Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 14-12-2020 and time 16:48:34 (Italy) in region 5 km SE Cerreto di Spoleto (PG)

A magnitude ML 1.8 earthquake occured in region: 5 km SE Cerreto di Spoleto (PG), on

  • 14-12-2020 15:48:34 (UTC)
  • 14-12-2020 16:48:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7840, 12.9630 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.

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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
Cerreto di Spoleto PG 6 1075 1075
Poggiodomo PG 8 117 1192
Vallo di Nera PG 8 364 1556
Cascia PG 8 3217 4773
Norcia PG 11 4957 9730
Sant'Anatolia di Narco PG 12 564 10294
Sellano PG 12 1079 11373
Preci PG 12 724 12097
Scheggino PG 13 461 12558
Monteleone di Spoleto PG 15 599 13157
Campello sul Clitunno PG 16 2442 15599
Spoleto PG 19 38218 53817
Visso MC 19 1107 54924
Castelsantangelo sul Nera MC 20 281 55205

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SE of Foligno (57155 inhabitants)
36 Km NE of Terni (111501 inhabitants)
59 Km SE of Perugia (166134 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
62 Km W of Teramo (54892 inhabitants)
81 Km NE of Viterbo (67173 inhabitants)
89 Km N of Guidonia Montecelio (88673 inhabitants)
92 Km N of Tivoli (56533 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 1.8 2020-12-14
15:48:34		 42.7845 12.963 10 2021-02-26
14:56:14		 Bollettino Sismico Italiano INGV 86092851
Reviewed
Rev100 		ML 1.8 2020-12-14
15:48:34		 42.7853 12.9575 9 2020-12-14
15:56:13		 Sala Sismica INGV-Roma 85425031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-14 15:48:34 ± 0.04
Latitude 42.7845 ± 0.0018
Longitude 12.9630 ± 0.0025
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 86092851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 208
Semi-minor axis of confidence ellipse (meter) 126
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 114
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.10522
Epicentral distance of station farthest from the epicenter (degree) 0.71316
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 85425031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-14 15:56:13

