Earthquake with magnitude of ML 1.4 on date 21-10-2019 and time 04:12:21 (Italy) in region 4 km NW Sant'Anatolia di Narco (PG)

A magnitude ML 1.4 earthquake occured in region: 4 km NW Sant'Anatolia di Narco (PG), on

  • 21-10-2019 02:12:21 (UTC)
  • 21-10-2019 04:12:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.76, 12.8 at 8 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
Sant'Anatolia di Narco PG 4 564 564
Vallo di Nera PG 5 364 928
Spoleto PG 6 38218 39146
Scheggino PG 6 461 39607
Campello sul Clitunno PG 7 2442 42049
Cerreto di Spoleto PG 12 1075 43124
Castel Ritaldi PG 12 3278 46402
Poggiodomo PG 12 117 46519
Trevi PG 14 8469 54988
Ferentillo TR 16 1913 56901
Monteleone di Spoleto PG 18 599 57500
Sellano PG 18 1079 58579
Cascia PG 18 3217 61796
Montefranco TR 18 1276 63072
Montefalco PG 19 5679 68751
Giano dell'Umbria PG 20 3846 72597
Arrone TR 20 2763 75360
Polino TR 20 233 75593

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SE of Foligno (57155 inhabitants)
25 Km NE of Terni (111501 inhabitants)
51 Km SE of Perugia (166134 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
68 Km NE of Viterbo (67173 inhabitants)
75 Km W of Teramo (54892 inhabitants)
85 Km N of Guidonia Montecelio (88673 inhabitants)
89 Km N of Tivoli (56533 inhabitants)
100 Km N of Roma (2864731 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 1.4 2019-10-21
02:12:21
42.76 12.8 8 2019-10-21
02:20:13
Sala Sismica INGV-Roma 73366081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-21 02:12:21 ± 0.06
Latitude 42.76 ± 0.00
Longitude 12.80 ± 0.00
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73366081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 195
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 317
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.53959
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 73366081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-21 02:20:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MIGL.HHZ. 2019-10-21T02:13:52.64 3.0 undecidable manual Sg 12.47 0
GU.RNCA.HHZ. 2019-10-21T02:13:12.91 3.0 undecidable manual Pn 4.95 0
IV.MAON.HHZ. 2019-10-21T02:12:54.83 3.0 undecidable manual S 0.85 0
IV.MCRV.HHZ. 2019-10-21T02:12:45.74 3.0 undecidable manual Pn -4.37 0
IV.MURB.HHZ. 2019-10-21T02:12:41.67 0.3 undecidable manual S 338 0.5396 50 0.65 60
IV.SNTG.HHZ. 2019-10-21T02:12:40.12 0.1 undecidable manual S 12 0.5045 50 0.16 92
IV.ATCC.EHZ. 2019-10-21T02:12:38.42 0.1 undecidable manual S 345 0.4389 50 0.38 89
IV.CSP1.EHZ. 2019-10-21T02:12:38.06 0.1 undecidable manual S 42 0.4443 50 -0.13 94
IV.SMA1.EHZ. 2019-10-21T02:12:37.34 0.3 undecidable manual S 108 0.4155 50 0.01 72
IV.MC2.EHZ. 2019-10-21T02:12:34.68 1.0 undecidable manual S 62 0.3229 50 0.09 24
IV.FDMO.HHZ. 2019-10-21T02:12:34.98 0.1 undecidable manual S 37 0.3471 50 -0.32 92
IT.MTCL.HGE. 2019-10-21T02:12:32.46 0.1 undecidable manual S 32 0.2752 105 -0.43 91
IV.SNTG.HHZ. 2019-10-21T02:12:32.06 0.1 undecidable manual P 12 0.5045 50 -0.28 90
IV.FEMA.HNE. 2019-10-21T02:12:32.70 0.1 undecidable manual S 42 0.2725 105 -0.09 98
IV.MURB.HHZ. 2019-10-21T02:12:32.66 0.1 undecidable manual P 338 0.5396 50 -0.29 89
IV.CESI.HHZ. 2019-10-21T02:12:32.23 0.1 undecidable manual S 18 0.2554 106 0.06 98
IV.CSP1.EHZ. 2019-10-21T02:12:31.29 0.1 undecidable manual P 42 0.4443 50 -0.02 96
