Earthquake with magnitude of ML 1.1 on date 17-10-2021 and time 12:10:43 (Italy) in region 3 km NE Pioraco (MC)

A magnitude ML 1.1 earthquake occured in region: 3 km NE Pioraco (MC), on

  • 17-10-2021 10:10:43 (UTC)
  • 17-10-2021 12:10:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.201, 13.009 at 12 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
Pioraco MC 3 1134 1134
Castelraimondo MC 4 4587 5721
Fiuminata MC 6 1402 7123
Matelica MC 6 9981 17104
Gagliole MC 7 620 17724
Esanatoglia MC 8 2034 19758
Sefro MC 8 422 20180
Camerino MC 9 6974 27154
Muccia MC 13 915 28069
Cerreto d'Esi AN 14 3817 31886
San Severino Marche MC 14 12726 44612
Serrapetrona MC 15 966 45578
Serravalle di Chienti MC 15 1070 46648
Pievebovigliana MC 17 866 47514
Fabriano AN 17 31480 78994
Pieve Torina MC 18 1458 80452
Gualdo Tadino PG 18 15208 95660
Caldarola MC 19 1823 97483
Belforte del Chienti MC 19 1886 99369
Fiordimonte MC 19 202 99571

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NE of Foligno (57155 inhabitants)
51 Km E of Perugia (166134 inhabitants)
62 Km SW of Ancona (100861 inhabitants)
72 Km S of Fano (60888 inhabitants)
77 Km NE of Terni (111501 inhabitants)
79 Km S of Pesaro (94582 inhabitants)
83 Km NW of Teramo (54892 inhabitants)
96 Km E of Arezzo (99543 inhabitants)
100 Km NW of L'Aquila (69753 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 1.1 2021-10-17
10:10:43
43.201 13.0092 12 2021-10-17
10:34:55
Sala Sismica INGV-Roma 96678441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-17 10:10:43 ± 0.05
Latitude 43.2010 ± 0.0027
Longitude 13.0092 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96678441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 398
Semi-minor axis of confidence ellipse (meter) 137
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 69
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.07374
Epicentral distance of station farthest from the epicenter (degree) 0.48024
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 96678441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-17 10:34:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HHZ. 2021-10-17T10:10:57.38 0.6 undecidable manual S 280 0.3579 92 0.62 41
IV.ASSB.HHZ. 2021-10-17T10:10:55.00 0.3 undecidable manual S 238 0.3004 93 -0.06 72
IV.MC2.EHZ. 2021-10-17T10:10:55.99 0.3 undecidable manual S 156 0.3175 92 0.42 66
IV.PIEI.HHZ. 2021-10-17T10:10:53.11 0.6 positive manual P 314 0.4802 91 -0.21 44
IV.FOSV.EHZ. 2021-10-17T10:10:52.11 0.3 undecidable manual S 298 0.2032 95 -0.07 73
IV.CESI.HHZ. 2021-10-17T10:10:52.46 0.1 undecidable manual S 201 0.2104 95 0.07 96
IV.CSP1.EHZ. 2021-10-17T10:10:51.52 0.3 undecidable manual S 127 0.1799 97 0.04 74
IV.MURB.HHZ. 2021-10-17T10:10:51.30 0.6 positive manual P 280 0.3579 92 0.06 47
IV.FDMO.HHZ. 2021-10-17T10:10:51.14 0.3 undecidable manual S 161 0.1736 98 -0.18 71
IV.MC2.EHZ. 2021-10-17T10:10:50.49 0.6 negative manual P 156 0.3175 92 -0.06 47
IV.EL6.EHZ. 2021-10-17T10:10:50.61 0.3 undecidable manual S 28 0.1448 104 0.14 73
IV.ASSB.HHZ. 2021-10-17T10:10:50.04 0.3 negative manual P 238 0.3004 93 -0.22 69
IV.ATCC.EHZ. 2021-10-17T10:10:49.69 1.0 undecidable manual P 267 0.2698 93 -0.03 24
IV.MML1.EHZ. 2021-10-17T10:10:49.12 0.3 undecidable manual S 197 0.0917 125 0.09 74
IV.SNTG.HHZ. 2021-10-17T10:10:48.68 0.1 undecidable manual S 317 0.0737 135 0.06 99
IV.FOSV.EHZ. 2021-10-17T10:10:48.06 1.0 undecidable manual P 298 0.2032 95 -0.53 22
IV.CSP1.EHZ. 2021-10-17T10:10:48.15 0.3 negative manual P 127 0.1799 97 -0.04 73
IV.CESI.HHZ. 2021-10-17T10:10:48.57 0.1 positive manual P 201 0.2104 95 -0.14 95
IV.FDMO.HHZ. 2021-10-17T10:10:47.88 0.6 undecidable manual P 161 0.1736 98 -0.21 47
IV.EL6.EHZ. 2021-10-17T10:10:47.62 0.3 negative manual P 28 0.1448 104 0.02 74
IV.SNTG.HHZ. 2021-10-17T10:10:46.57 0.1 undecidable manual P 317 0.0737 135 0.04 100
IV.MML1.EHZ. 2021-10-17T10:10:46.58 0.6 undecidable manual P 197 0.0917 125 -0.19 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SNTG.HHE. ML:0.9 9.595E-5 0.06 AML other m 2021-10-17T10:10:48.74
IV.SNTG.HHN. ML:0.9 0.00010685 0.08 AML other m 2021-10-17T10:10:48.87
IV.FDMO.HHE. ML:1.2 0.00011365 0.18 AML other m 2021-10-17T10:10:51.33
IV.FDMO.HHN. ML:1.1 0.00010105 0.14 AML other m 2021-10-17T10:10:51.42
IV.SSFR.HHN. ML:1.4 0.00011625 0.28 AML other m 2021-10-17T10:10:55.46
IV.SSFR.HHE. ML:1.4 0.0001165 0.68 AML other m 2021-10-17T10:10:55.23
IV.SNTG.HNE. ML:1 0.000121964345 0.448 AML other m 2021-10-17T10:10:48.90
IV.SNTG.HNN. ML:0.9 0.000101444795 0.2368 AML other m 2021-10-17T10:10:48.78
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