Earthquake with magnitude of ML 0.8 on date 04-12-2020 and time 23:07:47 (Italy) in region 6 km NE Nocera Umbra (PG)

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

  • 04-12-2020 22:07:47 (UTC)
  • 04-12-2020 23:07:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.16, 12.83 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
Nocera Umbra PG 6 5839 5839
Gualdo Tadino PG 9 15208 21047
Fiuminata MC 9 1402 22449
Sefro MC 10 422 22871
Valtopina PG 13 1398 24269
Pioraco MC 13 1134 25403
Serravalle di Chienti MC 14 1070 26473
Esanatoglia MC 14 2034 28507
Fossato di Vico PG 16 2840 31347
Matelica MC 18 9981 41328
Valfabbrica PG 19 3389 44717
Muccia MC 19 915 45632
Castelraimondo MC 19 4587 50219
Camerino MC 20 6974 57193
Assisi PG 20 28299 85492

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Foligno (57155 inhabitants)
36 Km E of Perugia (166134 inhabitants)
68 Km N of Terni (111501 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
78 Km S of Fano (60888 inhabitants)
84 Km S of Pesaro (94582 inhabitants)
84 Km E of Arezzo (99543 inhabitants)
90 Km NW of Teramo (54892 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
Reviewed
Rev100
ML 0.8 2020-12-04
22:07:47
43.16 12.83 11 2020-12-04
22:18:16
Sala Sismica INGV-Roma 85203401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-04 22:07:47 ± 0.04
Latitude 43.16 ± 0.00
Longitude 12.83 ± 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 85203401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 233
Semi-minor axis of confidence ellipse (meter) 190
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 34
Circular confidence region, given by single value of horizontal uncertainty (meter) 230
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.28149
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 85203401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-04 22:18:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTGR.HHZ. 2020-12-04T22:09:15.89 3.0 undecidable manual Pg 14.87 0
ST.CARE.EHZ. 2020-12-04T22:09:05.26 3.0 undecidable manual Sg 0.16 0
IV.APPI.EHZ. 2020-12-04T22:09:02.85 3.0 undecidable manual Sg -0.03 0
CH.BERNI.HHZ. 2020-12-04T22:08:52.22 3.0 undecidable manual Sn -9.99 0
OT.TAR1.HHZ. 2020-12-04T22:08:49.71 3.0 negative manual Pn 2.89 0
OT.OT13.EHZ. 2020-12-04T22:08:30.88 3.0 undecidable manual Pn 4.49 0
IV.BARO.EHZ. 2020-12-04T22:08:21.06 3.0 undecidable manual Sn 0.47 0
IV.CAFI.HHZ. 2020-12-04T22:08:02.17 3.0 undecidable manual Sn -0.26 0
IV.CSP1.EHZ. 2020-12-04T22:07:58.73 0.3 undecidable manual S 104 0.2815 50 0.2 70
IV.MURB.HHZ. 2020-12-04T22:07:57.65 0.3 undecidable manual S 295 0.2455 50 0.19 70
IT.MTCL.HGN. 2020-12-04T22:07:56.21 0.6 undecidable manual S 143 0.2068 50 -0.1 48
IV.FDMO.HHZ. 2020-12-04T22:07:56.67 0.1 undecidable manual S 123 0.2248 50 -0.16 95
IV.ASSB.HHZ. 2020-12-04T22:07:55.09 0.3 undecidable manual S 227 0.1709 119 -0.08 73
