Earthquake with magnitude of ML 1.2 on date 06-12-2021 and time 08:36:55 (Italy) in region Comunanza (AP)

A magnitude ML 1.2 earthquake occured in region: Comunanza (AP), on

  • 06-12-2021 07:36:55 (UTC)
  • 06-12-2021 08:36:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.959, 13.42 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
Comunanza AP 0 3166 3166
Montefalcone Appennino FM 5 424 3590
Smerillo FM 6 365 3955
Amandola FM 6 3629 7584
Force AP 6 1354 8938
Montefortino FM 7 1178 10116
Palmiano AP 7 196 10312
Monte San Martino MC 8 765 11077
Santa Vittoria in Matenano FM 9 1330 12407
Montemonaco AP 10 604 13011
Venarotta AP 11 2066 15077
Penna San Giovanni MC 11 1108 16185
Rotella AP 12 906 17091
Montelparo FM 12 778 17869
Roccafluvione AP 12 2010 19879
Sarnano MC 13 3264 23143
Monteleone di Fermo FM 13 395 23538
Montedinove AP 14 488 24026
Gualdo MC 14 815 24841
Montegallo AP 15 523 25364
Servigliano FM 15 2336 27700
Monte Rinaldo FM 15 379 28079
Montalto delle Marche AP 16 2122 30201
Sant'Angelo in Pontano MC 16 1436 31637
Bolognola MC 16 142 31779
Monsampietro Morico FM 17 659 32438
Castignano AP 17 2796 35234
Falerone FM 17 3337 38571
Ortezzano FM 17 774 39345
Ascoli Piceno AP 17 49407 88752
Belmonte Piceno FM 18 646 89398
Montottone FM 18 979 90377
San Ginesio MC 19 3498 93875
Monte Vidon Corrado FM 19 731 94606

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NW of Teramo (54892 inhabitants)
58 Km E of Foligno (57155 inhabitants)
68 Km N of L'Aquila (69753 inhabitants)
74 Km S of Ancona (100861 inhabitants)
77 Km NE of Terni (111501 inhabitants)
77 Km NW of Montesilvano (53738 inhabitants)
85 Km NW of Pescara (121014 inhabitants)
85 Km E of Perugia (166134 inhabitants)
91 Km NW of Chieti (51815 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 1.2 2021-12-06
07:36:55
42.9592 13.4198 10 2021-12-06
07:44:19
Sala Sismica INGV-Roma 98205121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-06 07:36:55 ± 0.55
Latitude 42.9592 ± 0.0225
Longitude 13.4198 ± 0.0356
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98205121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3200
Semi-minor axis of confidence ellipse (meter) 2160
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 304
Circular confidence region, given by single value of horizontal uncertainty (meter) 3200
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 223
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.57
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.44067
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 98205121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-06 07:44:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ZEN8.EHZ. 2021-12-06T07:38:42.31 3.0 undecidable manual Sg 18.25 0
IV.GALF.HHZ. 2021-12-06T07:38:19.35 3.0 positive manual Pg 13.98 0
IV.PCN.EHZ. 2021-12-06T07:37:59.25 3.0 positive manual Pg 14.91 0
IV.MSSA.HHZ. 2021-12-06T07:37:52.03 3.0 undecidable manual Pg 11.18 0
OT.OT13.EHZ. 2021-12-06T07:37:50.09 3.0 undecidable manual Sn -0.1 0
IV.ORZI.HHZ. 2021-12-06T07:37:47.90 3.0 negative manual Pn 1.77 0
IV.IMOL.HNZ. 2021-12-06T07:37:46.18 3.0 undecidable manual Sn -2.66 0
IV.VOBA.EHZ. 2021-12-06T07:37:45.85 3.0 undecidable manual Pn 1.07 0
IV.RUFI.EHZ. 2021-12-06T07:37:41.60 3.0 undecidable manual Sn -1.83 0
IV.ATPI.EHZ. 2021-12-06T07:37:26.17 3.0 undecidable manual Sg 0.85 0
IV.FDMO.HHZ. 2021-12-06T07:37:04.28 0.6 undecidable manual S 288 0.2554 50 -1.58 27
IV.NRCA.HHZ. 2021-12-06T07:37:04.85 0.6 undecidable manual S 241 0.2563 50 -1.05 36
IV.CSP1.EHZ. 2021-12-06T07:37:04.27 0.6 undecidable manual S 310 0.2059 114 0.02 51
IV.PP3.EHZ. 2021-12-06T07:37:04.20 0.3 negative manual P 18 0.4407 50 -0.5 66
IV.MC2.EHZ. 2021-12-06T07:37:03.28 0.6 undecidable manual S 254 0.1754 117 0.08 51
IV.CSP1.EHZ. 2021-12-06T07:37:01.31 0.1 undecidable manual P 310 0.2059 114 0.71 85
IV.FDMO.HHZ. 2021-12-06T07:37:01.31 0.6 negative manual P 288 0.2554 50 -0.22 49
IV.NRCA.HHZ. 2021-12-06T07:37:01.66 0.1 undecidable manual P 241 0.2563 50 0.11 100
IV.MC2.EHZ. 2021-12-06T07:37:00.77 0.3 undecidable manual P 254 0.1754 117 0.78 63
IV.CAMP.HHZ. 2021-12-06T07:36:58.47 3.0 undecidable manual Pn -2.1 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.2 9.21E-5 0.7 AML other m 2021-12-06T07:37:05.02
IV.NRCA.HHE. ML:1.1 6.405E-5 0.96 AML other m 2021-12-06T07:37:05.00
IV.IMOL.HNE. ML:4 0.00253 0.06 AML other m 2021-12-06T07:37:23.54
IV.IMOL.HNN. ML:3.9 0.002265 0.04 AML other m 2021-12-06T07:37:40.19
IV.VOBA.EHN. ML:3.5 0.0002025 0.22 AML other m 2021-12-06T07:37:48.44
IV.VOBA.HNN. ML:3.8 0.000447 0.64 AML other m 2021-12-06T07:37:51.15
IV.VOBA.HNE. ML:3.9 0.000582 0.06 AML other m 2021-12-06T07:37:51.53
IV.VOBA.EHE. ML:3.6 0.0003035 0.06 AML other m 2021-12-06T07:37:51.50
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