Earthquake with magnitude of ML 0.7 on date 23-10-2021 and time 22:18:46 (UTC) in region 2 km NW Pieve Torina (MC)

A magnitude ML 0.7 earthquake occured in region: 2 km NW Pieve Torina (MC), on

  • 23-10-2021 22:18:46 (UTC)
  • 24-10-2021 00:18:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.056, 13.027 at 6 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
Pieve Torina MC 2 1458 1458
Muccia MC 3 915 2373
Pievebovigliana MC 5 866 3239
Fiordimonte MC 6 202 3441
Serravalle di Chienti MC 6 1070 4511
Monte Cavallo MC 7 145 4656
Camerino MC 10 6974 11630
Fiastra MC 11 559 12189
Sefro MC 12 422 12611
Acquacanina MC 12 121 12732
Pioraco MC 14 1134 13866
Visso MC 15 1107 14973
Ussita MC 15 444 15417
Fiuminata MC 17 1402 16819
Castelraimondo MC 17 4587 21406
Bolognola MC 18 142 21548
Caldarola MC 19 1823 23371
Serrapetrona MC 19 966 24337
Preci PG 20 724 25061
Cessapalombo MC 20 512 25573

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
52 Km E of Perugia (166134 inhabitants)
63 Km NE of Terni (111501 inhabitants)
71 Km NW of Teramo (54892 inhabitants)
74 Km SW of Ancona (100861 inhabitants)
84 Km NW of L'Aquila (69753 inhabitants)
88 Km S of Fano (60888 inhabitants)
96 Km S of Pesaro (94582 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 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 0.7 2021-10-23
22:18:46
43.0563 13.0268 6 2021-10-23
22:25:14
Sala Sismica INGV-Roma 96919191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-23 22:18:46 ± 0.15
Latitude 43.0563 ± 0.0036
Longitude 13.0268 ± 0.0037
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96919191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 384
Semi-minor axis of confidence ellipse (meter) 202
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 12
Circular confidence region, given by single value of horizontal uncertainty (meter) 380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.60524
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 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 96919191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-23 22:25:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2021-10-23T22:19:07.61 0.1 undecidable manual P 0.6052 8.67 0
IV.SNTG.HHZ. 2021-10-23T22:18:54.89 0.3 undecidable manual S 342 0.2086 103 0.19 72
IV.EL6.EHZ. 2021-10-23T22:18:52.48 0.1 undecidable manual P 11 0.2779 100 -0.26 93
IV.CSP1.EHZ. 2021-10-23T22:18:52.08 0.3 undecidable manual S 75 0.1349 110 0.09 74
IV.SNTG.HHZ. 2021-10-23T22:18:51.07 0.1 undecidable manual P 342 0.2086 103 -0.14 96
IV.CESI.HHZ. 2021-10-23T22:18:50.71 0.3 undecidable manual S 240 0.1034 116 -0.15 74
IV.CESI.HHZ. 2021-10-23T22:18:49.19 0.1 undecidable manual P 240 0.1034 116 0.19 97
IV.FDMO.HHZ. 2021-10-23T22:18:49.01 0.3 undecidable manual S 114 0.0486 136 -0.12 75
IV.CSP1.EHZ. 2021-10-23T22:18:49.85 0.6 positive manual P 75 0.1349 110 0.2 48
IV.MML1.EHZ. 2021-10-23T22:18:49.76 0.3 undecidable manual S 325 0.0701 125 0 76
IV.FDMO.HHZ. 2021-10-23T22:18:48.04 0.6 undecidable manual P 114 0.0486 136 0.04 51
IV.MML1.EHZ. 2021-10-23T22:18:48.45 0.1 undecidable manual P 325 0.0701 125 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0 0.0003535 0.2 AML other m 2021-10-23T22:18:49.34
IV.FDMO.HHE. ML:0 0.000156 0.18 AML other m 2021-10-23T22:18:49.35
IV.MML1.EHE. ML:0 7.835E-5 0.1 AML other m 2021-10-23T22:18:50.14
IV.MML1.EHN. ML:0 0.000107 0.12 AML other m 2021-10-23T22:18:50.14
IV.CESI.HHN. ML:0.5 4.97E-5 0.18 AML other m 2021-10-23T22:18:51.38
IV.CESI.HHE. ML:0.4 3.854339E-5 0.1024 AML other m 2021-10-23T22:18:51.59
IV.CSP1.EHE. ML:0.8 7.710033E-5 2.5472 AML other m 2021-10-23T22:18:53.91
IV.CSP1.EHN. ML:0.9 9.211867E-5 1.4976 AML other m 2021-10-23T22:18:53.40
IV.SNTG.HHN. ML:0.6 2.3108185E-5 2.3552 AML other m 2021-10-23T22:18:54.87
IV.SNTG.HNE. ML:1.2 0.00012089936 0.64 AML other m 2021-10-23T22:18:57.89
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