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 86092851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-08 08:15:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2020-12-14T15:48:58.89 0.6 undecidable manual S 359 79.1652 50 0.66 38
IV.EL6.EHZ. 2020-12-14T15:48:53.88 0.6 undecidable manual S 10 61.494 50 0.37 43
IV.ATCC.EHZ. 2020-12-14T15:48:51.35 0.3 undecidable manual S 330 51.6039 50 0.48 64
IV.TERO.HHZ. 2020-12-14T15:48:51.92 0.6 undecidable manual S 109 55.2003 50 0.08 46
IV.SNTG.HHZ. 2020-12-14T15:48:51.33 0.3 undecidable manual S 358 52.2033 50 0.29 67
IV.MF5.EHZ. 2020-12-14T15:48:50.35 0.6 undecidable manual S 61 46.2204 50 0.91 36
IV.GUMA.HHZ. 2020-12-14T15:48:49.17 0.6 undecidable manual S 44 43.2234 50 0.54 43
IV.ARVD.HHZ. 2020-12-14T15:48:48.08 0.3 undecidable manual P 359 79.1652 50 -0.06 67
IV.PF6.EHN. 2020-12-14T15:48:48.62 0.6 undecidable manual S 26 43.4232 50 -0.08 48
IV.CSP1.EHZ. 2020-12-14T15:48:47.76 0.6 undecidable manual S 30 39.3273 50 0.16 47
IV.ASSB.HHZ. 2020-12-14T15:48:46.97 0.6 undecidable manual S 319 37.8288 50 -0.22 47
IV.MTRA.EHE. 2020-12-14T15:48:46.49 0.3 undecidable manual S 95 35.4423 50 -0.07 72
IV.CESX.HHZ. 2020-12-14T15:48:46.68 0.3 undecidable manual S 238 36.3414 50 -0.12 72
IV.MML1.HNE. 2020-12-14T15:48:46.73 0.3 undecidable manual S 1 36.5412 50 -0.11 72
IV.EL6.EHZ. 2020-12-14T15:48:45.29 0.1 undecidable manual P 10 61.494 50 -0.13 91
IT.FOPC.HGN. 2020-12-14T15:48:45.06 0.6 undecidable manual S 314 29.4483 50 0.1 49
IV.MOMA.HHZ. 2020-12-14T15:48:45.77 0.3 undecidable manual S 274 32.0457 50 0.12 72
IV.T1299.HNN. 2020-12-14T15:48:45.45 0.3 undecidable manual S 123 30.9468 50 0.11 72
IV.MMO1.EHZ. 2020-12-14T15:48:45.20 0.3 undecidable manual S 67 32.2455 50 -0.5 67
IT.GNU.HGE. 2020-12-14T15:48:45.95 0.6 undecidable manual S 274 32.0457 50 0.3 46
IV.ARRO.EHZ. 2020-12-14T15:48:44.40 0.3 undecidable manual S 215 27.8499 50 -0.14 72
IV.FDMO.HHZ. 2020-12-14T15:48:44.81 0.3 undecidable manual S 20 29.748 50 -0.22 71
IV.TERO.HHZ. 2020-12-14T15:48:44.23 0.3 undecidable manual P 109 55.2003 50 -0.22 68
IV.MC2.EHZ. 2020-12-14T15:48:43.22 0.3 undecidable manual S 52 23.1546 113 0.13 73
IV.SNTG.HHZ. 2020-12-14T15:48:43.83 0.1 undecidable manual P 358 52.2033 50 -0.16 92
IV.ATCC.EHZ. 2020-12-14T15:48:43.86 0.1 undecidable manual P 330 51.6039 50 -0.03 94
IV.MF5.EHZ. 2020-12-14T15:48:43.46 0.3 undecidable manual P 61 46.2204 50 0.39 66
IV.CESI.HHZ. 2020-12-14T15:48:43.45 0.3 undecidable manual S 349 24.9528 112 -0.21 72
IV.FEMA.HNZ. 2020-12-14T15:48:42.58 0.3 undecidable manual S 20 20.9679 115 0.19 72
IV.LNSS.HHZ. 2020-12-14T15:48:42.32 0.3 undecidable manual S 163 21.0678 115 -0.12 73
IV.PF6.EHN. 2020-12-14T15:48:42.64 0.1 undecidable manual P 26 43.4232 50 0 97
IV.GUMA.HHZ. 2020-12-14T15:48:42.65 0.1 undecidable manual P 44 43.2234 50 0.05 96
IT.MTCL.HGZ. 2020-12-14T15:48:42.81 0.3 undecidable manual S 7 23.4543 113 -0.37 69
IV.MTRA.EHE. 2020-12-14T15:48:41.22 0.3 undecidable manual P 95 35.4423 50 -0.18 71
IV.CESX.HHZ. 2020-12-14T15:48:41.41 0.3 undecidable manual P 238 36.3414 50 -0.14 71
IV.MML1.HNE. 2020-12-14T15:48:41.42 0.1 positive manual P 1 36.5412 50 -0.14 95
IV.CSP1.EHZ. 2020-12-14T15:48:41.88 0.1 positive manual P 30 39.3273 50 -0.13 95
IV.ASSB.HHZ. 2020-12-14T15:48:41.54 0.1 undecidable manual P 319 37.8288 50 -0.23 93
IT.GNU.HGE. 2020-12-14T15:48:40.93 0.3 undecidable manual P 274 32.0457 50 0.05 73
IV.FDMO.HHZ. 2020-12-14T15:48:40.38 0.1 positive manual P 20 29.748 50 -0.14 96
IT.FOPC.HGN. 2020-12-14T15:48:40.44 0.1 undecidable manual P 314 29.4483 50 -0.04 98
IV.MOMA.HHZ. 2020-12-14T15:48:40.83 0.1 negative manual P 274 32.0457 50 -0.05 97
IV.T1299.HNN. 2020-12-14T15:48:40.71 0.1 negative manual P 123 30.9468 50 0.01 99
IV.NRCA.HHZ. 2020-12-14T15:48:40.08 0.3 undecidable manual S 66 13.4754 126 -0.07 75
