Earthquake with magnitude of ML 1.3 on date 07-12-2021 and time 05:01:24 (Italy) in region 6 km W Serravalle di Chienti (MC)

A magnitude ML 1.3 earthquake occured in region: 6 km W Serravalle di Chienti (MC), on

  • 07-12-2021 04:01:24 (UTC)
  • 07-12-2021 05:01:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.084, 12.879 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
Serravalle di Chienti MC 6 1070 1070
Nocera Umbra PG 8 5839 6909
Sefro MC 9 422 7331
Valtopina PG 10 1398 8729
Fiuminata MC 13 1402 10131
Muccia MC 14 915 11046
Pioraco MC 14 1134 12180
Monte Cavallo MC 14 145 12325
Pieve Torina MC 15 1458 13783
Camerino MC 16 6974 20757
Pievebovigliana MC 17 866 21623
Fiordimonte MC 18 202 21825
Gualdo Tadino PG 18 15208 37033
Esanatoglia MC 20 2034 39067
Spello PG 20 8645 47712

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of Foligno (57155 inhabitants)
40 Km E of Perugia (166134 inhabitants)
61 Km NE of Terni (111501 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
85 Km S of Fano (60888 inhabitants)
91 Km E of Arezzo (99543 inhabitants)
92 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Pesaro (94582 inhabitants)
97 Km NE of Viterbo (67173 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 1.3 2021-12-07
04:01:24
43.084 12.8793 10 2021-12-07
04:12:53
Sala Sismica INGV-Roma 98228191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-07 04:01:24 ± 0.04
Latitude 43.0840 ± 0.0027
Longitude 12.8793 ± 0.0025
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 98228191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 212
Semi-minor axis of confidence ellipse (meter) 196
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 341
Circular confidence region, given by single value of horizontal uncertainty (meter) 210
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.08094
Epicentral distance of station farthest from the epicenter (degree) 0.35883
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 98228191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-07 04:12:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2021-12-07T04:01:33.20 0.6 undecidable manual S 300 0.2014 114 0.13 50
IV.SSFR.HHZ. 2021-12-07T04:01:32.10 1.0 positive manual P 349 0.3588 50 -0.12 24
IV.SNTG.HHZ. 2021-12-07T04:01:32.16 0.6 undecidable manual S 15 0.1763 117 -0.03 51
IV.FDMO.HHZ. 2021-12-07T04:01:31.52 0.6 undecidable manual S 107 0.1592 120 -0.08 50
IV.EL6.EHZ. 2021-12-07T04:01:31.10 0.3 positive manual P 33 0.2941 50 0 75
IV.ASSB.HHZ. 2021-12-07T04:01:31.61 0.6 undecidable manual S 256 0.1664 119 -0.23 49
IV.NRCA.HHZ. 2021-12-07T04:01:31.21 1.0 undecidable manual P 145 0.304 50 -0.06 25
IV.CSP1.EHZ. 2021-12-07T04:01:30.15 0.6 negative manual P 88 0.2374 50 0.01 50
IV.ATCC.EHZ. 2021-12-07T04:01:29.55 1.0 negative manual P 300 0.2014 114 0.09 25
IV.CESI.HHZ. 2021-12-07T04:01:29.12 0.6 undecidable manual S 167 0.0809 138 -0.12 51
IV.SNTG.HHZ. 2021-12-07T04:01:28.92 0.3 negative manual P 15 0.1763 117 -0.04 76
IV.FDMO.HHZ. 2021-12-07T04:01:28.62 1.0 undecidable manual P 107 0.1592 120 0.01 26
IV.ASSB.HHZ. 2021-12-07T04:01:28.77 0.3 positive manual P 256 0.1664 119 0.01 77
IV.CESI.HHZ. 2021-12-07T04:01:27.45 0.1 negative manual P 167 0.0809 138 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.5 0.000379 0.16 AML other m 2021-12-07T04:01:29.34
IV.CESI.HHE. ML:1.6 0.0004685 0.36 AML other m 2021-12-07T04:01:29.49
IV.FDMO.HHE. ML:1.3 0.000167 0.14 AML other m 2021-12-07T04:01:31.77
IV.FDMO.HHN. ML:1.1 9.42E-5 1.16 AML other m 2021-12-07T04:01:31.79
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