INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.0 on date 18-01-2019 and time 08:31:20 (Italy) in region 5 km NW Nocera Umbra (PG)

A magnitude ML 1.0 earthquake occured in region: 5 km NW Nocera Umbra (PG), on

  • 18-01-2019 07:31:20 (UTC)
  • 18-01-2019 08:31:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.16, 12.77 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
Nocera Umbra PG 5 5839 5839
Gualdo Tadino PG 8 15208 21047
Valtopina PG 11 1398 22445
Valfabbrica PG 14 3389 25834
Fiuminata MC 14 1402 27236
Sefro MC 15 422 27658
Fossato di Vico PG 15 2840 30498
Assisi PG 16 28299 58797
Serravalle di Chienti MC 18 1070 59867
Pioraco MC 18 1134 61001
Esanatoglia MC 18 2034 63035
Sigillo PG 20 2404 65439
Spello PG 20 8645 74084

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km N of Foligno (57155 inhabitants)
31 Km E of Perugia (166134 inhabitants)
67 Km N of Terni (111501 inhabitants)
79 Km S of Fano (60888 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
80 Km E of Arezzo (99543 inhabitants)
85 Km S of Pesaro (94582 inhabitants)
94 Km NW of Teramo (54892 inhabitants)
98 Km NE of Viterbo (67173 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 1.0 2019-01-18
07:31:20
43.16 12.77 10 2019-01-18
07:38:30
Sala Sismica INGV-Roma 64750481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-18 07:31:20 ± 0.03
Latitude 43.16 ± 0.00
Longitude 12.77 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 64750481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 187
Semi-minor axis of confidence ellipse (meter) 113
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 211
Circular confidence region, given by single value of horizontal uncertainty (meter) 190
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.09803
Epicentral distance of station farthest from the epicenter (degree) 0.34624
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 64750481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-18 07:38:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATVO.HHZ. 2019-01-18T07:31:33.66 0.6 undecidable manual S 311 0.3462 50 0.21 46
IV.SSFR.HHE. 2019-01-18T07:31:31.40 0.6 undecidable manual S 2 0.2788 50 -0.05 48
IV.FDMO.HHZ. 2019-01-18T07:31:31.01 0.6 undecidable manual S 117 0.2617 50 0.07 48
IV.ATFO.HHZ. 2019-01-18T07:31:30.67 0.6 undecidable manual S 326 0.2536 50 -0.04 49
IV.MURB.HHZ. 2019-01-18T07:31:29.39 0.6 undecidable manual S 301 0.2068 114 0.2 48
IV.CESI.HHZ. 2019-01-18T07:31:28.31 0.6 undecidable manual S 147 0.1817 116 0.01 50
IV.ATVO.HHZ. 2019-01-18T07:31:28.26 1.0 positive manual P 311 0.3462 50 0.28 23
IV.SNTG.HHZ. 2019-01-18T07:31:27.50 0.3 undecidable manual S 52 0.1583 120 -0.01 75
IV.MML1.EHE. 2019-01-18T07:31:27.48 0.3 undecidable manual S 106 0.1538 120 0.11 73
IV.FDMO.HHZ. 2019-01-18T07:31:26.47 0.1 undecidable manual P 117 0.2617 50 -0.05 97
IV.ATFO.HHZ. 2019-01-18T07:31:26.35 0.6 undecidable manual P 326 0.2536 50 -0.04 49
IV.FOSV.EHE. 2019-01-18T07:31:26.72 0.6 undecidable manual S 358 0.1376 123 -0.1 49
IV.SSFR.HHE. 2019-01-18T07:31:26.63 0.1 undecidable manual P 2 0.2788 50 -0.19 94
IV.ASSB.HHZ. 2019-01-18T07:31:26.77 0.3 undecidable manual S 215 0.1403 123 -0.15 73
IV.MURB.HHZ. 2019-01-18T07:31:25.55 0.1 undecidable manual P 301 0.2068 114 0.03 98
IV.ATCC.EHZ. 2019-01-18T07:31:25.54 0.6 undecidable manual S 286 0.098 133 -0.09 50
IV.CESI.HHZ. 2019-01-18T07:31:25.27 0.6 undecidable manual P 147 0.1817 116 0.27 47
IV.FOSV.EHE. 2019-01-18T07:31:24.17 0.1 undecidable manual P 358 0.1376 123 0.02 100
IV.ASSB.HHZ. 2019-01-18T07:31:24.07 0.6 positive manual P 215 0.1403 123 -0.13 49
IV.MML1.EHE. 2019-01-18T07:31:24.39 0.1 undecidable manual P 106 0.1538 120 -0.07 99
IV.SNTG.HHZ. 2019-01-18T07:31:24.62 1.0 undecidable manual P 52 0.1583 120 0.07 25
IV.ATCC.EHZ. 2019-01-18T07:31:23.51 0.1 undecidable manual P 286 0.098 133 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHE. ML:1.2 0.00017628335 0.0768 AML other m 2019-01-18T07:31:25.88
IV.ATCC.EHN. ML:1.2 0.00017159695 0.096 AML other m 2019-01-18T07:31:25.68
IV.SNTG.HNE. ML:1.1 0.000109367215 0.5696 AML other m 2019-01-18T07:31:27.49
IV.SNTG.HHN. ML:1 7.495383E-5 0.3584 AML other m 2019-01-18T07:31:28.46
IV.SNTG.HHE. ML:0.7 4.360091E-5 0.2624 AML other m 2019-01-18T07:31:28.01
IV.SNTG.HNN. ML:1.1 0.0001137801 1.0752 AML other m 2019-01-18T07:31:27.74
IV.CESI.HHE. ML:0.4 2.2340769E-5 0.1152 AML other m 2019-01-18T07:31:29.14
IV.CESI.HHN. ML:0.4 1.9167685E-5 0.1216 AML other m 2019-01-18T07:31:29.80
IV.MURB.HHE. ML:1.4 0.00015963825 0.256 AML other m 2019-01-18T07:31:30.16
IV.MURB.HNN. ML:1.4 0.00018213545 0.1408 AML other m 2019-01-18T07:31:30.81
IV.MURB.HHN. ML:1.2 9.3367295E-5 0.1856 AML other m 2019-01-18T07:31:30.84
IV.MURB.HNE. ML:1.5 0.0002167133 0.2624 AML other m 2019-01-18T07:31:30.61
IV.FDMO.HHN. ML:0.5 1.7028296E-5 0.1984 AML other m 2019-01-18T07:31:31.27
IV.FDMO.HHE. ML:0.5 1.27863875E-5 0.1792 AML other m 2019-01-18T07:31:31.16
IV.ATVO.HHE. ML:0.6 1.707918E-5 1.1008 AML other m 2019-01-18T07:31:33.97
IV.ATVO.HHN. ML:0.7 2.092537E-5 0.32 AML other m 2019-01-18T07:31:33.82
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