Earthquake with magnitude of ML 0.8 on date 08-12-2019 and time 18:41:18 (Italy) in region 5 km NW Norcia (PG)

A magnitude ML 0.8 earthquake occured in region: 5 km NW Norcia (PG), on

  • 08-12-2019 17:41:18 (UTC)
  • 08-12-2019 18:41:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.82, 13.05 at 10 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
Norcia PG 5 4957 4957
Preci PG 6 724 5681
Cerreto di Spoleto PG 11 1075 6756
Castelsantangelo sul Nera MC 11 281 7037
Cascia PG 12 3217 10254
Visso MC 12 1107 11361
Sellano PG 13 1079 12440
Ussita MC 15 444 12884
Poggiodomo PG 16 117 13001
Vallo di Nera PG 17 364 13365
Monte Cavallo MC 19 145 13510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
56 Km W of Teramo (54892 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
63 Km SE of Perugia (166134 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
96 Km N of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
98 Km N of Tivoli (56533 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
Rev 100 ML 0.8 2019-12-08
17:41:18
42.83 13.05 10 2019-12-08
17:49:23
Sala Sismica INGV-Roma 74439361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-08 17:41:18 ± 0.08
Latitude 42.83 ± 0.00
Longitude 13.05 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74439361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 564
Semi-minor axis of confidence ellipse (meter) 154
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
Circular confidence region, given by single value of horizontal uncertainty (meter) 560
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.45146
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 74439361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-08 17:49:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IT.FIE.HGZ. 2019-12-08T17:42:08.38 3.0 undecidable manual Sn 0.62 0
IV.TOLF.HHZ. 2019-12-08T17:41:37.06 3.0 negative manual P -0.92 0
IV.MF5.EHZ. 2019-12-08T17:41:32.06 0.3 undecidable manual S 61 0.3381 50 0.64 61
IV.CSP1.EHZ. 2019-12-08T17:41:29.83 0.3 undecidable manual S 22 0.2887 50 -0.1 71
IV.CESI.HHZ. 2019-12-08T17:41:27.44 0.3 undecidable manual S 329 0.2104 113 -0.08 72
IV.TERO.HHZ. 2019-12-08T17:41:27.64 0.3 undecidable manual P 116 0.4515 50 -0.34 65
IV.MMO1.EHZ. 2019-12-08T17:41:27.07 0.3 undecidable manual S 70 0.2131 113 -0.55 65
IV.LNSS.HNE. 2019-12-08T17:41:27.91 0.3 undecidable manual S 183 0.2221 112 -0.04 73
IV.FDMO.HHZ. 2019-12-08T17:41:27.39 0.3 undecidable manual S 7 0.2122 113 -0.21 70
IV.MF5.EHZ. 2019-12-08T17:41:26.29 0.3 undecidable manual P 61 0.3381 50 0.25 68
IV.MC2.EHZ. 2019-12-08T17:41:25.08 0.3 undecidable manual S 49 0.1313 125 0.24 71
IV.RM33.EHZ. 2019-12-08T17:41:25.86 0.3 undecidable manual P 159 0.3372 50 -0.16 69
IV.SMA1.EHZ. 2019-12-08T17:41:25.05 0.6 undecidable manual P 133 0.2833 50 -0.05 48
IV.CSP1.EHZ. 2019-12-08T17:41:24.98 0.3 undecidable manual P 22 0.2887 50 -0.2 69
IV.LNSS.HNE. 2019-12-08T17:41:24.18 0.3 undecidable manual P 183 0.2221 112 0.14 71
IV.FDMO.HHZ. 2019-12-08T17:41:23.74 0.3 undecidable manual P 7 0.2122 113 -0.1 72
IT.MTCL.HGE. 2019-12-08T17:41:23.20 0.3 undecidable manual P 347 0.1736 118 0.15 72
IV.CESI.HHZ. 2019-12-08T17:41:23.83 0.3 undecidable manual P 329 0.2104 113 0.04 73
IV.MMO1.EHZ. 2019-12-08T17:41:23.59 0.3 undecidable manual P 70 0.2131 113 -0.26 69
IV.NRCA.HHZ. 2019-12-08T17:41:22.63 0.1 undecidable manual S 79 0.045 154 0.04 100
IV.MC2.EHZ. 2019-12-08T17:41:22.41 0.1 undecidable manual P 49 0.1313 125 0.17 96
IV.NRCA.HHZ. 2019-12-08T17:41:21.19 0.1 undecidable manual P 79 0.045 154 0.25 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.3 0.00030430105 0.1408 AML other m 2019-12-08T17:41:23.39
IV.NRCA.HHN. ML:1.6 0.0006695509 0.1024 AML other m 2019-12-08T17:41:22.74
IV.NRCA.HNE. ML:1.3 0.0002978518 0.1152 AML other m 2019-12-08T17:41:23.39
IV.NRCA.HNN. ML:1.6 0.00062050795 0.0896 AML other m 2019-12-08T17:41:22.69
IV.FDMO.HHE. ML:0.8 4.0284983E-5 0.1408 AML other m 2019-12-08T17:41:27.83
IV.FDMO.HHN. ML:0.9 4.62934895E-5 0.128 AML other m 2019-12-08T17:41:27.84
IV.CESI.HHE. ML:0.5 1.81961345E-5 0.1024 AML other m 2019-12-08T17:41:29.25
IV.CESI.HHN. ML:0.6 2.318422E-5 0.0768 AML other m 2019-12-08T17:41:27.78
IV.CSP1.EHE. ML:0.8 2.7747035E-5 0.448 AML other m 2019-12-08T17:41:30.39
IV.CSP1.EHN. ML:0.8 2.356739E-5 0.1408 AML other m 2019-12-08T17:41:31.28
IV.SMA1.EHE. ML:0.6 1.9931062E-5 0.1792 AML other m 2019-12-08T17:41:30.59
IV.SMA1.EHN. ML:0.7 2.30594795E-5 0.192 AML other m 2019-12-08T17:41:29.76
IV.RM33.EHE. ML:0.6 1.5649458E-5 0.1024 AML other m 2019-12-08T17:41:32.05
IV.RM33.EHN. ML:0.6 1.3551741E-5 0.128 AML other m 2019-12-08T17:41:32.74
IV.TERO.HHN. ML:0.8 1.5452455E-5 0.0768 AML other m 2019-12-08T17:41:35.02
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