Earthquake with magnitude of ML 0.6 on date 17-10-2021 and time 13:36:24 (Italy) in region 1 km NW Fiastra (MC)

A magnitude ML 0.6 earthquake occured in region: 1 km NW Fiastra (MC), on

  • 17-10-2021 11:36:24 (UTC)
  • 17-10-2021 13:36:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.044, 13.141 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
Fiastra MC 2 559 559
Acquacanina MC 3 121 680
Fiordimonte MC 4 202 882
Pievebovigliana MC 5 866 1748
Pieve Torina MC 7 1458 3206
Bolognola MC 9 142 3348
Muccia MC 9 915 4263
Ussita MC 11 444 4707
Camerino MC 12 6974 11681
Cessapalombo MC 12 512 12193
Monte Cavallo MC 13 145 12338
Caldarola MC 13 1823 14161
Visso MC 13 1107 15268
Sarnano MC 13 3264 18532
Camporotondo di Fiastrone MC 14 563 19095
Serrapetrona MC 16 966 20061
Serravalle di Chienti MC 16 1070 21131
Belforte del Chienti MC 16 1886 23017
San Ginesio MC 16 3498 26515
Gualdo MC 16 815 27330
Castelsantangelo sul Nera MC 17 281 27611
Amandola FM 19 3629 31240
Sefro MC 19 422 31662
Pioraco MC 20 1134 32796
Montefortino FM 20 1178 33974
Castelraimondo MC 20 4587 38561
Preci PG 20 724 39285

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
62 Km E of Perugia (166134 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
67 Km NE of Terni (111501 inhabitants)
71 Km SW of Ancona (100861 inhabitants)
80 Km N of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
98 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 0.6 2021-10-17
11:36:24
43.0435 13.1413 12 2021-10-17
11:46:08
Sala Sismica INGV-Roma 96679111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-17 11:36:24 ± 0.05
Latitude 43.0435 ± 0.0027
Longitude 13.1413 ± 0.0037
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 96679111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 260
Semi-minor axis of confidence ellipse (meter) 112
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 166
Circular confidence region, given by single value of horizontal uncertainty (meter) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.21044
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 96679111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-17 11:46:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APEC.HHZ. 2021-10-17T11:36:49.58 3.0 undecidable manual S 0 0
IV.NRCA.HHZ. 2021-10-17T11:36:33.15 0.3 undecidable manual S 185 0.2104 93 -0.24 71
IV.CESI.HNZ. 2021-10-17T11:36:32.42 0.3 undecidable manual S 258 0.1772 94 0.02 74
IV.MC2.EHZ. 2021-10-17T11:36:31.36 0.3 undecidable manual S 165 0.1367 101 0.16 72
IV.MML1.EHZ. 2021-10-17T11:36:31.34 0.3 undecidable manual S 300 0.1421 99 -0.03 74
IV.PF6.EHZ. 2021-10-17T11:36:30.09 0.3 undecidable manual S 22 0.1016 117 -0.14 73
IV.CSP1.EHZ. 2021-10-17T11:36:29.42 0.3 undecidable manual S 44 0.0665 136 0.02 76
IV.CESI.HNZ. 2021-10-17T11:36:29.16 0.3 undecidable manual P 258 0.1772 94 0.02 74
IV.NRCA.HHZ. 2021-10-17T11:36:29.56 0.3 undecidable manual P 185 0.2104 93 -0.15 72
IV.MML1.EHZ. 2021-10-17T11:36:28.58 0.3 undecidable manual P 300 0.1421 99 0.03 74
IV.MC2.EHZ. 2021-10-17T11:36:28.51 0.3 undecidable manual P 165 0.1367 101 0.06 74
IV.FDMO.HHZ. 2021-10-17T11:36:28.95 0.3 undecidable manual S 260 0.0405 152 0.01 75
IV.FDMO.HHZ. 2021-10-17T11:36:27.23 0.3 undecidable manual P 260 0.0405 152 0.09 75
IV.PF6.EHZ. 2021-10-17T11:36:27.84 0.1 undecidable manual P 22 0.1016 117 -0.05 100
IV.CSP1.EHZ. 2021-10-17T11:36:27.55 0.1 undecidable manual P 44 0.0665 136 0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.4 4.215E-5 0.1 AML other m 2021-10-17T11:36:29.09
IV.FDMO.HHE. ML:0.4 3.8180945E-5 0.1024 AML other m 2021-10-17T11:36:29.32
IV.CSP1.EHE. ML:0.9 0.00010332368 0.1216 AML other m 2021-10-17T11:36:29.54
IV.CSP1.EHN. ML:1 0.000126156425 0.1408 AML other m 2021-10-17T11:36:29.53
IV.NRCA.HHN. ML:0.7 2.9151305E-5 0.1216 AML other m 2021-10-17T11:36:33.87
IV.NRCA.HHE. ML:0.7 3.1E-5 1.12 AML other m 2021-10-17T11:36:34.43
IV.MML1.EHE. ML:0.2 1.70570875E-5 0.2176 AML other m 2021-10-17T11:36:31.56
IV.MML1.EHN. ML:0.6 3.40543E-5 0.1792 AML other m 2021-10-17T11:36:31.41
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