Earthquake with magnitude of ML 0.9 on date 11-12-2019 and time 17:31:28 (Italy) in region 9 km SE Valtopina (PG)

A magnitude ML 0.9 earthquake occured in region: 9 km SE Valtopina (PG), on

  • 11-12-2019 16:31:28 (UTC)
  • 11-12-2019 17:31:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.99, 12.81 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Valtopina PG 9 1398 1398
Foligno PG 9 57155 58553
Spello PG 11 8645 67198
Nocera Umbra PG 13 5839 73037
Trevi PG 14 8469 81506
Serravalle di Chienti MC 15 1070 82576
Sellano PG 15 1079 83655
Monte Cavallo MC 16 145 83800
Montefalco PG 17 5679 89479
Bevagna PG 17 5081 94560
Assisi PG 18 28299 122859
Cannara PG 18 4305 127164
Campello sul Clitunno PG 19 2442 129606

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km E of Foligno (57155 inhabitants)
36 Km E of Perugia (166134 inhabitants)
50 Km N of Terni (111501 inhabitants)
82 Km W of Teramo (54892 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
92 Km SE of Arezzo (99543 inhabitants)
96 Km S of Fano (60888 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 0.9 2019-12-11
16:31:28
42.99 12.81 11 2019-12-11
16:42:52
Sala Sismica INGV-Roma 74556981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-11 16:31:28 ± 0.04
Latitude 42.99 ± 0.00
Longitude 12.81 ± 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 74556981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 201
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 347
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27519
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 74556981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-11 16:42:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTGR.HHZ. 2019-12-11T16:32:57.67 3.0 undecidable manual Pg 14.58 0
IV.NDIM.HNZ. 2019-12-11T16:32:44.81 3.0 undecidable manual Sg 2.94 0
IV.TDS.HHZ. 2019-12-11T16:32:39.59 3.0 negative manual Pg 7.39 0
IV.IFOR.HHZ. 2019-12-11T16:32:28.50 3.0 undecidable manual Sn -7.99 0
GU.POPM.HHZ. 2019-12-11T16:32:27.78 3.0 undecidable manual Sg -0.59 0
IV.VULT.HHZ. 2019-12-11T16:32:12.51 3.0 undecidable manual Pn -1.51 0
IV.RCAV.EHZ. 2019-12-11T16:32:02.76 3.0 undecidable manual S -1.51 0
IV.SRES.HHZ. 2019-12-11T16:31:52.22 3.0 undecidable manual S -0.34 0
IV.NRCA.HHZ. 2019-12-11T16:31:38.67 0.1 undecidable manual S 125 0.2752 50 -0.3 92
IV.MOMA.HHZ. 2019-12-11T16:31:38.43 0.1 undecidable manual S 223 0.2563 50 0.02 98
IV.FDMO.HHZ. 2019-12-11T16:31:36.97 0.3 undecidable manual S 78 0.2095 50 -0.06 74
IV.FEMA.HNE. 2019-12-11T16:31:36.24 0.1 undecidable manual S 100 0.1799 50 0.09 98
IV.SNTG.HHZ. 2019-12-11T16:31:35.09 3.0 negative manual P -2.4 0
IV.MML1.EHZ. 2019-12-11T16:31:35.84 0.1 undecidable manual S 45 0.1709 50 -0.04 99
IV.NRCA.HHZ. 2019-12-11T16:31:34.31 1.0 positive manual P 125 0.2752 50 -0.17 24
IV.ASSB.HHZ. 2019-12-11T16:31:34.15 0.3 undecidable manual S 295 0.1196 130 -0.17 73
IV.MOMA.HHZ. 2019-12-11T16:31:34.32 0.1 undecidable manual P 223 0.2563 50 0.17 95
IT.GNU.HGZ. 2019-12-11T16:31:34.48 1.0 undecidable manual P 223 0.2563 50 0.33 23
IT.MTCL.HGE. 2019-12-11T16:31:34.88 0.1 undecidable manual S 89 0.1403 125 -0.08 99
IV.FDMO.HHZ. 2019-12-11T16:31:33.38 0.6 positive manual P 78 0.2095 50 0.02 49
IV.CESI.HHZ. 2019-12-11T16:31:33.18 0.1 undecidable manual S 80 0.0719 144 0.12 99
IV.MML1.EHZ. 2019-12-11T16:31:32.69 0.1 undecidable manual P 45 0.1709 50 0 100
IT.MTCL.HGE. 2019-12-11T16:31:32.26 0.3 undecidable manual P 89 0.1403 125 0.1 74
IV.FEMA.HNE. 2019-12-11T16:31:32.97 0.1 undecidable manual P 100 0.1799 50 0.12 97
IV.CESI.HHZ. 2019-12-11T16:31:31.19 0.6 undecidable manual P 80 0.0719 144 0.13 50
IV.ASSB.HHZ. 2019-12-11T16:31:31.85 0.3 positive manual P 295 0.1196 130 0.06 75
IT.FOPC.HGN. 2019-12-11T16:31:30.90 0.3 undecidable manual P 254 0.0791 141 -0.26 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1 0.0001384285 0.0512 AML other m 2019-12-11T16:31:33.33
IV.CESI.HHN. ML:0.7 6.819926E-5 0.1152 AML other m 2019-12-11T16:31:33.42
IV.CESI.HNE. ML:1 0.000118896385 0.0512 AML other m 2019-12-11T16:31:33.36
IV.ASSB.HHE. ML:0.9 7.437456E-5 0.1536 AML other m 2019-12-11T16:31:34.66
IV.ASSB.HHN. ML:1 0.000100562405 0.1024 AML other m 2019-12-11T16:31:34.40
IV.FDMO.HHN. ML:0.6 2.41243135E-5 0.2048 AML other m 2019-12-11T16:31:37.23
IV.NRCA.HHE. ML:0.7 2.5469485E-5 0.1024 AML other m 2019-12-11T16:31:40.20
IV.NRCA.HHN. ML:0.9 3.454624165E-5 0.1024 AML other m 2019-12-11T16:31:38.86
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