Earthquake with magnitude of ML 1.3 on date 19-12-2020 and time 00:45:54 (Italy) in region 8 km E Monteleone di Spoleto (PG)

A magnitude ML 1.3 earthquake occured in region: 8 km E Monteleone di Spoleto (PG), on

  • 18-12-2020 23:45:54 (UTC)
  • 19-12-2020 00:45:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.62, 13.04 at 11 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Monteleone di Spoleto PG 8 599 599
Leonessa RI 9 2435 3034
Cittareale RI 10 482 3516
Posta RI 11 694 4210
Cascia PG 12 3217 7427
Poggiodomo PG 14 117 7544
Borbona RI 14 617 8161
Polino TR 17 233 8394
Poggio Bustone RI 18 2055 10449
Micigliano RI 19 127 10576
Accumoli RI 19 667 11243
Rivodutri RI 19 1253 12496
Montereale AQ 20 2581 15077
Norcia PG 20 4957 20034

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Terni (111501 inhabitants)
42 Km NW of L'Aquila (69753 inhabitants)
47 Km SE of Foligno (57155 inhabitants)
54 Km W of Teramo (54892 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
76 Km N of Tivoli (56533 inhabitants)
76 Km SE of Perugia (166134 inhabitants)
80 Km E of Viterbo (67173 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
93 Km NE of Roma (2864731 inhabitants)
97 Km W of Chieti (51815 inhabitants)
97 Km W of Pescara (121014 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.3 2020-12-18
23:45:54
42.62 13.04 11 2020-12-18
23:51:32
Sala Sismica INGV-Roma 85529941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-18 23:45:54 ± 0.08
Latitude 42.62 ± 0.00
Longitude 13.04 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85529941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 435
Semi-minor axis of confidence ellipse (meter) 188
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 180
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.54859
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 85529941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-18 23:51:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2020-12-18T23:46:09.38 0.6 undecidable manual S 4 0.4191 50 0.07 47
IV.MMO1.EHZ. 2020-12-18T23:46:07.30 0.3 undecidable manual S 36 0.3489 50 0.07 72
IV.MNTT.EHZ. 2020-12-18T23:46:07.37 3.0 undecidable manual P 0.73 0
IV.MC2.EHZ. 2020-12-18T23:46:06.79 0.3 undecidable manual S 20 0.3112 50 0.67 62
IV.FIAM.HHZ. 2020-12-18T23:46:06.94 0.6 undecidable manual S 171 0.3543 50 -0.45 41
IV.CAMP.HHZ. 2020-12-18T23:46:05.02 0.6 undecidable manual S 107 0.2806 50 -0.18 46
IV.MTRA.EHZ. 2020-12-18T23:46:05.12 0.3 undecidable manual S 62 0.2932 50 -0.46 65
IV.ASSB.HHZ. 2020-12-18T23:46:05.15 3.0 negative manual P 0.23 0
IV.SRES.HHZ. 2020-12-18T23:46:05.78 0.3 undecidable manual P 226 0.5486 50 0.55 64
IV.MF5.EHZ. 2020-12-18T23:46:04.99 3.0 undecidable manual Pg 0.6 0
IV.CSP1.EHZ. 2020-12-18T23:46:04.22 3.0 undecidable manual P -0.31 0
IV.NRCA.HHZ. 2020-12-18T23:46:03.15 0.3 undecidable manual S 13 0.2212 50 -0.3 70
IV.FDMO.HHZ. 2020-12-18T23:46:03.02 1.0 negative manual P 4 0.4191 50 0 24
IV.SMA1.EHZ. 2020-12-18T23:46:03.33 0.6 undecidable manual S 87 0.214 50 0.09 49
