Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 18-01-2020 and time 20:45:10 (UTC) in region 5 km W Sellano (PG)

A magnitude ML 1.5 earthquake occured in region: 5 km W Sellano (PG), on

  • 18-01-2020 20:45:10 (UTC)
  • 18-01-2020 21:45:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8800, 12.8680 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
Sellano PG 5 1079 1079
Cerreto di Spoleto PG 8 1075 2154
Trevi PG 10 8469 10623
Campello sul Clitunno PG 10 2442 13065
Vallo di Nera PG 12 364 13429
Preci PG 14 724 14153
Foligno PG 16 57155 71308
Sant'Anatolia di Narco PG 17 564 71872
Monte Cavallo MC 17 145 72017
Castel Ritaldi PG 17 3278 75295
Montefalco PG 18 5679 80974
Scheggino PG 19 461 81435
Visso MC 19 1107 82542
Spoleto PG 19 38218 120760
Poggiodomo PG 19 117 120877

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km SE of Foligno (57155 inhabitants)
40 Km NE of Terni (111501 inhabitants)
46 Km SE of Perugia (166134 inhabitants)
73 Km W of Teramo (54892 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
81 Km NE of Viterbo (67173 inhabitants)
98 Km SW of Ancona (100861 inhabitants)
98 Km N of Guidonia Montecelio (88673 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 2020-01-18
20:45:10		 42.8803 12.868 11 2020-07-18
21:08:34		 Bollettino Sismico Italiano INGV 78446901
Reviewed
Rev100 		ML 1.5 2020-01-18
20:45:10		 42.8798 12.8662 11 2020-01-18
20:53:17		 Sala Sismica INGV-Roma 75635331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-18 20:45:10 ± 0.03
Latitude 42.8803 ± 0.0018
Longitude 12.8680 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 78446901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 174
Semi-minor axis of confidence ellipse (meter) 147
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 91
Circular confidence region, given by single value of horizontal uncertainty (meter) 170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48024
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 78446901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-21 17:06:38

