Earthquake with magnitude of ML 1.1 on date 18-11-2020 and time 01:50:43 (Italy) in region 3 km SE Poggiodomo (PG)

A magnitude ML 1.1 earthquake occured in region: 3 km SE Poggiodomo (PG), on

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

and geographic coordinates (lat, lon) 42.69, 12.96 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
Poggiodomo PG 3 117 117
Monteleone di Spoleto PG 4 599 716
Cascia PG 5 3217 3933
Scheggino PG 11 461 4394
Sant'Anatolia di Narco PG 11 564 4958
Vallo di Nera PG 12 364 5322
Leonessa RI 14 2435 7757
Cerreto di Spoleto PG 15 1075 8832
Polino TR 15 233 9065
Ferentillo TR 16 1913 10978
Norcia PG 16 4957 15935
Cittareale RI 18 482 16417
Spoleto PG 19 38218 54635
Montefranco TR 19 1276 55911
Arrone TR 20 2763 58674

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Terni (111501 inhabitants)
36 Km SE of Foligno (57155 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
61 Km W of Teramo (54892 inhabitants)
66 Km SE of Perugia (166134 inhabitants)
76 Km E of Viterbo (67173 inhabitants)
79 Km N of Guidonia Montecelio (88673 inhabitants)
82 Km N of Tivoli (56533 inhabitants)
97 Km NE of Roma (2864731 inhabitants)
99 Km W of Montesilvano (53738 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
00:50:43
42.69 12.96 11 2020-11-18
01:04:13
Sala Sismica INGV-Roma 84814771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-18 00:50:43 ± 0.04
Latitude 42.69 ± 0.00
Longitude 12.96 ± 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 84814771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 290
Semi-minor axis of confidence ellipse (meter) 233
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 181
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.41459
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 84814771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-18 01:04:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASSB.HHN. 2020-11-18T00:50:58.29 0.3 undecidable manual S 328 0.4146 50 -0.09 71
IV.MMO1.EHZ. 2020-11-18T00:50:56.24 0.3 undecidable manual S 52 0.3399 50 0.06 73
IV.MTRA.EHN. 2020-11-18T00:50:56.16 0.3 undecidable manual S 78 0.3274 50 0.36 69
IV.FDMO.HHZ. 2020-11-18T00:50:56.72 0.3 undecidable manual S 15 0.357 50 0.03 73
IV.CESI.HHE. 2020-11-18T00:50:55.55 0.3 undecidable manual S 353 0.3157 50 0.09 73
IV.MOMA.HHE. 2020-11-18T00:50:55.27 0.3 undecidable manual S 292 0.3076 50 0.07 73
IT.MTCL.HGZ. 2020-11-18T00:50:55.24 0.3 undecidable manual S 6 0.304 50 0.14 72
IT.GNU.HGN. 2020-11-18T00:50:55.37 0.3 undecidable manual S 292 0.3067 50 0.17 72
IV.FEMA.HNZ. 2020-11-18T00:50:54.39 0.3 undecidable manual S 14 0.2788 50 0.04 74
IV.SMA1.EHE. 2020-11-18T00:50:54.51 0.3 undecidable manual S 102 0.2824 50 0.03 74
IV.CESX.HHZ. 2020-11-18T00:50:54.32 0.3 undecidable manual S 253 0.286 50 -0.26 71
