Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.2 on date 12-11-2020 and time 03:59:22 (Italy) in region 4 km E Nocera Umbra (PG)

A magnitude ML 0.2 earthquake occured in region: 4 km E Nocera Umbra (PG), on

  • 12-11-2020 02:59:22 (UTC)
  • 12-11-2020 03:59:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.12, 12.84 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.

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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
Nocera Umbra PG 4 5839 5839
Valtopina PG 9 1398 7237
Sefro MC 10 422 7659
Serravalle di Chienti MC 11 1070 8729
Fiuminata MC 11 1402 10131
Gualdo Tadino PG 14 15208 25339
Pioraco MC 14 1134 26473
Muccia MC 17 915 27388
Esanatoglia MC 18 2034 29422
Assisi PG 19 28299 57721
Camerino MC 19 6974 64695
Monte Cavallo MC 19 145 64840
Pieve Torina MC 19 1458 66298
Spello PG 19 8645 74943
Valfabbrica PG 20 3389 78332

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NE of Foligno (57155 inhabitants)
36 Km E of Perugia (166134 inhabitants)
64 Km N of Terni (111501 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
82 Km S of Fano (60888 inhabitants)
87 Km E of Arezzo (99543 inhabitants)
87 Km NW of Teramo (54892 inhabitants)
89 Km S of Pesaro (94582 inhabitants)
97 Km NW of L'Aquila (69753 inhabitants)
98 Km NE of Viterbo (67173 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 0.2 2020-11-12
02:59:22		 43.12 12.84 11 2020-11-12
03:12:42		 Sala Sismica INGV-Roma 84656861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-12 02:59:22 ± 0.04
Latitude 43.12 ± 0.00
Longitude 12.84 ± 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 84656861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 254
Semi-minor axis of confidence ellipse (meter) 220
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 206
Circular confidence region, given by single value of horizontal uncertainty (meter) 250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32735
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.2

Field Value
Value 0.2
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 84656861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-12 03:12:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATSC.EHE. 2020-11-12T02:59:35.06 0.3 undecidable manual S 340 0.3274 50 0.1 72
IV.SSFR.HHE. 2020-11-12T02:59:34.33 0.6 undecidable manual S 353 0.3229 50 -0.5 44
IV.FDMO.HHZ. 2020-11-12T02:59:31.17 0.3 undecidable manual S 113 0.1988 50 0.03 75
IV.ATCC.EHZ. 2020-11-12T02:59:30.10 0.3 undecidable manual S 296 0.1601 122 0.09 74
IV.APEC.HHZ. 2020-11-12T02:59:30.40 3.0 undecidable manual P -0.01 0
IV.SNTG.HHZ. 2020-11-12T02:59:29.89 0.3 undecidable manual S 28 0.1583 122 -0.05 75
IV.ATSC.EHE. 2020-11-12T02:59:29.90 0.6 undecidable manual P 340 0.3274 50 0.09 48
IV.ASSB.HHZ. 2020-11-12T02:59:29.59 0.3 undecidable manual S 241 0.1493 123 -0.08 75
IV.SSFR.HHE. 2020-11-12T02:59:29.73 0.3 undecidable manual P 353 0.3229 50 0 73
IV.MML1.HNZ. 2020-11-12T02:59:28.00 0.3 undecidable manual S 91 0.098 135 -0.11 75
IV.CESI.HHZ. 2020-11-12T02:59:28.62 0.6 undecidable manual S 156 0.1205 129 -0.15 50
IV.ATCC.EHZ. 2020-11-12T02:59:27.02 0.1 undecidable manual P 296 0.1601 122 0.07 100
IV.FDMO.HHZ. 2020-11-12T02:59:27.67 0.1 undecidable manual P 113 0.1988 50 0.07 99
IV.SNTG.HHZ. 2020-11-12T02:59:26.99 0.3 undecidable manual P 28 0.1583 122 0.08 75
IV.ASSB.HHZ. 2020-11-12T02:59:26.67 0.1 undecidable manual P 241 0.1493 123 -0.08 100
IV.CESI.HHZ. 2020-11-12T02:59:26.30 0.6 undecidable manual P 156 0.1205 129 0.07 50
IV.MML1.HNZ. 2020-11-12T02:59:25.97 0.1 undecidable manual P 91 0.098 135 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:-0.3 5.7527485E-6 0.08 AML other m 2020-11-12T02:59:29.69
IV.CESI.HHN. ML:-0.3 5.105153E-6 0.08 AML other m 2020-11-12T02:59:29.07
IV.ASSB.HHE. ML:0.1 1.17774025E-5 0.08 AML other m 2020-11-12T02:59:29.96
IV.ASSB.HHN. ML:0.1 1.0756512E-5 0.0608 AML other m 2020-11-12T02:59:30.46
IV.SNTG.HHE. ML:0.1 8.6519945E-6 0.2 AML other m 2020-11-12T02:59:30.91
IV.SNTG.HHN. ML:0.1 8.579909E-6 0.24 AML other m 2020-11-12T02:59:31.36
IV.ATCC.EHE. ML:0.8 5.244151E-5 0.16 AML other m 2020-11-12T02:59:30.39
IV.ATCC.EHN. ML:0.5 2.440976E-5 0.2 AML other m 2020-11-12T02:59:30.52
IV.FDMO.HHE. ML:0.2 7.6305435E-6 0.0992 AML other m 2020-11-12T02:59:31.36
IV.FDMO.HHN. ML:0.2 1.2395755E-5 0.2016 AML other m 2020-11-12T02:59:31.18
IV.APEC.HHE. ML:0.9 1.6488055E-5 0.0592 AML other m 2020-11-12T02:59:37.73
IV.APEC.HHN. ML:1.1 2.2774945E-5 0.08 AML other m 2020-11-12T02:59:37.52
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