IV.FOSV.EHZ. 2020-12-04T22:07:54.11 0.3 undecidable manual S 340 0.1439 124 -0.18 72
IV.CESI.HHZ. 2020-12-04T22:07:54.75 0.3 undecidable manual S 161 0.1637 120 -0.18 72
IV.SNTG.HHZ. 2020-12-04T22:07:53.51 0.1 undecidable manual S 40 0.125 127 -0.17 97
IV.MURB.HHZ. 2020-12-04T22:07:53.29 0.6 undecidable manual P 295 0.2455 50 -0.01 49
IV.MML1.HNE. 2020-12-04T22:07:53.42 0.3 undecidable manual S 114 0.1133 130 0.09 74
IV.CSP1.EHZ. 2020-12-04T22:07:53.93 0.1 undecidable manual P 104 0.2815 50 0.01 97
IV.FDMO.HHZ. 2020-12-04T22:07:52.83 0.1 undecidable manual P 123 0.2248 50 -0.11 96
IV.FIU1.HNN. 2020-12-04T22:07:52.33 0.3 undecidable manual S 69 0.0791 140 -0.09 74
IV.ASSB.HHZ. 2020-12-04T22:07:52.05 0.3 undecidable manual P 227 0.1709 119 0.06 74
IV.ARCI.HHZ. 2020-12-04T22:07:52.98 3.0 undecidable manual P -6.17 0
IV.SEF1.HNZ. 2020-12-04T22:07:52.69 0.3 undecidable manual S 98 0.0863 138 0.09 74
IT.MTCL.HGN. 2020-12-04T22:07:52.57 0.1 undecidable manual P 143 0.2068 50 -0.07 97
IV.SNTG.HHZ. 2020-12-04T22:07:51.12 0.1 undecidable manual P 40 0.125 127 0 100
IV.MML1.HNE. 2020-12-04T22:07:51.07 0.1 undecidable manual P 114 0.1133 130 0.15 97
IV.FOSV.EHZ. 2020-12-04T22:07:51.48 0.1 undecidable manual P 340 0.1439 124 0 100
IV.CESI.HHZ. 2020-12-04T22:07:51.88 0.1 undecidable manual P 161 0.1637 120 0.04 99
IV.FIU1.HNN. 2020-12-04T22:07:50.48 0.1 undecidable manual P 69 0.0791 140 0.09 99
IV.SEF1.HNZ. 2020-12-04T22:07:50.74 0.1 undecidable manual P 98 0.0863 138 0.25 96
IV.NARO.HHZ. 2020-12-04T22:07:49.45 3.0 undecidable manual P -0.12 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NARO.HHN. ML:1.9 0.000176 0.76 AML other m 2020-12-04T22:07:51.22
IV.ASSB.HHN. ML:1.1 8.89E-5 0.46 AML other m 2020-12-04T22:07:55.26
IV.ASSB.HHE. ML:1.2 0.0001187 0.54 AML other m 2020-12-04T22:07:56.62
IV.NARO.HHE. ML:1.8 0.00013846083 0.1792 AML other m 2020-12-04T22:07:51.15
IV.SNTG.HHE. ML:0.7 4.310752E-5 0.2176 AML other m 2020-12-04T22:07:53.72
IV.SNTG.HHN. ML:0.7 5.518928E-5 0.1664 AML other m 2020-12-04T22:07:53.77
IV.SNTG.HNE. ML:0.7 5.4787294E-5 0.2816 AML other m 2020-12-04T22:07:53.72
IV.SNTG.HNN. ML:0.8 5.936226E-5 0.3328 AML other m 2020-12-04T22:07:53.60
IV.FOSV.EHE. ML:0.6 3.58335215E-5 0.448 AML other m 2020-12-04T22:07:54.28
IV.FOSV.EHN. ML:0.8 5.5232334E-5 0.1024 AML other m 2020-12-04T22:07:54.53
IV.CESI.HHE. ML:0.6 3.0041885E-5 0.2304 AML other m 2020-12-04T22:07:55.06
IV.CESI.HHN. ML:0.8 4.2763785E-5 0.1408 AML other m 2020-12-04T22:07:56.54
IV.CESI.HNE. ML:1 8.15448985E-5 0.256 AML other m 2020-12-04T22:07:55.06
IV.FDMO.HHE. ML:0.9 4.5015425E-5 0.1664 AML other m 2020-12-04T22:07:56.77
IV.FDMO.HHN. ML:0.7 2.8413945E-5 0.1152 AML other m 2020-12-04T22:07:57.02
IV.CSP1.EHE. ML:0.9 4.134046E-5 0.1408 AML other m 2020-12-04T22:07:58.86
IV.CSP1.EHN. ML:1.1 5.95542E-5 0.3968 AML other m 2020-12-04T22:07:58.67
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