IV.T1299.EHE. 2020-11-18T00:50:53.26 0.3 undecidable manual S 103 0.2437 50 -0.07 74
IV.ASSB.HHN. 2020-11-18T00:50:52.48 0.3 undecidable manual P 328 0.4146 50 0.39 67
IV.NRCA.HHZ. 2020-11-18T00:50:51.04 0.3 undecidable manual S 39 0.1817 117 -0.35 71
IT.GNU.HGN. 2020-11-18T00:50:50.07 1.0 undecidable manual P 292 0.3067 50 -0.18 24
IV.CESX.HHZ. 2020-11-18T00:50:50.05 0.1 undecidable manual P 253 0.286 50 0.15 96
IV.CESI.HHE. 2020-11-18T00:50:50.28 0.1 undecidable manual P 353 0.3157 50 -0.13 96
IV.MTRA.EHN. 2020-11-18T00:50:50.34 1.0 undecidable manual P 78 0.3274 50 -0.26 23
IV.MMO1.EHZ. 2020-11-18T00:50:50.57 0.1 undecidable manual P 52 0.3399 50 -0.25 93
IV.ARRO.EHZ. 2020-11-18T00:50:50.93 0.3 undecidable manual S 232 0.1817 117 -0.44 69
IV.FDMO.HHZ. 2020-11-18T00:50:50.94 0.1 undecidable manual P 15 0.357 50 -0.18 95
IV.MOMA.HHE. 2020-11-18T00:50:50.11 0.1 undecidable manual P 292 0.3076 50 -0.15 96
IT.MTCL.HGZ. 2020-11-18T00:50:50.18 1.0 undecidable manual P 6 0.304 50 -0.02 25
IV.T1299.EHE. 2020-11-18T00:50:49.12 0.1 undecidable manual P 103 0.2437 50 -0.05 99
IV.FEMA.HNZ. 2020-11-18T00:50:49.67 1.0 undecidable manual P 14 0.2788 50 -0.1 24
IV.LNSS.HHZ. 2020-11-18T00:50:49.02 0.3 undecidable manual S 146 0.1061 131 0.04 77
IV.SMA1.EHE. 2020-11-18T00:50:49.94 0.1 undecidable manual P 102 0.2824 50 0.1 98
IV.ARRO.EHZ. 2020-11-18T00:50:47.97 0.1 undecidable manual P 232 0.1817 117 -0.08 100
IV.NRCA.HHZ. 2020-11-18T00:50:47.90 0.1 undecidable manual P 39 0.1817 117 -0.16 98
IV.GAVE.EHZ. 2020-11-18T00:50:47.87 0.3 undecidable manual S 271 0.0477 153 0.3 73
IV.GAVE.EHZ. 2020-11-18T00:50:46.20 0.1 undecidable manual P 271 0.0477 153 0.35 97
IV.LNSS.HHZ. 2020-11-18T00:50:46.81 0.1 undecidable manual P 146 0.1061 131 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.5 0.0005425 0.32 AML other m 2020-11-18T00:50:48.07
IV.GAVE.EHE. ML:1.4 0.0004395 0.88 AML other m 2020-11-18T00:50:48.50
IV.LNSS.HHE. ML:1 0.000107 1.1 AML other m 2020-11-18T00:50:50.71
IV.LNSS.HHN. ML:1.1 0.000137 0.54 AML other m 2020-11-18T00:50:50.76
IV.NRCA.HHE. ML:1.2 0.00010345 1.08 AML other m 2020-11-18T00:50:52.60
IV.NRCA.HHN. ML:1.1 9.34E-5 1.22 AML other m 2020-11-18T00:50:52.95
IV.GAVE.HNE. ML:1.4 0.0004096025 0.14 AML other m 2020-11-18T00:50:48.23
IV.GAVE.HNN. ML:1.1 0.0001813583 0.71 AML other m 2020-11-18T00:50:47.62
IV.LNSS.HNE. ML:1.1 0.000129920585 1.16 AML other m 2020-11-18T00:50:50.16
IV.LNSS.HNN. ML:1 0.000120724705 0.18 AML other m 2020-11-18T00:50:49.57
IV.ARRO.EHE. ML:0.8 4.49241E-5 0.16 AML other m 2020-11-18T00:50:51.31
IV.ARRO.EHN. ML:0.8 5.1412085E-5 0.16 AML other m 2020-11-18T00:50:52.14
IV.CESX.HHE. ML:0.5 1.3590944E-5 0.22 AML other m 2020-11-18T00:50:55.09
IV.FDMO.HHE. ML:1 3.3725905E-5 0.2 AML other m 2020-11-18T00:50:57.39
IV.FDMO.HHN. ML:0.9 2.3866546E-5 0.2 AML other m 2020-11-18T00:50:57.71
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