Earthquake (quarry blast) with magnitude of ML 1.4 on date 23-02-2021 and time 10:30:57 (Italy) in region 4 km S Serra San Quirico (AN)

A magnitude ML 1.4 (quarry blast) earthquake occured in region: 4 km S Serra San Quirico (AN), on

  • 23-02-2021 09:30:57 (UTC)
  • 23-02-2021 10:30:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.42, 13.02 at 8 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Event type: quarry blast.

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
Serra San Quirico AN 4 2850 2850
Mergo AN 6 1037 3887
Poggio San Vicino MC 7 246 4133
Genga AN 7 1797 5930
Cupramontana AN 9 4756 10686
Rosora AN 9 1985 12671
Apiro MC 9 2280 14951
Castelplanio AN 10 3540 18491
Maiolati Spontini AN 11 6248 24739
Cerreto d'Esi AN 11 3817 28556
Arcevia AN 11 4612 33168
Poggio San Marcello AN 12 693 33861
Monte Roberto AN 12 3061 36922
Montecarotto AN 13 1987 38909
Fabriano AN 13 31480 70389
Castelbellino AN 13 4947 75336
Sassoferrato AN 13 7285 82621
San Paolo di Jesi AN 13 933 83554
Staffolo AN 14 2253 85807
Serra de' Conti AN 14 3746 89553
Cingoli MC 17 10352 99905
Matelica MC 18 9981 109886
Barbara AN 18 1368 111254
Esanatoglia MC 19 2034 113288
Gagliole MC 20 620 113908

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km W of Ancona (100861 inhabitants)
48 Km S of Fano (60888 inhabitants)
56 Km S of Pesaro (94582 inhabitants)
57 Km NE of Foligno (57155 inhabitants)
62 Km NE of Perugia (166134 inhabitants)
80 Km SE of Rimini (147750 inhabitants)
92 Km E of Arezzo (99543 inhabitants)
100 Km NE of Terni (111501 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 1.4 2021-02-23
09:30:57
43.42 13.02 8 2021-02-23
09:42:54
Sala Sismica INGV-Roma 87406371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-23 09:30:57 ± 0.12
Latitude 43.42 ± 0.01
Longitude 13.02 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type quarry blast
Origin ID 87406371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 865
Semi-minor axis of confidence ellipse (meter) 341
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 45
Circular confidence region, given by single value of horizontal uncertainty (meter) 860
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 181
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.58726
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 87406371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-23 09:42:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TEOL.HHZ. 2021-02-23T09:31:58.77 3.0 undecidable manual Sn -0.05 0
IV.SARZ.HHZ. 2021-02-23T09:31:57.22 3.0 positive manual Pg 9.78 0
IV.MTMR.EHZ. 2021-02-23T09:31:51.75 3.0 negative manual Pg 9.65 0
IV.CAPR.HNZ. 2021-02-23T09:31:50.55 3.0 undecidable manual Pn 5.48 0
OX.DRE.HHZ. 2021-02-23T09:31:49.20 3.0 positive manual Pg 9.08 0
IV.VITU.HHZ. 2021-02-23T09:31:43.53 3.0 undecidable manual Pg 6.46 0
IT.FIE.HGZ. 2021-02-23T09:31:42.31 3.0 undecidable manual S 3.87 0
IV.IMOL.HNZ. 2021-02-23T09:31:38.17 3.0 undecidable manual S -0.08 0
IV.PTRJ.HHZ. 2021-02-23T09:31:36.93 3.0 undecidable manual Pn 2.54 0
