 undecidable manual Sn 0.38 0
CR.STON.BHZ. 2020-02-25T07:03:08.82 3.0 undecidable manual Pn 1.11 0
IV.BRSN.EHZ. 2020-02-25T07:03:04.24 3.0 undecidable manual Sn -4.08 0
IV.ROSPO.HHZ. 2020-02-25T07:02:45.66 3.0 negative manual Pg 6.05 0
IV.SNTG.HHZ. 2020-02-25T07:02:41.51 3.0 undecidable manual S 1.24 0
IV.ATTE.HHZ. 2020-02-25T07:02:35.15 3.0 undecidable manual S -4.48 0
IV.TERO.HHZ. 2020-02-25T07:02:34.20 3.0 undecidable manual S -0.78 0
IV.APEC.HHZ. 2020-02-25T07:02:33.28 3.0 positive manual P 0.53 0
IV.MMUR.HNZ. 2020-02-25T07:02:28.71 3.0 undecidable manual P -2.3 0
IV.EL6.EHZ. 2020-02-25T07:02:28.39 3.0 undecidable manual P -0.93 0
IV.MML1.HNE. 2020-02-25T07:02:24.02 0.6 undecidable manual P 16 75.5688 90 -0.26 44
IT.GNU.HGZ. 2020-02-25T07:02:24.48 0.6 undecidable manual S 342 40.2264 90 0.06 48
IV.MGAB.HHZ. 2020-02-25T07:02:24.06 3.0 positive manual P -0.3 0
IV.FDMO.HHZ. 2020-02-25T07:02:23.50 0.3 undecidable manual P 25 70.8735 90 -0.04 70
IV.MMO1.EHZ. 2020-02-25T07:02:23.33 0.3 undecidable manual P 45 69.6747 90 -0.03 70
IV.MC2.EHZ. 2020-02-25T07:02:22.52 0.3 undecidable manual P 37 63.1923 90 0.15 68
IV.LNSS.HHZ. 2020-02-25T07:02:22.07 0.6 undecidable manual S 58 30.747 90 0.19 48
IV.CESI.HHZ. 2020-02-25T07:02:22.26 0.1 undecidable manual P 14 62.5929 90 0 94
IT.MTCL.HGZ. 2020-02-25T07:02:22.47 0.6 undecidable manual P 21 63.6918 90 0.03 47
IV.SRES.HHE. 2020-02-25T07:02:21.71 0.6 undecidable manual S 215 29.9478 90 0.06 49
IV.CERT.HHZ. 2020-02-25T07:02:21.63 0.3 undecidable manual P 159 60.3951 90 -0.31 68
IV.SMA1.EHZ. 2020-02-25T07:02:21.33 0.6 undecidable manual P 69 53.9016 90 0.4 44
IV.GAVE.EHZ. 2020-02-25T07:02:21.50 0.3 undecidable manual S 29 29.6481 90 -0.09 75
IV.NRCA.HHZ. 2020-02-25T07:02:20.61 0.3 undecidable manual P 38 52.7028 90 -0.14 71
IV.RM33.EHZ. 2020-02-25T07:02:18.95 0.6 undecidable manual P 82 40.9257 90 0.02 48
IV.FIAM.HNN. 2020-02-25T07:02:18.74 0.6 undecidable manual P 123 38.8278 90 0.13 48
IV.MOMA.HHZ. 2020-02-25T07:02:18.78 0.6 undecidable manual P 342 40.3263 90 -0.06 49
IT.GNU.HGZ. 2020-02-25T07:02:17.77 0.6 undecidable manual P 342 40.2264 90 -1.07 35
IV.GAVE.EHZ. 2020-02-25T07:02:17.20 0.1 positive manual P 29 29.6481 90 0 100
IV.SRES.HHE. 2020-02-25T07:02:17.65 0.6 undecidable manual P 215 29.9478 90 0.41 46
IV.LNSS.HHZ. 2020-02-25T07:02:17.39 0.3 undecidable manual P 58 30.747 90 0.02 74
IV.ARRO.EHZ. 2020-02-25T07:02:17.31 0.3 undecidable manual S 16 13.9749 91 -0.09 77
IT.MMP1.HGN. 2020-02-25T07:02:16.12 0.3 undecidable manual P 174 23.2545 90 -0.09 75
IT.TRN1.HGE. 2020-02-25T07:02:16.94 0.3 undecidable manual S 332 12.6762 102 -0.11 76
IV.CESX.HHZ. 2020-02-25T07:02:15.94 0.3 undecidable manual P 327 19.9689 90 0.24 73
IT.TRN1.HGE. 2020-02-25T07:02:14.72 0.1 undecidable manual P 332 12.6762 102 0.14 100
