Earthquake with magnitude of ML 1.9 on date 24-12-2020 and time 16:56:12 (UTC) in region 5 km NW Spoleto (PG)

A magnitude ML 1.9 earthquake occured in region: 5 km NW Spoleto (PG), on

  • 24-12-2020 16:56:12 (UTC)
  • 24-12-2020 17:56:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.777, 12.722 at 10 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Spoleto PG 5 38218 38218
Castel Ritaldi PG 7 3278 41496
Campello sul Clitunno PG 7 2442 43938
Sant'Anatolia di Narco PG 11 564 44502
Scheggino PG 11 461 44963
Trevi PG 12 8469 53432
Vallo di Nera PG 12 364 53796
Giano dell'Umbria PG 13 3846 57642
Montefalco PG 14 5679 63321
Massa Martana PG 16 3770 67091
Cerreto di Spoleto PG 17 1075 68166
Acquasparta TR 17 4778 72944
Ferentillo TR 18 1913 74857
Poggiodomo PG 19 117 74974
Bevagna PG 20 5081 80055
Foligno PG 20 57155 137210

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km S of Foligno (57155 inhabitants)
25 Km N of Terni (111501 inhabitants)
46 Km SE of Perugia (166134 inhabitants)
64 Km NE of Viterbo (67173 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
81 Km W of Teramo (54892 inhabitants)
86 Km N of Guidonia Montecelio (88673 inhabitants)
91 Km N of Tivoli (56533 inhabitants)
100 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
Bulletin
Rev1000
ML 1.9 2020-12-24
16:56:12
42.7767 12.7217 10 2021-02-26
14:56:14
Bollettino Sismico Italiano INGV 86097991
Reviewed
Rev100
ML 1.9 2020-12-24
16:56:12
42.7813 12.7227 9 2020-12-24
17:05:12
Sala Sismica INGV-Roma 85681331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-24 16:56:12 ± 0.04
Latitude 42.7767 ± 0.0027
Longitude 12.7217 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86097991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 240
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.11421
Epicentral distance of station farthest from the epicenter (degree) 0.5324
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 86097991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-08 15:25:35