IV.BRSN.HNZ. 2021-02-23T09:31:31.43 3.0 undecidable manual S -1.42 0
IV.FIU.EHZ. 2021-02-23T09:31:27.78 3.0 negative manual Pn 3.09 0
IT.FIE.HGZ. 2021-02-23T09:31:25.36 3.0 undecidable manual P 5.03 0
IV.NRCA.HHZ. 2021-02-23T09:31:18.91 0.3 undecidable manual S 173 0.5873 50 0.56 61
IV.MC2.EHZ. 2021-02-23T09:31:17.61 0.6 undecidable manual S 166 0.5198 50 1.24 30
IV.ATVO.HHZ. 2021-02-23T09:31:14.65 0.3 undecidable manual S 266 0.447 50 0.45 65
IV.CESI.HHZ. 2021-02-23T09:31:14.00 0.3 undecidable manual S 192 0.42 50 0.59 62
IV.ASSB.HHZ. 2021-02-23T09:31:14.57 0.3 undecidable manual S 215 0.4569 50 0.06 70
IV.MURB.HHZ. 2021-02-23T09:31:13.03 0.3 undecidable manual S 247 0.3912 50 0.47 65
IV.NARO.HHZ. 2021-02-23T09:31:12.51 0.3 undecidable manual S 302 0.3732 50 0.5 65
IV.FDMO.HHZ. 2021-02-23T09:31:12.46 0.3 undecidable manual S 173 0.3831 50 0.14 70
IV.ATFO.HHZ. 2021-02-23T09:31:11.28 0.6 undecidable manual S 261 0.3292 50 0.56 43
IV.CSP1.EHZ. 2021-02-23T09:31:11.65 0.6 undecidable manual S 157 0.3516 50 0.27 46
IV.PIEI.HHZ. 2021-02-23T09:31:11.80 0.3 undecidable manual S 289 0.3714 50 -0.16 70
IV.ATCC.EHZ. 2021-02-23T09:31:11.78 0.3 undecidable manual S 230 0.3606 50 0.14 70
IV.NRCA.HHZ. 2021-02-23T09:31:09.39 0.1 undecidable manual P 173 0.5873 50 -0.32 86
IV.MPAG.EHZ. 2021-02-23T09:31:09.65 0.3 undecidable manual S 318 0.2842 105 0.42 67
IV.MC2.EHZ. 2021-02-23T09:31:08.53 0.1 positive manual P 166 0.5198 50 -0.04 93
IV.ASSB.HHZ. 2021-02-23T09:31:07.08 0.1 undecidable manual P 215 0.4569 50 -0.42 87
IV.ATVO.HHZ. 2021-02-23T09:31:07.23 0.1 undecidable manual P 266 0.447 50 -0.08 93
IV.FRON.EHZ. 2021-02-23T09:31:07.73 0.3 undecidable manual S 295 0.2356 108 0.27 70
IV.CESI.HHZ. 2021-02-23T09:31:06.44 0.1 positive manual P 192 0.42 50 -0.42 87
IV.FOSV.EHZ. 2021-02-23T09:31:06.44 0.3 undecidable manual S 237 0.2239 109 -0.57 65
IV.MURB.HHZ. 2021-02-23T09:31:06.27 0.1 undecidable manual P 247 0.3912 50 -0.1 94
IV.PIEI.HHZ. 2021-02-23T09:31:05.60 0.1 undecidable manual P 289 0.3714 50 -0.42 88
IV.SSFR.HHZ. 2021-02-23T09:31:05.45 0.3 undecidable manual S 277 0.1736 114 0.25 71
IV.FDMO.HHZ. 2021-02-23T09:31:05.77 0.1 positive manual P 173 0.3831 50 -0.46 87
IV.ATCC.EHZ. 2021-02-23T09:31:05.56 0.1 undecidable manual P 230 0.3606 50 -0.28 91
IV.ATFO.HHZ. 2021-02-23T09:31:05.01 0.1 undecidable manual P 261 0.3292 50 -0.3 91
IV.NARO.HHZ. 2021-02-23T09:31:05.87 0.1 undecidable manual P 302 0.3732 50 -0.18 93
IV.CSP1.EHZ. 2021-02-23T09:31:05.19 0.1 undecidable manual P 157 0.3516 50 -0.5 87
IV.MPAG.EHZ. 2021-02-23T09:31:04.42 0.1 undecidable manual P 318 0.2842 105 -0.03 97
IV.FRON.EHZ. 2021-02-23T09:31:03.30 0.1 undecidable manual P 295 0.2356 108 -0.12 96
IV.EL6.EHZ. 2021-02-23T09:31:03.90 0.3 undecidable manual S 146 0.1052 126 0.99 56
IV.SSFR.HHZ. 2021-02-23T09:31:02.04 0.1 undecidable manual P 277 0.1736 114 -0.08 98
IV.FOSV.EHZ. 2021-02-23T09:31:02.80 0.1 undecidable manual P 237 0.2239 109 -0.37 92
IV.ARVD.HHZ. 2021-02-23T09:31:02.87 0.3 undecidable manual S 325 0.0989 127 0.16 74