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 75635331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-18 20:53:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2020-01-18T20:45:49.78 3.0 undecidable manual S -0.22 0
IV.SNTG.HHZ. 2020-01-18T20:45:24.71 0.3 undecidable manual S 8 42.0246 50 0.08 71
IV.ATCC.EHZ. 2020-01-18T20:45:24.03 0.3 undecidable manual S 331 38.5281 50 0.32 68
IV.CSP1.EHZ. 2020-01-18T20:45:23.20 0.3 undecidable manual S 49 36.0417 50 0.16 70
IV.CESX.HHZ. 2020-01-18T20:45:23.50 0.3 undecidable manual S 217 37.8288 50 -0.04 72
IV.MMO1.EHZ. 2020-01-18T20:45:23.68 0.3 undecidable manual S 87 37.3293 50 0.28 69
IV.LNSS.HHZ. 2020-01-18T20:45:22.47 0.3 undecidable manual S 155 33.8439 50 0.01 73
IV.ARRO.EHZ. 2020-01-18T20:45:22.75 0.3 undecidable manual S 194 34.4433 50 0.13 71
IV.RM33.EHZ. 2020-01-18T20:45:20.00 0.3 undecidable manual P 145 49.9167 50 -0.06 70
IV.MC2.EHZ. 2020-01-18T20:45:20.44 0.6 undecidable manual S 82 26.3514 50 -0.01 49
IV.MF5.EHZ. 2020-01-18T20:45:20.25 0.3 undecidable manual P 76 49.5171 50 0.25 67
IV.MML1.HNZ. 2020-01-18T20:45:20.72 0.3 undecidable manual S 18 27.2505 50 0.03 73
IV.MURB.HHZ. 2020-01-18T20:45:20.23 0.3 undecidable manual P 327 50.7159 50 0.04 70
IV.MOMA.HHZ. 2020-01-18T20:45:20.19 0.6 undecidable manual S 251 25.6521 50 -0.09 49
IV.EL6.EHZ. 2020-01-18T20:45:20.53 0.3 undecidable manual P 21 53.3022 50 -0.05 70
IV.SMA1.EHZ. 2020-01-18T20:45:19.87 0.3 undecidable manual P 126 47.1195 50 0.25 68
IV.FDMO.HHZ. 2020-01-18T20:45:19.91 0.3 undecidable manual S 46 24.8529 50 -0.15 72
IV.FOSV.EHZ. 2020-01-18T20:45:19.25 0.3 undecidable manual P 349 46.8198 50 -0.33 67
IV.MMO1.EHZ. 2020-01-18T20:45:18.14 0.3 undecidable manual P 87 37.3293 50 0.02 72
IV.NRCA.HHZ. 2020-01-18T20:45:18.80 0.1 undecidable manual S 104 20.6682 50 -0.15 97
IV.ATCC.EHZ. 2020-01-18T20:45:18.25 0.1 undecidable manual P 331 38.5281 50 -0.05 96
IV.GAVE.EHZ. 2020-01-18T20:45:18.91 0.3 undecidable manual S 174 20.9679 50 -0.12 73
IV.SNTG.HHZ. 2020-01-18T20:45:18.55 0.3 undecidable manual P 8 42.0246 50 -0.29 68
IV.LNSS.HHZ. 2020-01-18T20:45:17.52 0.3 undecidable manual P 155 33.8439 50 -0.05 72
IV.ARRO.EHZ. 2020-01-18T20:45:17.67 0.1 undecidable manual P 194 34.4433 50 0 97
IV.CESI.HHZ. 2020-01-18T20:45:17.04 0.1 undecidable manual S 12 14.1747 127 -0.05 100
IV.CSP1.EHZ. 2020-01-18T20:45:17.90 0.3 undecidable manual P 49 36.0417 50 -0.02 73
IT.MTCL.HGZ. 2020-01-18T20:45:17.48 0.1 undecidable manual S 40 16.4724 123 -0.29 95
IV.CESX.HHZ. 2020-01-18T20:45:17.95 0.3 undecidable manual P 217 37.8288 50 -0.25 69
IT.FOPC.HGN. 2020-01-18T20:45:17.98 0.6 undecidable manual S 307 16.6722 123 0.17 49
IV.FEMA.HNZ. 2020-01-18T20:45:17.99 0.1 undecidable manual S 58 17.3715 122 -0.01 100
IV.FDMO.HHZ. 2020-01-18T20:45:16.16 0.1 undecidable manual P 46 24.8529 50 -0.04 98
IV.MOMA.HHZ. 2020-01-18T20:45:16.34 0.1 undecidable manual P 251 25.6521 50 0.02 98
IV.ASSB.HHN. 2020-01-18T20:45:16.06 0.1 undecidable manual P 317 24.753 50 -0.12 97
IV.MC2.EHZ. 2020-01-18T20:45:16.44 0.3 undecidable manual P 82 26.3514 50 0.02 74
IV.MML1.HNZ. 2020-01-18T20:45:16.50 0.1 undecidable manual P 18 27.2505 50 -0.06 97
IT.FOPC.HGN. 2020-01-18T20:45:15.04 0.1 undecidable manual P 307 16.6722 123 0.14 98
IV.FEMA.HNZ. 2020-01-18T20:45:15.18 0.1 undecidable manual P 58 17.3715 122 0.17 97
IV.NRCA.HHZ. 2020-01-18T20:45:15.56 0.1 undecidable manual P 104 20.6682 50 0.01 100
IV.GAVE.EHZ. 2020-01-18T20:45:15.62 0.1 undecidable manual P 174 20.9679 50 0.02 99
IT.MTCL.HGZ. 2020-01-18T20:45:14.90 0.1 undecidable manual P 40 16.4724 123 0.03 100
IV.CESI.HHZ. 2020-01-18T20:45:14.61 0.1 undecidable manual P 12 14.1747 127 0.13 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:2.0 0.0011045 0.12 AML other m 2020-01-18T20:45:17.34
IV.CESI.HNN. ML:2.0 0.001037 0.1 AML other m 2020-01-18T20:45:17.34
IV.CESI.HNE. ML:1.9 0.0008115 0.3 AML other m 2020-01-18T20:45:17.43
IV.CESI.HHE. ML:1.9 0.0008405 0.3 AML other m 2020-01-18T20:45:17.43
IV.NRCA.HHE. ML:1.6 0.00029800000000000003 0.1 AML other m 2020-01-18T20:45:19.46
IV.GAVE.EHE. ML:1.5 0.000229 0.1 AML other m 2020-01-18T20:45:19.57
IV.NRCA.HHN. ML:1.4 0.0001715 0.94 AML other m 2020-01-18T20:45:20.51
IV.MOMA.HHN. ML:1.2 0.00009085 0.18 AML other m 2020-01-18T20:45:20.70
IV.FDMO.HHN. ML:1.4 0.00014450000000000002 0.88 AML other m 2020-01-18T20:45:20.45
IV.FDMO.HHE. ML:1.4 0.00014900000000000002 1.24 AML other m 2020-01-18T20:45:21.34
IV.GAVE.EHN. ML:1.5 0.0002415 0.62 AML other m 2020-01-18T20:45:21.94
IV.MOMA.HHE. ML:1.3 0.0001115 0.52 AML other m 2020-01-18T20:45:21.51
IV.LNSS.HHN. ML:1.4 0.0001085 0.42 AML other m 2020-01-18T20:45:22.96
IV.LNSS.HHE. ML:1.6 0.00015900000000000002 0.14 AML other m 2020-01-18T20:45:23.53
IV.CESX.HHN. ML:1.1 0.0000517 1.04 AML other m 2020-01-18T20:45:24.33
IV.CESX.HHE. ML:1.2 0.000055 1.46 AML other m 2020-01-18T20:45:24.12
IV.SMA1.EHE. ML:1.5 0.00008730000000000001 0.56 AML other m 2020-01-18T20:45:29.53
IV.SMA1.EHN. ML:1.4 0.00006620000000000001 0.5 AML other m 2020-01-18T20:45:29.84
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