Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 26-09-2021 and time 23:12:44 (Italy) in region 3 km SW Belforte all'Isauro (PU)

A magnitude ML 1.5 earthquake occured in region: 3 km SW Belforte all'Isauro (PU), on

  • 26-09-2021 21:12:44 (UTC)
  • 26-09-2021 23:12:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6990, 12.3430 at 9 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Belforte all'Isauro PU 4 769 769
Sestino AR 4 1355 2124
Mercatello sul Metauro PU 6 1378 3502
Borgo Pace PU 6 606 4108
Piandimeleto PU 7 2167 6275
Sant'Angelo in Vado PU 7 4133 10408
Frontino PU 8 293 10701
Lunano PU 9 1527 12228
Carpegna PU 9 1674 13902
Pietrarubbia PU 12 660 14562
Peglio PU 12 696 15258
Badia Tedalda AR 13 1087 16345
Macerata Feltria PU 14 1990 18335
Pennabilli RN 15 2869 21204
Urbania PU 15 7099 28303
Sassocorvaro PU 15 3504 31807
Montecopiolo PU 16 1128 32935
Apecchio PU 17 1882 34817
Monte Cerignone PU 17 669 35486
Piobbico PU 18 2029 37515
Casteldelci RN 18 407 37922
Maiolo RN 20 848 38770

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km SW of Rimini (147750 inhabitants)
45 Km NE of Arezzo (99543 inhabitants)
49 Km S of Cesena (96758 inhabitants)
52 Km W of Pesaro (94582 inhabitants)
57 Km W of Fano (60888 inhabitants)
63 Km SE of Forlì (117913 inhabitants)
66 Km N of Perugia (166134 inhabitants)
75 Km SE of Faenza (58541 inhabitants)
81 Km S of Ravenna (159116 inhabitants)
88 Km NW of Foligno (57155 inhabitants)
88 Km E of Firenze (382808 inhabitants)
89 Km SE of Imola (69797 inhabitants)
92 Km E of Siena (53903 inhabitants)
94 Km E of Scandicci (50609 inhabitants)
95 Km W of Ancona (100861 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.5 2021-09-26
21:12:44		 43.6987 12.3427 9 2022-03-30
13:04:11		 Bollettino Sismico Italiano INGV 96598131
Reviewed
Rev100 		ML 1.6 2021-09-26
21:12:44		 43.6907 12.3467 10 2021-09-26
21:18:17		 Sala Sismica INGV-Roma 95918741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-26 21:12:44 ± 0.06
Latitude 43.6987 ± 0.0036
Longitude 12.3427 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96598131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 381
Semi-minor axis of confidence ellipse (meter) 320
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) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 51
Number of associated phases, regardless of their use for origin computation 58
Number of defining phases 58
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.06115
Epicentral distance of station farthest from the epicenter (degree) 0.87144
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 36
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 95918741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-26 21:18:17