IV.EL6.EHZ. 2021-02-23T09:31:00.86 0.1 undecidable manual P 146 0.1052 126 0.06 100
IV.ARVD.HHZ. 2021-02-23T09:31:00.85 0.1 undecidable manual P 325 0.0989 127 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHN. ML:1.2 0.0001935 0.96 AML other m 2021-02-23T09:31:03.88
IV.ARVD.HHE. ML:1.2 0.000224 1.86 AML other m 2021-02-23T09:31:04.96
IV.EL6.EHE. ML:1.7 0.0006505 0.36 AML other m 2021-02-23T09:31:05.48
IV.EL6.EHN. ML:1.8 0.0007645 0.36 AML other m 2021-02-23T09:31:05.33
IV.SSFR.HNN. ML:1.7 0.000361 1.1 AML other m 2021-02-23T09:31:06.34
IV.FOSV.EHN. ML:1.3 0.0001295 1.74 AML other m 2021-02-23T09:31:06.04
IV.FOSV.EHE. ML:1.2 0.00010185 1.8 AML other m 2021-02-23T09:31:07.01
IV.FRON.EHE. ML:1.2 9.175E-5 1.3 AML other m 2021-02-23T09:31:08.73
IV.SSFR.HHN. ML:1.7 0.0003915 0.26 AML other m 2021-02-23T09:31:08.48
IV.SSFR.HNE. ML:1.7 0.0003745 0.3 AML other m 2021-02-23T09:31:08.60
IV.SSFR.HHE. ML:1.6 0.0003515 0.26 AML other m 2021-02-23T09:31:08.62
IV.FRON.EHN. ML:1.4 0.000145 1.34 AML other m 2021-02-23T09:31:08.31
IV.MPAG.EHE. ML:1.1 5.525E-5 0.42 AML other m 2021-02-23T09:31:10.50
IV.ATCC.EHN. ML:1.8 0.0002135 0.86 AML other m 2021-02-23T09:31:12.63
IV.ATCC.EHE. ML:1.9 0.000285 0.22 AML other m 2021-02-23T09:31:12.46
IV.PIEI.HHN. ML:1.1 4.35E-5 0.78 AML other m 2021-02-23T09:31:13.48
IV.ATFO.HHE. ML:1.4 0.00010795 0.34 AML other m 2021-02-23T09:31:13.46
IV.MPAG.EHN. ML:1 4.88E-5 0.58 AML other m 2021-02-23T09:31:13.33
IV.FDMO.HHE. ML:1.6 0.00011655 0.16 AML other m 2021-02-23T09:31:13.43
IV.MURB.HHE. ML:2.2 0.0004585 0.24 AML other m 2021-02-23T09:31:14.19
IV.PIEI.HHE. ML:1.4 8.305E-5 1.1 AML other m 2021-02-23T09:31:14.28
IV.FDMO.HHN. ML:1.4 8.21E-5 0.54 AML other m 2021-02-23T09:31:14.29
IV.MURB.HHN. ML:2 0.0002955 0.28 AML other m 2021-02-23T09:31:14.77
IV.NARO.HHE. ML:1.1 4.005E-5 0.9 AML other m 2021-02-23T09:31:14.90
IV.NARO.HHN. ML:1.2 4.785E-5 0.78 AML other m 2021-02-23T09:31:15.94
IV.CSP1.EHN. ML:1.6 0.0001465 0.78 AML other m 2021-02-23T09:31:15.58
IV.ATFO.HHN. ML:1.2 6.45E-5 0.74 AML other m 2021-02-23T09:31:15.95
IV.ATVO.HHN. ML:1.1 3.705E-5 0.44 AML other m 2021-02-23T09:31:15.94
IV.CSP1.EHE. ML:1.6 0.0001425 0.7 AML other m 2021-02-23T09:31:16.51
IV.CESI.HHE. ML:1.4 6.785E-5 0.26 AML other m 2021-02-23T09:31:16.12
IV.ASSB.HHE. ML:1.4 6.4E-5 1.7 AML other m 2021-02-23T09:31:16.86
IV.ATVO.HHE. ML:1.3 4.86E-5 0.96 AML other m 2021-02-23T09:31:17.65
IV.ASSB.HHN. ML:1.4 6.24E-5 0.28 AML other m 2021-02-23T09:31:19.74
IV.CESI.HHN. ML:1.4 6.43E-5 0.3 AML other m 2021-02-23T09:31:19.47
IV.NRCA.HHN. ML:1.7 8.685E-5 1.16 AML other m 2021-02-23T09:31:20.81
IV.NRCA.HHE. ML:1.6 7.305E-5 0.16 AML other m 2021-02-23T09:31:20.88
IV.FIU.EHE. ML:3.5 0.00128 0.14 AML other m 2021-02-23T09:31:28.13
IV.FIU.EHN. ML:3.4 0.001026 0.12 AML other m 2021-02-23T09:31:28.25
IV.IMOL.HNN. ML:3.3 0.00119 0.06 AML other m 2021-02-23T09:31:47.57
IV.IMOL.HNE. ML:3.3 0.001001 0.8 AML other m 2021-02-23T09:31:48.57
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download