IV.LNSS.HHZ. 2019-10-21T02:12:31.73 0.3 undecidable manual S 132 0.2383 107 0.22 72
IT.FOPC.HGZ. 2019-10-21T02:12:31.15 0.1 undecidable manual S 342 0.2194 109 0.3 94
IV.NRCA.HHZ. 2019-10-21T02:12:31.84 0.1 undecidable manual S 73 0.2428 107 0.15 97
IV.CESX.HHZ. 2019-10-21T02:12:30.40 0.3 undecidable manual S 226 0.2176 109 -0.38 70
IV.SMA1.EHZ. 2019-10-21T02:12:30.82 0.1 undecidable manual P 108 0.4155 50 0 97
IV.ATCC.EHZ. 2019-10-21T02:12:30.98 0.1 undecidable manual P 345 0.4389 50 -0.24 91
IT.GNU.HGE. 2019-10-21T02:12:29.24 0.1 undecidable manual S 284 0.1727 113 0.09 100
IV.FDMO.HHZ. 2019-10-21T02:12:29.38 0.1 undecidable manual P 37 0.3471 50 -0.27 93
IV.MOMA.HHZ. 2019-10-21T02:12:29.33 0.1 undecidable manual S 284 0.1727 113 0.17 98
IV.MC2.EHZ. 2019-10-21T02:12:29.68 0.1 undecidable manual P 62 0.3229 50 0.44 90
IV.ARRO.EHZ. 2019-10-21T02:12:29.89 0.3 undecidable manual S 188 0.1835 112 0.36 70
IT.MTCL.HGE. 2019-10-21T02:12:28.19 0.1 undecidable manual P 32 0.2752 105 -0.06 98
IV.FEMA.HNE. 2019-10-21T02:12:28.66 0.1 undecidable manual P 42 0.2725 105 0.47 90
IT.FOPC.HGZ. 2019-10-21T02:12:27.00 0.1 undecidable manual P 342 0.2194 109 -0.07 99
IV.NRCA.HHZ. 2019-10-21T02:12:27.51 0.1 undecidable manual P 73 0.2428 107 -0.05 99
IV.CESI.HHZ. 2019-10-21T02:12:27.84 0.1 undecidable manual P 18 0.2554 106 0 100
IV.LNSS.HHZ. 2019-10-21T02:12:27.39 0.1 undecidable manual P 132 0.2383 107 -0.07 99
IV.MOMA.HHZ. 2019-10-21T02:12:26.17 0.1 undecidable manual P 284 0.1727 113 0.07 100
IV.ARRO.EHZ. 2019-10-21T02:12:26.37 0.1 undecidable manual P 188 0.1835 112 0.05 100
IV.CESX.HHZ. 2019-10-21T02:12:26.98 0.1 undecidable manual P 226 0.2176 109 -0.05 99
IT.GNU.HGE. 2019-10-21T02:12:25.44 0.1 undecidable manual P 284 0.1727 113 -0.65 86
IV.SAMA.HHZ. 2019-10-21T02:12:23.22 3.0 undecidable manual S -9.96 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHE. ML:1.6 0.0003025 0.14 AML other m 2019-10-21T02:12:29.58
IV.MOMA.HHN. ML:1.4 0.0001885 0.44 AML other m 2019-10-21T02:12:29.52
IV.ARRO.EHE. ML:1.4 0.000183 0.24 AML other m 2019-10-21T02:12:29.79
IV.ARRO.EHN. ML:1.2 0.000115 1.82 AML other m 2019-10-21T02:12:30.06
IV.CESX.HHE. ML:1.2 0.0001014 0.34 AML other m 2019-10-21T02:12:31.44
IV.LNSS.HHN. ML:1.5 0.0001635 0.28 AML other m 2019-10-21T02:12:31.78
IV.CESX.HHN. ML:1.2 0.00010205 0.42 AML other m 2019-10-21T02:12:32.14
IV.NRCA.HHE. ML:1.3 0.000113 1.54 AML other m 2019-10-21T02:12:32.18
IV.CESI.HNN. ML:2 0.000505 0.38 AML other m 2019-10-21T02:12:32.29
IV.CESI.HHN. ML:2 0.000473 0.38 AML other m 2019-10-21T02:12:32.29
IV.NRCA.HHN. ML:1.3 0.0001085 0.1 AML other m 2019-10-21T02:12:32.34
IV.LNSS.HHE. ML:1.5 0.0001835 0.46 AML other m 2019-10-21T02:12:32.38
IV.CESI.HHE. ML:1.3 0.000116 0.08 AML other m 2019-10-21T02:12:32.82
IV.SMA1.EHE. ML:1.3 5.56E-5 1.54 AML other m 2019-10-21T02:12:38.07
IV.ATCC.EHN. ML:1.5 8.42E-5 0.68 AML other m 2019-10-21T02:12:38.77
IV.ATCC.EHE. ML:1.6 0.0001063 1.6 AML other m 2019-10-21T02:12:38.87
IV.SMA1.EHN. ML:1.2 4.545E-5 0.4 AML other m 2019-10-21T02:12:40.47
IV.MURB.HHE. ML:1.8 0.0001265 1.16 AML other m 2019-10-21T02:12:42.27
IV.MURB.HHN. ML:1.7 0.0001046 0.94 AML other m 2019-10-21T02:12:43.98
IV.CESI.HNE. ML:1.5 0.00017835 1.02 AML other m 2019-10-21T02:12:53.82
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