IV.MMO1.EHZ. 2020-12-14T15:48:40.71 0.1 undecidable manual P 67 32.2455 50 -0.19 95
IV.ARRO.EHZ. 2020-12-14T15:48:40.17 0.1 positive manual P 215 27.8499 50 -0.07 98
IV.FEMA.HNZ. 2020-12-14T15:48:39.09 0.1 positive manual P 20 20.9679 115 0.09 99
IV.GAVE.HNZ. 2020-12-14T15:48:39.90 0.3 undecidable manual S 209 11.6772 130 0.24 73
IV.CESI.HHZ. 2020-12-14T15:48:39.70 0.1 positive manual P 349 24.9528 112 -0.03 99
IV.MC2.EHZ. 2020-12-14T15:48:39.47 0.1 positive manual P 52 23.1546 113 0.07 99
IT.MTCL.HGZ. 2020-12-14T15:48:39.25 0.1 undecidable manual P 7 23.4543 113 -0.2 96
IV.LNSS.HHZ. 2020-12-14T15:48:39.05 0.1 positive manual P 163 21.0678 115 0.02 100
IV.NRCA.HHZ. 2020-12-14T15:48:37.86 0.1 undecidable manual P 66 13.4754 126 0.16 99
IV.GAVE.HNZ. 2020-12-14T15:48:37.79 0.1 positive manual P 209 11.6772 130 0.37 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:2.6 0.00406 0.14 AML other m 2020-12-14T15:48:40.21
IV.NRCA.HNN. ML:2.6 0.00387 0.14 AML other m 2020-12-14T15:48:40.21
IV.NRCA.HHE. ML:2.5 0.003025 0.1 AML other m 2020-12-14T15:48:40.32
IV.NRCA.HNE. ML:2.4 0.002732256 0.1024 AML other m 2020-12-14T15:48:40.32
IV.GAVE.EHN. ML:2.0 0.0013054469 0.1408 AML other m 2020-12-14T15:48:40.43
IV.GAVE.HNN. ML:1.5 0.00035219395 0.1536 AML other m 2020-12-14T15:48:40.43
IV.GAVE.HNE. ML:2.3 0.0022163655000000003 0.2048 AML other m 2020-12-14T15:48:40.71
IV.GAVE.EHE. ML:2.3 0.002185 0.22 AML other m 2020-12-14T15:48:40.72
IV.CESI.HNN. ML:2.1 0.0007668775999999999 0.256 AML other m 2020-12-14T15:48:43.66
IV.CESI.HHN. ML:2.1 0.0007645 0.26 AML other m 2020-12-14T15:48:43.66
IV.CESI.HHE. ML:1.6 0.0002554872 0.0896 AML other m 2020-12-14T15:48:44.31
IV.CESI.HNE. ML:1.6 0.00022838251999999996 0.0896 AML other m 2020-12-14T15:48:44.31
IV.ARRO.EHN. ML:1.4 0.000143 0.1 AML other m 2020-12-14T15:48:44.97
IV.FDMO.HHN. ML:1.7 0.00026274415000000003 0.1792 AML other m 2020-12-14T15:48:44.99
IV.FDMO.HHE. ML:1.9 0.00039200000000000004 0.2 AML other m 2020-12-14T15:48:45.03
IV.ARRO.EHE. ML:1.5 0.0001665 0.18 AML other m 2020-12-14T15:48:45.88
IV.MOMA.HHE. ML:1.8 0.00029049999999999996 0.14 AML other m 2020-12-14T15:48:46.41
IV.MOMA.HNE. ML:1.8 0.00026589185 0.1408 AML other m 2020-12-14T15:48:46.41
IV.ASSB.HHE. ML:1.7 0.000192 0.14 AML other m 2020-12-14T15:48:47.45
IV.ASSB.HHN. ML:1.9 0.0003114316 0.1792 AML other m 2020-12-14T15:48:47.39
IV.CESX.HHN. ML:1.7 0.00019636765 0.1664 AML other m 2020-12-14T15:48:47.99
IV.CESX.HHE. ML:1.7 0.00018099999999999998 0.88 AML other m 2020-12-14T15:48:47.99
IV.CSP1.EHE. ML:1.8 0.00023199999999999997 0.28 AML other m 2020-12-14T15:48:48.63
IV.CSP1.EHN. ML:1.7 0.00015854940000000002 0.256 AML other m 2020-12-14T15:48:49.91
IV.SNTG.HHN. ML:1.6 0.0000885 0.12 AML other m 2020-12-14T15:48:51.86
IV.ATCC.EHE. ML:1.9 0.0001823807 0.2432 AML other m 2020-12-14T15:48:52.22
IV.SNTG.HHE. ML:1.5 0.000072610465 0.1024 AML other m 2020-12-14T15:48:52.61
IV.GUMA.HNE. ML:1.8 0.00018833859999999999 0.3328 AML other m 2020-12-14T15:48:52.60
IV.GUMA.HHN. ML:1.9 0.00023199999999999997 0.4 AML other m 2020-12-14T15:48:52.82
IV.TERO.HHN. ML:1.3 0.000044961365000000004 0.1152 AML other m 2020-12-14T15:48:52.95
IV.TERO.HHE. ML:1.3 0.00004745 0.12 AML other m 2020-12-14T15:48:53.16
IV.ATCC.EHN. ML:1.8 0.0001417331 0.2176 AML other m 2020-12-14T15:48:53.43
IV.MF5.EHN. ML:1.6 0.00012948084999999998 0.64 AML other m 2020-12-14T15:48:54.48
IV.MF5.EHE. ML:1.6 0.00010570791000000002 0.4736 AML other m 2020-12-14T15:48:55.10
IV.EL6.EHE. ML:1.7 0.000108237005 0.1792 AML other m 2020-12-14T15:48:55.63
IV.EL6.EHN. ML:1.7 0.00010857995 0.2048 AML other m 2020-12-14T15:48:55.85
IV.ARVD.HHN. ML:1.5 0.000041209325 0.2176 AML other m 2020-12-14T15:49:00.09
IV.ARVD.HHE. ML:1.5 0.000039716279999999996 0.1536 AML other m 2020-12-14T15:49:00.27
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