IV.MOMA.HHZ. 2020-12-18T23:46:02.68 3.0 positive manual Pg -0.11 0
MN.AQU.HHZ. 2020-12-18T23:46:02.59 0.3 undecidable manual P 135 0.3741 50 0.34 69
IV.ARRO.EHZ. 2020-12-18T23:46:02.91 0.3 undecidable manual S 259 0.2086 50 -0.19 71
IV.T1299.HNZ. 2020-12-18T23:46:02.12 0.3 undecidable manual S 85 0.1754 50 0.03 74
IV.CESI.HHZ. 2020-12-18T23:46:02.57 0.6 undecidable manual P 345 0.3993 50 -0.12 47
IV.TERO.HHZ. 2020-12-18T23:46:01.29 3.0 undecidable manual P -1.89 0
IV.MMO1.EHZ. 2020-12-18T23:46:01.69 0.6 positive manual P 36 0.3489 50 -0.13 47
IV.MC2.EHZ. 2020-12-18T23:46:01.34 0.6 negative manual P 20 0.3112 50 0.17 47
IV.FIAM.HHZ. 2020-12-18T23:46:01.86 1.0 undecidable manual P 171 0.3543 50 -0.05 23
IV.CESX.HHZ. 2020-12-18T23:46:01.60 3.0 undecidable manual Pg -0.12 0
IV.GAVE.EHZ. 2020-12-18T23:46:00.59 0.3 undecidable manual S 304 0.1331 127 -0.22 74
IV.CAMP.HHZ. 2020-12-18T23:46:00.52 0.6 undecidable manual P 107 0.2806 50 -0.12 47
IV.MTRA.EHZ. 2020-12-18T23:46:00.87 0.6 undecidable manual P 62 0.2932 50 0 48
IV.NRCA.HHZ. 2020-12-18T23:45:59.50 0.1 positive manual P 13 0.2212 50 -0.13 96
IV.SMA1.EHZ. 2020-12-18T23:45:59.65 0.1 negative manual P 87 0.214 50 0.14 98
IV.ARRO.EHZ. 2020-12-18T23:45:59.38 0.1 negative manual P 259 0.2086 50 -0.05 97
IV.T1299.HNZ. 2020-12-18T23:45:58.94 0.1 undecidable manual P 85 0.1754 50 0.09 100
IV.GAVE.EHZ. 2020-12-18T23:45:58.24 0.3 negative manual P 304 0.1331 127 0.13 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.5 0.0002845 0.94 AML other m 2020-12-18T23:46:00.45
IV.GAVE.EHE. ML:1.6 0.0004035 0.64 AML other m 2020-12-18T23:46:01.35
IV.SMA1.EHE. ML:2.1 0.0007865 0.22 AML other m 2020-12-18T23:46:03.83
IV.NRCA.HHE. ML:1.4 0.0001465 1.5 AML other m 2020-12-18T23:46:03.97
IV.SMA1.EHN. ML:1.7 0.0003105 1.38 AML other m 2020-12-18T23:46:04.78
IV.NRCA.HHN. ML:1.4 0.000157 0.14 AML other m 2020-12-18T23:46:04.78
IV.ARRO.EHE. ML:1 5.6E-5 1.24 AML other m 2020-12-18T23:46:04.34
IV.ARRO.EHN. ML:1 5.79E-5 0.68 AML other m 2020-12-18T23:46:04.99
IV.MTRA.EHN. ML:1.5 0.000147 0.98 AML other m 2020-12-18T23:46:05.98
IV.MTRA.EHE. ML:1.5 0.00015215 1.8 AML other m 2020-12-18T23:46:05.96
IV.FIAM.HHN. ML:0.6 1.495E-5 0.64 AML other m 2020-12-18T23:46:07.46
IV.FIAM.HHE. ML:0.8 1.82E-5 1.26 AML other m 2020-12-18T23:46:08.66
IV.CESX.HHN. ML:0.9 3.09E-5 0.42 AML other m 2020-12-18T23:46:08.66
IV.CESI.HHN. ML:1.3 5.27E-5 1.74 AML other m 2020-12-18T23:46:09.06
IV.MOMA.HHN. ML:1.4 7.735E-5 1.74 AML other m 2020-12-18T23:46:10.95
IV.CESX.HHE. ML:0.9 3.01E-5 0.84 AML other m 2020-12-18T23:46:10.88
IV.CESI.HHE. ML:1.1 3.585E-5 0.9 AML other m 2020-12-18T23:46:10.24
IV.MOMA.HHE. ML:1.4 7.53E-5 1.32 AML other m 2020-12-18T23:46:10.17
IV.FDMO.HHE. ML:1 2.775E-5 1.54 AML other m 2020-12-18T23:46:11.14
IV.FDMO.HHN. ML:1 3.245E-5 1.04 AML other m 2020-12-18T23:46:11.72
IV.ASSB.HHN. ML:1.3 3.785E-5 0.62 AML other m 2020-12-18T23:46:13.44
IV.ASSB.HHE. ML:1.3 4.75E-5 0.94 AML other m 2020-12-18T23:46:13.94
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download