Earthquake with magnitude of ML 0.8 on date 31-12-2019 and time 09:45:31 (Italy) in region 6 km E Nocera Umbra (PG)

A magnitude ML 0.8 earthquake occured in region: 6 km E Nocera Umbra (PG), on

  • 31-12-2019 08:45:31 (UTC)
  • 31-12-2019 09:45:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.11, 12.86 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 6 5839 5839
Sefro MC 8 422 6261
Serravalle di Chienti MC 9 1070 7331
Fiuminata MC 10 1402 8733
Valtopina PG 10 1398 10131
Pioraco MC 13 1134 11265
Gualdo Tadino PG 15 15208 26473
Muccia MC 15 915 27388
Camerino MC 17 6974 34362
Esanatoglia MC 17 2034 36396
Pieve Torina MC 17 1458 37854
Monte Cavallo MC 17 145 37999
Pievebovigliana MC 19 866 38865
Castelraimondo MC 19 4587 43452

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Foligno (57155 inhabitants)
38 Km E of Perugia (166134 inhabitants)
64 Km N of Terni (111501 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
82 Km S of Fano (60888 inhabitants)
85 Km NW of Teramo (54892 inhabitants)
89 Km E of Arezzo (99543 inhabitants)
89 Km S of Pesaro (94582 inhabitants)
95 Km NW of L'Aquila (69753 inhabitants)
99 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 0.8 2019-12-31
08:45:31
43.11 12.86 10 2019-12-31
08:50:42
Sala Sismica INGV-Roma 75137261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-31 08:45:31 ± 0.03
Latitude 43.11 ± 0.00
Longitude 12.86 ± 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 75137261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 145
Semi-minor axis of confidence ellipse (meter) 143
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 222
Circular confidence region, given by single value of horizontal uncertainty (meter) 140
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27879
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 75137261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-31 08:50:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PE3.EHZ. 2019-12-31T08:45:45.28 3.0 positive manual P 0.51 0
IV.EL6.EHZ. 2019-12-31T08:45:42.62 0.3 undecidable manual S 39 0.2788 50 0.1 72
IV.CSP1.EHZ. 2019-12-31T08:45:41.75 0.3 undecidable manual S 95 0.2509 50 0.05 74
IV.FOSV.EHZ. 2019-12-31T08:45:40.07 0.3 undecidable manual S 338 0.197 115 0.08 74
IV.ATCC.EHZ. 2019-12-31T08:45:39.45 0.3 undecidable manual S 294 0.1772 117 0.12 73
IV.FDMO.HHZ. 2019-12-31T08:45:39.32 0.3 undecidable manual S 115 0.1808 117 -0.13 73
IV.SNTG.HHZ. 2019-12-31T08:45:38.37 0.3 undecidable manual S 22 0.1538 121 -0.16 73
IV.ASSB.HHZ. 2019-12-31T08:45:38.72 0.3 undecidable manual S 245 0.1637 119 -0.14 73
IV.CSP1.EHZ. 2019-12-31T08:45:37.36 0.3 undecidable manual P 95 0.2509 50 -0.08 73
IV.CESI.HHZ. 2019-12-31T08:45:37.19 0.3 undecidable manual S 164 0.1115 130 -0.01 76
IV.EL6.EHZ. 2019-12-31T08:45:37.84 0.3 undecidable manual P 39 0.2788 50 -0.07 73
IV.FOSV.EHZ. 2019-12-31T08:45:36.36 0.3 undecidable manual P 338 0.197 115 -0.09 74
IV.MML1.HNZ. 2019-12-31T08:45:36.42 0.3 undecidable manual S 89 0.08 139 0.09 75
IV.ATCC.EHZ. 2019-12-31T08:45:36.10 0.1 undecidable manual P 294 0.1772 117 0.03 100
IV.FDMO.HHZ. 2019-12-31T08:45:36.13 0.3 undecidable manual P 115 0.1808 117 -0.01 75
IV.SNTG.HHZ. 2019-12-31T08:45:35.56 0.1 undecidable manual P 22 0.1538 121 -0.05 100
IV.ASSB.HHZ. 2019-12-31T08:45:35.77 0.1 undecidable manual P 245 0.1637 119 -0.03 100
IV.MML1.HNZ. 2019-12-31T08:45:34.48 0.1 undecidable manual P 89 0.08 139 0.14 99
IV.CESI.HHZ. 2019-12-31T08:45:34.95 0.1 undecidable manual P 164 0.1115 130 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.8 7.4345425E-5 0.1408 AML other m 2019-12-31T08:45:37.39
IV.CESI.HHN. ML:0.6 3.7779215E-5 0.1792 AML other m 2019-12-31T08:45:37.20
IV.SNTG.HHE. ML:0.6 3.1326057E-5 0.0576 AML other m 2019-12-31T08:45:38.84
IV.SNTG.HHN. ML:0.6 2.87469E-5 0.1024 AML other m 2019-12-31T08:45:38.58
IV.SNTG.HNE. ML:1 8.9851687E-5 1.2544 AML other m 2019-12-31T08:45:38.74
IV.SNTG.HNN. ML:1.2 0.00013615695 0.5888 AML other m 2019-12-31T08:45:37.57
IV.ASSB.HHE. ML:0.8 4.6523705E-5 0.16 AML other m 2019-12-31T08:45:39.04
IV.ASSB.HHN. ML:0.8 4.967596E-5 0.0832 AML other m 2019-12-31T08:45:38.88
IV.ATCC.EHE. ML:0.9 6.4386766E-5 0.16 AML other m 2019-12-31T08:45:39.65
IV.ATCC.EHN. ML:0.8 5.1660165E-5 0.1408 AML other m 2019-12-31T08:45:39.71
IV.FDMO.HHE. ML:0.7 3.7953015E-5 0.2176 AML other m 2019-12-31T08:45:39.30
IV.FDMO.HHN. ML:1.1 9.352446E-5 0.16 AML other m 2019-12-31T08:45:39.47
IV.FOSV.EHE. ML:0.4 1.5280725E-5 0.1216 AML other m 2019-12-31T08:45:40.28
IV.FOSV.EHN. ML:0.4 1.34759905E-5 0.16 AML other m 2019-12-31T08:45:40.53
IV.CSP1.EHE. ML:0.9 4.4267195E-5 0.1408 AML other m 2019-12-31T08:45:41.96
IV.CSP1.EHN. ML:0.8 3.3482585E-5 0.32 AML other m 2019-12-31T08:45:41.93
IV.EL6.EHE. ML:1.4 0.00011014356 1.5616 AML other m 2019-12-31T08:45:41.01
IV.EL6.EHN. ML:1.2 6.6635185E-5 0.1984 AML other m 2019-12-31T08:45:42.80
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