Earthquake with magnitude of ML 1.1 on date 18-11-2020 and time 15:43:50 (Italy) in region 5 km E Valfabbrica (PG)

A magnitude ML 1.1 earthquake occured in region: 5 km E Valfabbrica (PG), on

  • 18-11-2020 14:43:50 (UTC)
  • 18-11-2020 15:43:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.14, 12.66 at 9 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
Valfabbrica PG 5 3389 3389
Assisi PG 8 28299 31688
Nocera Umbra PG 11 5839 37527
Valtopina PG 12 1398 38925
Bastia Umbra PG 12 21874 60799
Gualdo Tadino PG 15 15208 76007
Spello PG 16 8645 84652
Cannara PG 17 4305 88957
Fossato di Vico PG 19 2840 91797
Bettona PG 20 4367 96164

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km N of Foligno (57155 inhabitants)
22 Km E of Perugia (166134 inhabitants)
64 Km N of Terni (111501 inhabitants)
73 Km SE of Arezzo (99543 inhabitants)
84 Km SW of Fano (60888 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
88 Km S of Pesaro (94582 inhabitants)
92 Km NE of Viterbo (67173 inhabitants)
100 Km NW of Teramo (54892 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 1.1 2020-11-18
14:43:50
43.14 12.66 9 2020-11-18
14:58:15
Sala Sismica INGV-Roma 84827491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-18 14:43:50 ± 0.07
Latitude 43.14 ± 0.00
Longitude 12.66 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84827491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 359
Semi-minor axis of confidence ellipse (meter) 119
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
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 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.04946
Epicentral distance of station farthest from the epicenter (degree) 0.45865
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 84827491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-18 14:58:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MGAB.HHE. 2020-11-18T14:44:07.73 0.6 undecidable manual S 241 0.4587 50 0.17 47
IV.SSFR.HNZ. 2020-11-18T14:44:03.00 0.3 undecidable manual S 17 0.3112 50 -0.19 72
IV.ATSC.EHZ. 2020-11-18T14:44:02.42 0.3 undecidable manual S 4 0.2869 105 0 75
IV.MGAB.HHE. 2020-11-18T14:44:01.25 1.0 undecidable manual P 241 0.4587 50 0.7 20
IV.SNTG.HHZ. 2020-11-18T14:44:00.73 0.3 undecidable manual S 60 0.2356 108 0.2 73
IV.MML1.HNZ. 2020-11-18T14:44:00.38 0.3 undecidable manual S 96 0.2284 109 0.11 74
IV.ATLO.EHZ. 2020-11-18T14:44:00.97 0.3 undecidable manual S 314 0.2554 107 -0.3 71
IV.CESI.HHZ. 2020-11-18T14:44:00.07 0.3 undecidable manual S 127 0.2221 109 0.02 76
IV.MURB.HHZ. 2020-11-18T14:43:58.34 0.3 undecidable manual S 322 0.1592 116 0.53 69
IV.SSFR.HNZ. 2020-11-18T14:43:57.83 0.3 undecidable manual P 17 0.3112 50 -0.2 72
IV.ATSC.EHZ. 2020-11-18T14:43:57.51 0.6 undecidable manual P 4 0.2869 105 -0.07 49
IV.ATLO.EHZ. 2020-11-18T14:43:56.73 0.3 undecidable manual P 314 0.2554 107 -0.19 73
IV.CESI.HHZ. 2020-11-18T14:43:56.16 1.0 undecidable manual P 127 0.2221 109 -0.05 25
IV.SNTG.HHZ. 2020-11-18T14:43:56.43 0.1 undecidable manual P 60 0.2356 108 -0.06 100
IV.MML1.HNZ. 2020-11-18T14:43:56.37 0.3 undecidable manual P 96 0.2284 109 0.03 76
IV.MURB.HHZ. 2020-11-18T14:43:55.13 0.3 undecidable manual P 322 0.1592 116 0.21 74
IV.ASSB.HHZ. 2020-11-18T14:43:55.45 0.3 undecidable manual S 181 0.0944 129 -0.25 74
IV.ATCC.EHZ. 2020-11-18T14:43:54.35 0.3 undecidable manual S 343 0.0495 147 -0.19 76
IV.ATCC.EHZ. 2020-11-18T14:43:53.08 0.3 undecidable manual P 343 0.0495 147 0.05 78
IV.ASSB.HHZ. 2020-11-18T14:43:53.72 0.3 undecidable manual P 181 0.0944 129 0.02 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHE. ML:1.6 0.0007190443 0.0832 AML other m 2020-11-18T14:43:54.47
IV.ATCC.EHN. ML:1.4 0.00046417635 0.0832 AML other m 2020-11-18T14:43:54.43
IV.ASSB.HHE. ML:1.2 0.0002370712 0.096 AML other m 2020-11-18T14:43:55.58
IV.ASSB.HHN. ML:1.3 0.0002904774 0.0832 AML other m 2020-11-18T14:43:55.56
IV.MURB.HHE. ML:1.3 0.00017377025 0.1792 AML other m 2020-11-18T14:43:59.14
IV.MURB.HHN. ML:1 8.664757E-5 0.1408 AML other m 2020-11-18T14:43:59.46
IV.MURB.HNE. ML:1.2 0.00014368083 0.1728 AML other m 2020-11-18T14:43:59.14
IV.MURB.HNN. ML:1.1 0.00010853206 0.2496 AML other m 2020-11-18T14:43:58.86
IV.CESI.HHE. ML:0.5 2.093095E-5 0.1024 AML other m 2020-11-18T14:44:01.08
IV.CESI.HHN. ML:0.5 1.9480171E-5 0.1408 AML other m 2020-11-18T14:44:00.61
IV.SNTG.HHE. ML:0.5 1.7637055E-5 0.16 AML other m 2020-11-18T14:44:01.09
IV.SNTG.HHN. ML:0.4 1.313402665E-5 0.1408 AML other m 2020-11-18T14:44:03.02
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