Earthquake with magnitude of ML 1.1 on date 18-09-2019 and time 03:49:27 (Italy) in region 4 km NW Poggiodomo (PG)

A magnitude ML 1.1 earthquake occured in region: 4 km NW Poggiodomo (PG), on

  • 18-09-2019 01:49:27 (UTC)
  • 18-09-2019 03:49:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.74, 12.91 at 12 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 4 117 117
Vallo di Nera PG 5 364 481
Sant'Anatolia di Narco PG 6 564 1045
Scheggino PG 7 461 1506
Cascia PG 9 3217 4723
Cerreto di Spoleto PG 9 1075 5798
Monteleone di Spoleto PG 10 599 6397
Spoleto PG 14 38218 44615
Campello sul Clitunno PG 14 2442 47057
Norcia PG 16 4957 52014
Sellano PG 17 1079 53093
Ferentillo TR 17 1913 55006
Polino TR 18 233 55239
Preci PG 19 724 55963
Montefranco TR 20 1276 57239

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km SE of Foligno (57155 inhabitants)
29 Km NE of Terni (111501 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
59 Km SE of Perugia (166134 inhabitants)
65 Km W of Teramo (54892 inhabitants)
75 Km E of Viterbo (67173 inhabitants)
84 Km N of Guidonia Montecelio (88673 inhabitants)
87 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 1.1 2019-09-18
01:49:27
42.74 12.91 12 2019-09-18
02:08:08
Sala Sismica INGV-Roma 72506701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-18 01:49:27 ± 0.05
Latitude 42.74 ± 0.00
Longitude 12.91 ± 0.00
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72506701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 137
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 142
Circular confidence region, given by single value of horizontal uncertainty (meter) 330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.35433
Number of stations at which the event was observed 11
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 14
Type of magnitude ML
Reference to an origin 72506701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-18 02:08:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTCL.HGZ. 2019-09-18T01:49:41.49 3.0 undecidable manual S 0
IV.MMO1.EHZ. 2019-09-18T01:49:40.32 0.1 undecidable manual S 62 0.3426 92 -0.17 92
IV.ASSB.HHZ. 2019-09-18T01:49:40.76 0.1 undecidable manual S 328 0.3543 92 -0.06 94
IV.FDMO.HHZ. 2019-09-18T01:49:39.85 0.1 undecidable manual S 23 0.322 92 -0.03 95
IV.MOMA.HHE. 2019-09-18T01:49:38.35 0.1 undecidable manual S 284 0.259 93 0.35 90
IV.MTCL.HGZ. 2019-09-18T01:49:38.11 3.0 undecidable manual P 0
IV.CESX.HHE. 2019-09-18T01:49:38.12 0.1 undecidable manual S 241 0.2734 93 -0.3 91
IV.ASSB.HHZ. 2019-09-18T01:49:35.22 0.6 negative manual P 328 0.3543 92 -0.13 46
IV.ARRO.EHZ. 2019-09-18T01:49:35.98 0.1 undecidable manual S 214 0.1943 95 -0.1 96
IV.LNSS.HHZ. 2019-09-18T01:49:35.50 0.3 undecidable manual S 146 0.1673 98 0.22 71
IV.MMO1.EHZ. 2019-09-18T01:49:35.20 0.6 undecidable manual P 62 0.3426 92 0.05 47
IV.CESX.HHE. 2019-09-18T01:49:34.13 0.3 undecidable manual P 241 0.2734 93 0.17 70
IV.FDMO.HHZ. 2019-09-18T01:49:34.72 0.6 positive manual P 23 0.322 92 -0.08 47
IV.MC2.EHZ. 2019-09-18T01:49:33.88 0.3 undecidable manual P 50 0.2653 93 0.06 72
IV.MOMA.HHE. 2019-09-18T01:49:33.74 0.3 undecidable manual P 284 0.259 93 0.02 73
IV.GAVE.EHZ. 2019-09-18T01:49:32.26 0.1 undecidable manual S 195 0.0504 147 -0.09 100
IV.NRCA.HHZ. 2019-09-18T01:49:32.27 0.3 negative manual P 58 0.1745 97 -0.02 73
IV.ARRO.EHZ. 2019-09-18T01:49:32.71 0.1 undecidable manual P 214 0.1943 95 0.1 96
IV.LNSS.HHZ. 2019-09-18T01:49:32.23 1.0 undecidable manual P 146 0.1673 98 0.08 24
IV.GAVE.EHZ. 2019-09-18T01:49:30.59 1.0 undecidable manual P 195 0.0504 147 0.14 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:1.4 0.0003804628 0.14 AML other m 2019-09-18T01:49:33.09
IV.GAVE.EHN. ML:1.7 0.0007169652 0.1 AML other m 2019-09-18T01:49:32.39
IV.LNSS.HHE. ML:0.7 4.2074815E-5 0.14 AML other m 2019-09-18T01:49:42.39
IV.LNSS.HHN. ML:0.8 4.4423325E-5 0.16 AML other m 2019-09-18T01:49:42.52
IV.LNSS.HNE. ML:1.1 9.4531635E-5 0.56 AML other m 2019-09-18T01:49:32.33
IV.LNSS.HNN. ML:1.2 0.0001330406585 0.5704 AML other m 2019-09-18T01:49:35.37
IV.NRCA.HHE. ML:1.5 0.00021657115 0.06 AML other m 2019-09-18T01:49:36.74
IV.NRCA.HHN. ML:1.3 0.00013353205 0.06 AML other m 2019-09-18T01:49:37.34
IV.NRCA.HNE. ML:1.4 0.00018560785 0.08 AML other m 2019-09-18T01:49:36.66
IV.NRCA.HNN. ML:1.3 0.000142673135 0.0696 AML other m 2019-09-18T01:49:37.31
IV.ARRO.EHE. ML:0.5 1.9523345E-5 0.18 AML other m 2019-09-18T01:49:36.37
IV.ARRO.EHN. ML:0.5 1.874275E-5 0.16 AML other m 2019-09-18T01:49:36.95
IV.FDMO.HHE. ML:0.6 1.4681715E-5 0.14 AML other m 2019-09-18T01:49:43.07
IV.FDMO.HHN. ML:0.7 1.8303125E-5 0.18 AML other m 2019-09-18T01:49:42.77
IV.ASSB.HHE. ML:0.2 7.4661875E-6 0.16 AML other m 2019-09-18T01:49:41.66
IV.ASSB.HHN. ML:0.5 8.0692335E-6 0.2 AML other m 2019-09-18T01:49:40.89
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