IV.ARRO.EHZ. 2020-02-25T07:02:14.98 0.1 negative manual P 16 13.9749 91 0.2 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHN. ML:1.8 0.0006717858 0.24 AML other m 2020-02-25T07:02:18.26
IV.ARRO.EHE. ML:1.7 0.0005220819 0.1984 AML other m 2020-02-25T07:02:19.35
IV.CESX.HHE. ML:1.5 0.00022742175 0.2208 AML other m 2020-02-25T07:02:20.40
IV.CESX.HHN. ML:1.6 0.00032025385 0.32 AML other m 2020-02-25T07:02:19.24
IV.GAVE.EHE. ML:2.0 0.0004634388 0.1216 AML other m 2020-02-25T07:02:21.80
IV.GAVE.EHN. ML:1.7 0.0002267989 0.1408 AML other m 2020-02-25T07:02:21.75
IV.GAVE.HNE. ML:2.0 0.000444048 0.112 AML other m 2020-02-25T07:02:21.80
IV.LNSS.HNE. ML:1.7 0.00022285445000000002 0.1184 AML other m 2020-02-25T07:02:23.72
IV.LNSS.HNN. ML:1.7 0.00021180959 0.1408 AML other m 2020-02-25T07:02:22.71
IV.LNSS.HHE. ML:1.7 0.00024571 0.1184 AML other m 2020-02-25T07:02:23.66
IV.LNSS.HHN. ML:1.6 0.00019626815 0.1408 AML other m 2020-02-25T07:02:22.71
IV.MOMA.HHN. ML:1.9 0.00027637925 0.2592 AML other m 2020-02-25T07:02:25.40
IV.MOMA.HHE. ML:1.8 0.0002028107 0.4 AML other m 2020-02-25T07:02:25.35
IV.MOMA.HNN. ML:1.9 0.00026206785 0.2624 AML other m 2020-02-25T07:02:25.28
IV.MOMA.HNE. ML:1.8 0.00021577174999999998 0.3904 AML other m 2020-02-25T07:02:25.36
IV.RM33.EHE. ML:1.3 0.00006275625499999999 0.1792 AML other m 2020-02-25T07:02:25.49
IV.RM33.HNE. ML:1.5 0.00010823575 0.1696 AML other m 2020-02-25T07:02:26.19
IV.RM33.EHN. ML:1.1 0.00004224771 0.2592 AML other m 2020-02-25T07:02:25.27
IV.NRCA.HHN. ML:1.7 0.00012978185 0.1376 AML other m 2020-02-25T07:02:29.28
IV.NRCA.HNE. ML:1.8 0.00013779770000000002 0.1504 AML other m 2020-02-25T07:02:29.16
IV.NRCA.HHE. ML:1.7 0.00012814571 0.1408 AML other m 2020-02-25T07:02:29.15
IV.SMA1.EHE. ML:1.6 0.00008939897 0.1568 AML other m 2020-02-25T07:02:29.84
IV.SMA1.EHN. ML:1.4 0.00006156662 0.2784 AML other m 2020-02-25T07:02:30.40
IV.CERT.HHN. ML:1.2 0.00003731989 0.1376 AML other m 2020-02-25T07:02:30.96
IV.CESI.HHE. ML:1.7 0.00010438443 0.2624 AML other m 2020-02-25T07:02:31.33
IV.CESI.HNN. ML:1.9 0.00016608642499999998 0.2496 AML other m 2020-02-25T07:02:32.91
IV.CESI.HHN. ML:1.7 0.00010525119499999999 0.2176 AML other m 2020-02-25T07:02:32.78
IV.FDMO.HHN. ML:1.4 0.00004239594 0.16 AML other m 2020-02-25T07:02:33.98
IV.FDMO.HHE. ML:1.6 0.000062256615 0.1984 AML other m 2020-02-25T07:02:34.77
IV.MGAB.HNE. ML:1.6 0.000072012575 0.3584 AML other m 2020-02-25T07:02:34.51
IV.MGAB.HHN. ML:1.5 0.000055555770000000006 0.2592 AML other m 2020-02-25T07:02:34.97
IV.MGAB.HNN. ML:1.5 0.00005238436 0.3424 AML other m 2020-02-25T07:02:34.48
IV.MGAB.HHE. ML:1.7 0.00007317404500000001 0.2016 AML other m 2020-02-25T07:02:35.16
IV.EL6.EHN. ML:1.6 0.00003747099 0.3424 AML other m 2020-02-25T07:02:45.84
IV.EL6.EHE. ML:1.6 0.000042097986499999995 0.3392 AML other m 2020-02-25T07:02:44.93
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