Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 21-01-2020 and time 19:57:54 (Italy) in region 3 km SW Scheggino (PG)

A magnitude ML 1.3 earthquake occured in region: 3 km SW Scheggino (PG), on

  • 21-01-2020 18:57:54 (UTC)
  • 21-01-2020 19:57:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7000, 12.8060 at 12 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Scheggino PG 3 461 461
Sant'Anatolia di Narco PG 5 564 1025
Spoleto PG 7 38218 39243
Ferentillo TR 9 1913 41156
Vallo di Nera PG 9 364 41520
Poggiodomo PG 11 117 41637
Montefranco TR 12 1276 42913
Monteleone di Spoleto PG 13 599 43512
Polino TR 13 233 43745
Arrone TR 13 2763 46508
Campello sul Clitunno PG 14 2442 48950
Cerreto di Spoleto PG 16 1075 50025
Cascia PG 17 3217 53242
Castel Ritaldi PG 18 3278 56520
Labro RI 19 374 56894
Morro Reatino RI 19 373 57267

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of Terni (111501 inhabitants)
30 Km S of Foligno (57155 inhabitants)
57 Km SE of Perugia (166134 inhabitants)
62 Km NW of L'Aquila (69753 inhabitants)
65 Km E of Viterbo (67173 inhabitants)
74 Km W of Teramo (54892 inhabitants)
78 Km N of Guidonia Montecelio (88673 inhabitants)
82 Km N of Tivoli (56533 inhabitants)
94 Km N of Roma (2864731 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
Reviewed
Rev100 		ML 1.3 2020-01-21
18:57:54		 42.7 12.8055 12 2020-01-21
19:47:36		 Sala Sismica INGV-Roma 75706211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-21 18:57:54 ± 0.05
Latitude 42.7000 ± 0.0027
Longitude 12.8055 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75706211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 319
Semi-minor axis of confidence ellipse (meter) 161
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 310
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.66550
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 75706211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-21 19:47:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2020-01-21T18:58:56.39 3.0 undecidable manual Sn 0.31 0
IV.CRMI.HHZ. 2020-01-21T18:58:47.09 3.0 undecidable manual Sn 0.66 0
IT.VNF1.HGZ. 2020-01-21T18:58:41.43 3.0 undecidable manual S -0.12 0
IV.FDMO.HHZ. 2020-01-21T18:58:08.53 0.6 undecidable manual S 31 43.8228 91 0.02 48
IV.EL6.EHZ. 2020-01-21T18:58:07.21 0.3 undecidable manual P 19 73.8705 90 0.05 67
IV.CESI.HHZ. 2020-01-21T18:58:06.45 0.3 undecidable manual S 13 34.743 91 0.35 68
IV.NRCA.HHZ. 2020-01-21T18:58:04.35 0.3 undecidable manual S 59 29.1486 91 -0.26 69
IV.MOMA.HHZ. 2020-01-21T18:58:02.69 0.1 undecidable manual S 301 22.3554 93 -0.11 97
IV.CESX.HHE. 2020-01-21T18:58:02.22 0.6 undecidable manual S 240 20.5683 93 -0.09 49
IV.LNSS.HHZ. 2020-01-21T18:58:02.65 0.3 undecidable manual S 119 21.9669 93 -0.05 74
IV.FDMO.HHZ. 2020-01-21T18:58:02.47 0.3 undecidable manual P 31 43.8228 91 -0.07 71
IV.CESI.HHZ. 2020-01-21T18:58:01.24 0.1 undecidable manual P 13 34.743 91 0.1 95
IV.ASSB.HHZ. 2020-01-21T18:58:01.95 0.3 undecidable manual P 343 39.8268 91 0.03 72
IT.MTCL.HGE. 2020-01-21T18:58:01.42 0.1 undecidable manual P 26 36.2415 91 0.05 96
IV.ARRO.EHZ. 2020-01-21T18:58:00.74 0.3 undecidable manual S 194 13.7751 105 0.22 72
IV.NRCA.HHZ. 2020-01-21T18:58:00.26 0.3 undecidable manual P 59 29.1486 91 -0.03 73
IV.LNSS.HHZ. 2020-01-21T18:57:59.16 0.3 undecidable manual P 119 21.9669 93 -0.02 74
IV.MOMA.HHZ. 2020-01-21T18:57:59.36 0.3 undecidable manual P 301 22.3554 93 0.12 73
IV.CESX.HHE. 2020-01-21T18:57:58.68 0.3 undecidable manual P 240 20.5683 93 -0.27 71
IV.GAVE.EHZ. 2020-01-21T18:57:58.79 0.3 undecidable manual S 97 7.2927 137 -0.26 73
IV.ARRO.EHZ. 2020-01-21T18:57:58.11 0.3 undecidable manual P 194 13.7751 105 0.19 73
IV.GAVE.EHZ. 2020-01-21T18:57:57.13 0.1 undecidable manual P 97 7.2927 137 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:1.6 0.0005595 1.66 AML other m 2020-01-21T18:57:59.87
IV.GAVE.EHN. ML:1.4 0.00034750000000000004 0.12 AML other m 2020-01-21T18:57:59.26
IV.ARRO.EHN. ML:1.2 0.0001395 0.2 AML other m 2020-01-21T18:58:01.31
IV.ARRO.EHE. ML:1.2 0.0001555 0.18 AML other m 2020-01-21T18:58:01.62
IV.MOMA.HHN. ML:1.4 0.00014350000000000002 0.26 AML other m 2020-01-21T18:58:03.32
IV.LNSS.HHN. ML:1.3 0.00013350000000000002 1.24 AML other m 2020-01-21T18:58:03.89
IV.MOMA.HHE. ML:1.3 0.0001398 0.22 AML other m 2020-01-21T18:58:03.57
IV.LNSS.HHE. ML:1.3 0.00013000000000000002 0.7 AML other m 2020-01-21T18:58:04.42
IV.NRCA.HHN. ML:1.3 0.00009279999999999999 0.7 AML other m 2020-01-21T18:58:04.15
IV.NRCA.HHE. ML:1.2 0.0000736 0.62 AML other m 2020-01-21T18:58:04.98
IV.GAVE.HNE. ML:1.5 0.00046031675 0.1024 AML other m 2020-01-21T18:57:59.04
IV.GAVE.HNN. ML:1.0 0.00013954875 0.128 AML other m 2020-01-21T18:57:59.26
IV.MOMA.HNE. ML:1.3 0.00013223985900000002 0.2432 AML other m 2020-01-21T18:58:03.58
IV.MOMA.HNN. ML:1.4 0.00016505134999999997 0.2688 AML other m 2020-01-21T18:58:03.19
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