Earthquake with magnitude of ML 0.7 on date 07-12-2021 and time 17:01:15 (UTC) in region 6 km NW Ussita (MC)

A magnitude ML 0.7 earthquake occured in region: 6 km NW Ussita (MC), on

  • 07-12-2021 17:01:15 (UTC)
  • 07-12-2021 18:01:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.992, 13.119 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
Ussita MC 6 444 444
Fiordimonte MC 6 202 646
Fiastra MC 6 559 1205
Acquacanina MC 6 121 1326
Visso MC 7 1107 2433
Pieve Torina MC 8 1458 3891
Pievebovigliana MC 8 866 4757
Bolognola MC 9 142 4899
Monte Cavallo MC 10 145 5044
Castelsantangelo sul Nera MC 11 281 5325
Muccia MC 12 915 6240
Preci PG 14 724 6964
Sarnano MC 16 3264 10228
Serravalle di Chienti MC 16 1070 11298
Camerino MC 17 6974 18272
Cessapalombo MC 17 512 18784
Caldarola MC 19 1823 20607
Montefortino FM 19 1178 21785
Sellano PG 19 1079 22864
Amandola FM 19 3629 26493
Camporotondo di Fiastrone MC 20 563 27056
Gualdo MC 20 815 27871
Montemonaco AP 20 604 28475

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
60 Km NW of Teramo (54892 inhabitants)
61 Km E of Perugia (166134 inhabitants)
61 Km NE of Terni (111501 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
95 Km S of Fano (60888 inhabitants)
100 Km NW of Montesilvano (53738 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 0.7 2021-12-07
17:01:15
42.9923 13.1192 11 2021-12-07
17:08:59
Sala Sismica INGV-Roma 98246811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-07 17:01:15 ± 0.28
Latitude 42.9923 ± 0.0054
Longitude 13.1192 ± 0.0086
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98246811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 708
Semi-minor axis of confidence ellipse (meter) 146
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 83
Circular confidence region, given by single value of horizontal uncertainty (meter) 710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
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) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.04946
Epicentral distance of station farthest from the epicenter (degree) 0.15918
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:0.7

Field Value
Value 0.7
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 98246811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-07 17:08:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2021-12-07T17:01:22.22 0.3 undecidable manual S 181 0.1592 121 -0.33 70
IV.CESI.HHE. 2021-12-07T17:01:22.29 0.6 undecidable manual S 275 0.1574 122 -0.21 48
IV.CSP1.EHZ. 2021-12-07T17:01:21.17 0.3 undecidable manual S 32 0.1178 130 -0.08 75
IT.MTCL.HGN. 2021-12-07T17:01:20.19 0.3 undecidable manual S 271 0.0872 138 -0.22 73
IV.MC2.EHZ. 2021-12-07T17:01:20.92 0.3 undecidable manual S 148 0.0953 135 0.29 71
IV.FDMO.HHZ. 2021-12-07T17:01:19.44 0.3 undecidable manual S 332 0.0495 153 -0.14 74
IV.NRCA.HHZ. 2021-12-07T17:01:19.10 0.3 undecidable manual P 181 0.1592 121 -0.41 69
IV.FEMA.HNN. 2021-12-07T17:01:19.90 0.3 undecidable manual S 239 0.0594 149 0.14 74
IV.CESI.HHE. 2021-12-07T17:01:19.48 0.3 undecidable manual P 275 0.1574 122 -0.01 75
IV.MC2.EHZ. 2021-12-07T17:01:18.56 0.3 undecidable manual P 148 0.0953 135 0.15 74
IV.FEMA.HNN. 2021-12-07T17:01:18.00 0.1 undecidable manual P 239 0.0594 149 0.1 100
IV.CSP1.EHZ. 2021-12-07T17:01:18.67 0.3 undecidable manual P 32 0.1178 130 -0.09 74
IT.MTCL.HGN. 2021-12-07T17:01:18.98 0.1 undecidable manual P 271 0.0872 138 0.7 84
IV.FDMO.HHZ. 2021-12-07T17:01:17.68 0.3 undecidable manual P 332 0.0495 153 -0.12 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.1 1.965639E-5 0.1024 AML other m 2021-12-07T17:01:19.86
IV.FDMO.HHN. ML:0.4 3.9402695E-5 0.2432 AML other m 2021-12-07T17:01:19.63
IV.MC2.EHE. ML:0.7 6.3909255E-5 0.704 AML other m 2021-12-07T17:01:21.51
IV.MC2.EHN. ML:0.8 7.894828E-5 1.0112 AML other m 2021-12-07T17:01:21.64
IV.CSP1.EHE. ML:0.7 5.3349925E-5 0.1408 AML other m 2021-12-07T17:01:21.29
IV.CSP1.EHN. ML:0.9 8.84874345E-5 1.1136 AML other m 2021-12-07T17:01:20.00
IV.NRCA.HHE. ML:0.3 1.418664E-5 0.1536 AML other m 2021-12-07T17:01:23.41
IV.NRCA.HHN. ML:0.3 1.644985E-5 0.1408 AML other m 2021-12-07T17:01:22.76
IV.NRCA.HNE. ML:1 9.0300435E-5 1.9328 AML other m 2021-12-07T17:01:23.69
IV.NRCA.HNN. ML:1.3 0.0001730589 1.4848 AML other m 2021-12-07T17:01:21.78
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