Earthquake with magnitude of ML 0.4 on date 06-12-2021 and time 05:06:16 (Italy) in region 4 km NE Costacciaro (PG)

A magnitude ML 0.4 earthquake occured in region: 4 km NE Costacciaro (PG), on

  • 06-12-2021 04:06:16 (UTC)
  • 06-12-2021 05:06:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.377, 12.75 at 14 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
Costacciaro PG 4 1216 1216
Sigillo PG 5 2404 3620
Scheggia e Pascelupo PG 7 1393 5013
Fossato di Vico PG 9 2840 7853
Sassoferrato AN 11 7285 15138
Serra Sant'Abbondio PU 13 1027 16165
Fabriano AN 13 31480 47645
Gubbio PG 14 32216 79861
Cantiano PU 15 2245 82106
Frontone PU 16 1300 83406
Genga AN 16 1797 85203
Gualdo Tadino PG 16 15208 100411

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NE of Perugia (166134 inhabitants)
47 Km N of Foligno (57155 inhabitants)
56 Km SW of Fano (60888 inhabitants)
61 Km S of Pesaro (94582 inhabitants)
68 Km W of Ancona (100861 inhabitants)
71 Km E of Arezzo (99543 inhabitants)
78 Km S of Rimini (147750 inhabitants)
91 Km N of Terni (111501 inhabitants)
94 Km SE of Cesena (96758 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.4 2021-12-06
04:06:16
43.3767 12.7498 14 2021-12-06
04:15:43
Sala Sismica INGV-Roma 98200711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-06 04:06:16 ± 0.05
Latitude 43.3767 ± 0.0018
Longitude 12.7498 ± 0.0049
Depth (km) 14 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98200711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 357
Semi-minor axis of confidence ellipse (meter) 214
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.07
Epicentral distance of station closest to the epicenter (degree) 0.06385
Epicentral distance of station farthest from the epicenter (degree) 0.2644
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 98200711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-06 04:15:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2021-12-06T04:06:24.76 0.3 undecidable manual S 49 0.1844 110 -0.03 74
IV.FRON.EHZ. 2021-12-06T04:06:23.66 0.3 undecidable manual S 353 0.1421 119 0.02 75
IV.PIEI.HHZ. 2021-12-06T04:06:22.11 0.6 undecidable manual P 316 0.223 105 0.12 48
IV.FOSV.EHZ. 2021-12-06T04:06:22.21 0.1 undecidable manual S 174 0.0818 140 -0.06 100
IV.NARO.HHZ. 2021-12-06T04:06:22.51 0.6 undecidable manual P 332 0.2644 101 -0.18 47
IV.SSFR.HHZ. 2021-12-06T04:06:21.94 0.3 undecidable manual S 22 0.0639 147 -0.01 76
IV.ARVD.HHZ. 2021-12-06T04:06:21.34 0.1 undecidable manual P 49 0.1844 110 -0.03 98
IV.SNTG.HHZ. 2021-12-06T04:06:21.39 0.3 undecidable manual P 131 0.1844 110 0.02 74
IV.FRON.EHZ. 2021-12-06T04:06:20.72 0.3 undecidable manual P 353 0.1421 119 0.01 75
IV.SSFR.HHZ. 2021-12-06T04:06:19.80 0.3 undecidable manual P 22 0.0639 147 0.07 75
IV.FOSV.EHZ. 2021-12-06T04:06:19.99 0.3 undecidable manual P 174 0.0818 140 0.08 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHE. ML:0.5 3.3089765E-5 0.1408 AML other m 2021-12-06T04:06:23.97
IV.SSFR.HHN. ML:0.5 3.305932E-5 0.1408 AML other m 2021-12-06T04:06:23.61
IV.SSFR.HNE. ML:0.9 9.6274595E-5 0.48 AML other m 2021-12-06T04:06:27.53
IV.FRON.EHE. ML:0.4 2.126815E-5 0.0832 AML other m 2021-12-06T04:06:23.72
IV.FRON.EHN. ML:0.3 1.628366E-5 0.0992 AML other m 2021-12-06T04:06:23.82
IV.ARVD.HHE. ML:0.2 1.2375457E-5 0.1792 AML other m 2021-12-06T04:06:25.13
IV.ARVD.HHN. ML:0.4 1.2923275E-5 0.1792 AML other m 2021-12-06T04:06:25.08
IV.PIEI.HHE. ML:0.4 1.67549505E-5 0.08 AML other m 2021-12-06T04:06:26.50
IV.PIEI.HHN. ML:0.3 1.202669E-5 0.1792 AML other m 2021-12-06T04:06:26.20
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download