Earthquake with magnitude of ML 0.8 on date 24-09-2021 and time 16:08:22 (Italy) in region 2 km NE Fiastra (MC)

A magnitude ML 0.8 earthquake occured in region: 2 km NE Fiastra (MC), on

  • 24-09-2021 14:08:22 (UTC)
  • 24-09-2021 16:08:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.054, 13.176 at 9 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 3 559 559
Acquacanina MC 3 121 680
Fiordimonte MC 7 202 882
Pievebovigliana MC 7 866 1748
Bolognola MC 8 142 1890
Cessapalombo MC 9 512 2402
Pieve Torina MC 10 1458 3860
Sarnano MC 10 3264 7124
Caldarola MC 10 1823 8947
Muccia MC 11 915 9862
Camporotondo di Fiastrone MC 11 563 10425
Ussita MC 13 444 10869
Camerino MC 13 6974 17843
San Ginesio MC 13 3498 21341
Gualdo MC 13 815 22156
Belforte del Chienti MC 13 1886 24042
Serrapetrona MC 14 966 25008
Visso MC 15 1107 26115
Monte Cavallo MC 16 145 26260
Amandola FM 17 3629 29889
Castelsantangelo sul Nera MC 18 281 30170
Serravalle di Chienti MC 18 1070 31240
Montefortino FM 18 1178 32418
Ripe San Ginesio MC 19 852 33270
Sant'Angelo in Pontano MC 19 1436 34706
Colmurano MC 19 1263 35969
Tolentino MC 20 20069 56038
San Severino Marche MC 20 12726 68764
Castelraimondo MC 20 4587 73351

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
62 Km NW of Teramo (54892 inhabitants)
64 Km E of Perugia (166134 inhabitants)
69 Km SW of Ancona (100861 inhabitants)
70 Km NE of Terni (111501 inhabitants)
80 Km N of L'Aquila (69753 inhabitants)
89 Km S of Fano (60888 inhabitants)
98 Km S of Pesaro (94582 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 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 0.8 2021-09-24
14:08:22
43.054 13.1757 9 2021-09-24
14:26:07
Sala Sismica INGV-Roma 95834111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-24 14:08:22 ± 0.13
Latitude 43.0540 ± 0.0045
Longitude 13.1757 ± 0.0074
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95834111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 577
Semi-minor axis of confidence ellipse (meter) 234
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 580
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.28059
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 95834111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-24 14:26:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OT.OT17.EHZ. 2021-09-24T14:09:44.00 3.0 undecidable manual Sg 20.790001 0
IV.VAGA.HHZ. 2021-09-24T14:09:40.50 3.0 undecidable manual Sg 23.4 0
IV.ALJA.HHZ. 2021-09-24T14:09:32.92 3.0 undecidable manual Pn 6.66 0
IV.FERC.HHZ.00 2021-09-24T14:09:30.50 3.0 undecidable manual Pn 5.88 0
GU.RNCA.HHZ. 2021-09-24T14:09:24.73 3.0 undecidable manual Sg 4.53 0
IV.INTR.HHZ. 2021-09-24T14:09:22.65 3.0 undecidable manual Sg 18.49 0
IV.ZEN8.EHZ. 2021-09-24T14:09:13.99 3.0 undecidable manual Sg 1.8 0
MN.TRI.HHZ. 2021-09-24T14:09:12.04 3.0 undecidable manual Sg 3.25 0
SL.LJU.BHZ. 2021-09-24T14:09:10.92 3.0 undecidable manual Sn -9.1 0
IV.PZUN.HHZ. 2021-09-24T14:09:05.32 3.0 negative manual Pn 7.01 0
GU.GRAM.HHZ. 2021-09-24T14:09:05.88 3.0 undecidable manual Sg 0.99 0
IV.VITU.HHZ. 2021-09-24T14:09:02.15 3.0 negative manual Pg 15.68 0
IV.CSNT.HHZ. 2021-09-24T14:08:44.25 3.0 undecidable manual Sn -3.91 0
IV.CADC.EHZ. 2021-09-24T14:08:35.69 3.0 positive manual Pn -5.43 0
IV.VIVA.HHZ. 2021-09-24T14:08:35.34 3.0 positive manual Pn 0.24 0
IV.VENL.EHZ. 2021-09-24T14:08:34.14 3.0 positive manual Pg 1.38 0
IV.EL6.EHZ. 2021-09-24T14:08:33.76 0.6 undecidable manual S 349 0.2806 50 -0.02 48
IV.ZEN8.EHZ. 2021-09-24T14:08:32.82 3.0 undecidable manual Pn -6.72 0
IV.TOLF.HHZ. 2021-09-24T14:08:30.27 3.0 undecidable manual Pn -2.09 0
IV.MMO1.EHZ. 2021-09-24T14:08:30.28 0.6 undecidable manual S 144 0.1898 113 -0.28 46
IV.MC2.EHZ. 2021-09-24T14:08:29.06 0.6 undecidable manual S 176 0.143 120 0.12 48
IV.MML1.EHZ. 2021-09-24T14:08:29.72 0.6 undecidable manual S 292 0.1601 117 0.19 47
IV.EL6.EHZ. 2021-09-24T14:08:28.76 1.0 positive manual P 349 0.2806 50 -0.29 23
IV.GUMA.HNZ. 2021-09-24T14:08:28.54 0.6 undecidable manual S 86 0.1169 125 0.45 45
IV.CAVE.HHZ. 2021-09-24T14:08:28.19 3.0 positive manual Pn -3.6 0
IV.FDMO.HHZ. 2021-09-24T14:08:26.55 0.6 undecidable manual S 255 0.0665 141 -0.12 49
IV.MMO1.EHZ. 2021-09-24T14:08:26.43 0.6 undecidable manual P 144 0.1898 113 -0.76 40
IV.PF6.EHZ. 2021-09-24T14:08:26.88 0.6 undecidable manual S 9 0.0845 134 -0.26 47
IV.GUMA.HNZ. 2021-09-24T14:08:26.08 0.1 undecidable manual P 86 0.1169 125 0.31 93
IV.MC2.EHZ. 2021-09-24T14:08:26.53 1.0 undecidable manual P 176 0.143 120 0.28 23
IV.MML1.EHZ. 2021-09-24T14:08:26.77 1.0 negative manual P 292 0.1601 117 0.17 24
IV.FDMO.HHZ. 2021-09-24T14:08:25.08 0.1 positive manual P 255 0.0665 141 0.13 97
IV.CSP1.EHZ. 2021-09-24T14:08:25.84 0.6 undecidable manual S 29 0.0432 152 -0.33 47
IV.PF6.EHZ. 2021-09-24T14:08:25.17 0.1 undecidable manual P 9 0.0845 134 -0.04 99
IV.CSP1.EHZ. 2021-09-24T14:08:24.67 0.1 negative manual P 29 0.0432 152 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:1.3 0.0003615 0.16 AML other m 2021-09-24T14:08:25.89
IV.CSP1.EHE. ML:1.2 0.0003065 1.66 AML other m 2021-09-24T14:08:26.88
IV.FDMO.HHN. ML:0.7 8.055E-5 0.1 AML other m 2021-09-24T14:08:26.61
IV.FDMO.HHE. ML:0.7 8.185E-5 0.44 AML other m 2021-09-24T14:08:26.83
IV.MML1.EHE. ML:0.6 3.02E-5 1.58 AML other m 2021-09-24T14:08:30.83
IV.MML1.EHN. ML:0.5 2.565E-5 1.06 AML other m 2021-09-24T14:08:30.05
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