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 85681331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-24 17:05:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2020-12-24T16:56:30.47 0.6 undecidable manual S 108 0.4739 50 0.81 37
IV.CSP1.EHZ. 2020-12-24T16:56:30.25 0.6 undecidable manual S 48 0.4739 50 0.6 41
IV.MMO1.EHZ. 2020-12-24T16:56:29.43 0.6 undecidable manual S 74 0.4605 50 0.17 45
IV.FDMO.HHZ. 2020-12-24T16:56:26.78 0.6 undecidable manual S 46 0.3732 50 0.11 47
IV.NRCA.HHZ. 2020-12-24T16:56:24.28 0.6 undecidable manual S 79 0.2932 50 -0.04 48
IT.MTCL.HGZ. 2020-12-24T16:56:24.32 0.6 undecidable manual S 43 0.2977 50 -0.12 47
IV.LNSS.HHZ. 2020-12-24T16:56:24.10 0.3 undecidable manual S 126 0.2914 50 -0.16 71
IV.CESI.HHZ. 2020-12-24T16:56:23.66 0.3 undecidable manual S 30 0.2644 50 0.2 70
IV.GUMA.HHZ. 2020-12-24T16:56:23.50 0.3 undecidable manual P 57 0.5324 50 -0.06 69
IV.ASSB.HHZ. 2020-12-24T16:56:23.58 0.3 undecidable manual S 350 0.2698 50 -0.04 73
IV.CSP1.EHZ. 2020-12-24T16:56:22.53 0.1 undecidable manual P 48 0.4739 50 -0.02 93
IV.SMA1.EHZ. 2020-12-24T16:56:22.67 0.3 undecidable manual P 108 0.4739 50 0.12 69
IV.MGAB.HHZ. 2020-12-24T16:56:22.78 0.3 undecidable manual P 287 0.4667 50 0.34 66
IV.MMO1.EHZ. 2020-12-24T16:56:22.17 0.1 undecidable manual P 74 0.4605 50 -0.15 91
IV.ARRO.EHZ. 2020-12-24T16:56:21.44 0.3 undecidable manual S 171 0.1996 114 0.19 71
IT.FOPC.HGN. 2020-12-24T16:56:21.25 0.6 undecidable manual S 356 0.1934 114 0.23 47
IV.CESX.HHZ. 2020-12-24T16:56:21.15 0.6 undecidable manual S 211 0.1952 114 0.07 49
IV.FDMO.HHZ. 2020-12-24T16:56:20.72 0.1 undecidable manual P 46 0.3732 50 -0.11 93
IV.LNSS.HHZ. 2020-12-24T16:56:19.20 0.1 undecidable manual P 126 0.2914 50 -0.24 93
IV.NRCA.HHZ. 2020-12-24T16:56:19.26 0.1 negative manual P 79 0.2932 50 -0.21 93
IT.MTCL.HGZ. 2020-12-24T16:56:19.41 0.3 undecidable manual P 43 0.2977 50 -0.13 71
IV.GAVE.EHZ. 2020-12-24T16:56:19.60 0.3 undecidable manual S 124 0.152 120 0 75
IV.MOMA.HHZ. 2020-12-24T16:56:18.30 0.6 undecidable manual S 284 0.1142 127 -0.09 49
IV.CESI.HHZ. 2020-12-24T16:56:18.82 0.1 undecidable manual P 30 0.2644 50 -0.16 95
IT.GNU.HGE. 2020-12-24T16:56:18.43 0.6 undecidable manual S 284 0.1142 127 0.04 50
IV.ASSB.HHZ. 2020-12-24T16:56:18.88 0.1 undecidable manual P 350 0.2698 50 -0.19 94
IV.CESX.HHZ. 2020-12-24T16:56:17.52 0.1 undecidable manual P 211 0.1952 114 -0.08 97
IV.ARRO.EHZ. 2020-12-24T16:56:17.74 0.1 undecidable manual P 171 0.1996 114 0.04 98
IT.FOPC.HGN. 2020-12-24T16:56:17.56 0.3 undecidable manual P 356 0.1934 114 -0.01 74
IT.GNU.HGE. 2020-12-24T16:56:16.09 0.3 undecidable manual P 284 0.1142 127 0.04 75
IV.MOMA.HHZ. 2020-12-24T16:56:16.08 0.1 undecidable manual P 284 0.1142 127 0.03 100
IV.GAVE.EHZ. 2020-12-24T16:56:16.67 0.1 undecidable manual P 124 0.152 120 -0.08 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHE. ML:2 0.0010275 1.08 AML other m 2020-12-24T16:56:19.39
IV.MOMA.HNE. ML:2 0.001005 0.62 AML other m 2020-12-24T16:56:19.60
IV.MOMA.HHN. ML:2 0.001002 0.46 AML other m 2020-12-24T16:56:20.31
IV.MOMA.HNN. ML:2 0.0010035 0.36 AML other m 2020-12-24T16:56:20.49
IV.GAVE.HNN. ML:1.5 0.000305 1.6 AML other m 2020-12-24T16:56:20.89
IV.GAVE.EHN. ML:2 0.000982 0.52 AML other m 2020-12-24T16:56:21.10
IV.GAVE.HNE. ML:2.1 0.0010345 0.16 AML other m 2020-12-24T16:56:21.63
IV.GAVE.EHE. ML:2.1 0.0010065 0.16 AML other m 2020-12-24T16:56:21.64
IV.ARRO.EHN. ML:1.6 0.000248 1.36 AML other m 2020-12-24T16:56:23.84
IV.ARRO.EHE. ML:1.7 0.0003485 1.2 AML other m 2020-12-24T16:56:23.86
IV.CESX.HHE. ML:1.9 0.000605 1.48 AML other m 2020-12-24T16:56:23.09
IV.ASSB.HHN. ML:1.8 0.0002865 0.4 AML other m 2020-12-24T16:56:23.96
IV.CESI.HNN. ML:2.2 0.000703 1.68 AML other m 2020-12-24T16:56:24.13
IV.CESI.HHN. ML:2.2 0.000748 1.66 AML other m 2020-12-24T16:56:24.13
IV.CESX.HHN. ML:1.9 0.0005685 0.28 AML other m 2020-12-24T16:56:24.28
IV.NRCA.HHN. ML:2 0.000391 1.9 AML other m 2020-12-24T16:56:24.00
IV.NRCA.HNN. ML:1.9 0.0003825 1.2 AML other m 2020-12-24T16:56:24.95
IV.ASSB.HHE. ML:1.7 0.00022 0.38 AML other m 2020-12-24T16:56:25.17
IV.LNSS.HNE. ML:2 0.0004595 0.54 AML other m 2020-12-24T16:56:25.58
IV.LNSS.HHE. ML:2 0.0004925 1.32 AML other m 2020-12-24T16:56:25.97
IV.NRCA.HHE. ML:2 0.0004035 1.16 AML other m 2020-12-24T16:56:25.59
IV.NRCA.HNE. ML:2 0.0004485 1.16 AML other m 2020-12-24T16:56:25.01
IV.LNSS.HNN. ML:2 0.000435 0.2 AML other m 2020-12-24T16:56:25.66
IV.LNSS.HHN. ML:2 0.000477 0.2 AML other m 2020-12-24T16:56:25.76
IV.CESI.HNE. ML:1.8 0.000315 1.58 AML other m 2020-12-24T16:56:25.82
IV.CESI.HHE. ML:1.8 0.000309 0.48 AML other m 2020-12-24T16:56:25.82
IV.FDMO.HHE. ML:1.8 0.00019 0.22 AML other m 2020-12-24T16:56:27.51
IV.FDMO.HHN. ML:1.5 0.0001073 1.54 AML other m 2020-12-24T16:56:30.22
IV.CSP1.EHE. ML:2.4 0.000555 1.48 AML other m 2020-12-24T16:56:31.98
IV.SMA1.EHE. ML:1.7 0.000126 0.4 AML other m 2020-12-24T16:56:31.67
IV.CSP1.EHN. ML:2.2 0.000414 0.76 AML other m 2020-12-24T16:56:33.75
IV.MGAB.HHE. ML:1.6 0.000109 0.44 AML other m 2020-12-24T16:56:34.45
IV.MGAB.HHN. ML:1.6 0.000104 0.64 AML other m 2020-12-24T16:56:34.64
IV.SMA1.EHN. ML:1.8 0.000143 0.32 AML other m 2020-12-24T16:56:35.27
IV.GUMA.HHE. ML:2.1 0.0002665 0.38 AML other m 2020-12-24T16:56:35.31
IV.GUMA.HHN. ML:2 0.0001875 1.5 AML other m 2020-12-24T16:56:36.89
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