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 96598131
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-15 07:08:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2021-09-26T21:13:05.10 0.6 undecidable manual S 157 61.7937 50 0.91 35
IV.ARVD.HHZ. 2021-09-26T21:13:02.65 0.3 undecidable manual S 115 53.0025 50 0.8 56
IV.CAFI.HHZ. 2021-09-26T21:13:01.84 0.3 undecidable manual S 217 50.9157 50 0.54 63
IV.CSP1.EHZ. 2021-09-26T21:13:01.84 0.6 undecidable manual P 134 96.7254 50 0.43 39
IV.ASQU.HHZ. 2021-09-26T21:13:00.05 0.6 undecidable manual S 284 45.621 50 0.16 46
IV.FDMO.HHN. 2021-09-26T21:13:00.99 0.6 undecidable manual P 140 94.8384 50 -0.14 42
IV.MML1.HNE. 2021-09-26T21:12:59.01 0.6 undecidable manual P 142 82.3509 50 -0.19 43
IV.SSFR.HHZ. 2021-09-26T21:12:59.87 0.6 undecidable manual S 129 45.8208 50 -0.05 47
IV.CING.HNZ. 2021-09-26T21:12:59.01 0.6 undecidable manual P 117 77.367 50 0.58 39
IV.CRTC.HHZ. 2021-09-26T21:12:59.89 0.6 undecidable manual S 80 44.0226 50 0.45 43
IV.ATMI.HHZ. 2021-09-26T21:12:58.79 0.6 undecidable manual S 188 40.8258 50 0.18 46
IV.FRON.EHZ. 2021-09-26T21:12:57.63 0.6 undecidable manual S 123 36.741 50 0.13 47
IV.TB01.DHZ.01 2021-09-26T21:12:57.41 0.6 undecidable manual S 168 35.9418 50 0.11 47
IV.SNTG.HHE. 2021-09-26T21:12:57.07 0.6 undecidable manual P 135 68.8755 50 -0.05 45
IV.TB02.DHZ.01 2021-09-26T21:12:57.94 0.6 undecidable manual S 172 36.8298 50 0.41 44
IV.MPAG.EHZ. 2021-09-26T21:12:56.62 0.6 undecidable manual S 103 34.3434 50 -0.25 46
IV.ATCC.EHZ. 2021-09-26T21:12:56.08 0.3 undecidable manual P 157 61.7937 50 0.05 69
IV.CRE.HHZ. 2021-09-26T21:12:56.49 0.3 undecidable manual S 254 32.6451 50 0.09 72
IV.ATBU.EHZ. 2021-09-26T21:12:56.08 0.6 undecidable manual S 146 29.748 50 0.44 45
IV.COR1.HNN. 2021-09-26T21:12:55.12 0.6 undecidable manual P 98 53.3022 50 0.4 43
IV.MURB.HHZ. 2021-09-26T21:12:54.23 0.6 undecidable manual P 163 50.5161 50 -0.06 47
IV.ATPC.HNZ. 2021-09-26T21:12:54.58 0.6 undecidable manual S 159 25.8519 110 0.15 48
IV.ATPI.EHZ. 2021-09-26T21:12:54.98 0.6 undecidable manual S 170 27.9498 109 -0.12 48
IV.CAFI.HHZ. 2021-09-26T21:12:54.34 0.3 undecidable manual P 217 50.9157 50 -0.02 70
IV.ARVD.HHZ. 2021-09-26T21:12:54.34 0.3 undecidable manual P 115 53.0025 50 -0.33 66
IV.ATVA.EHE. 2021-09-26T21:12:53.92 0.6 undecidable manual P 186 46.8198 50 0.2 46
IV.SSP9.EHZ. 2021-09-26T21:12:53.31 0.6 undecidable manual S 231 21.867 113 0.17 48
IV.ASQU.HHZ. 2021-09-26T21:12:53.17 0.3 undecidable manual P 284 45.621 50 -0.37 66
IV.PESA.HHZ. 2021-09-26T21:12:53.70 0.6 undecidable manual P 56 48.0186 50 -0.21 45
IV.SSFR.HHZ. 2021-09-26T21:12:53.27 0.3 undecidable manual P 129 45.8208 50 -0.29 67
IV.SFI.HNN. 2021-09-26T21:12:53.12 0.3 undecidable manual P 300 45.8208 50 -0.45 65
IV.ATMI.HHZ. 2021-09-26T21:12:52.60 0.6 undecidable manual P 188 40.8258 50 -0.2 46
IV.TB02.DHZ.01 2021-09-26T21:12:52.13 0.3 undecidable manual P 172 36.8298 50 -0.05 72
IV.CRTC.HHZ. 2021-09-26T21:12:52.71 0.6 undecidable manual P 80 44.0226 50 -0.58 42
IV.ATLO.EHE. 2021-09-26T21:12:52.84 0.6 undecidable manual P 173 42.8238 50 -0.27 45
IV.NARO.HHZ. 2021-09-26T21:12:52.72 0.3 undecidable manual S 117 21.4674 114 -0.28 70
IV.TB01.DHZ.01 2021-09-26T21:12:51.77 0.3 undecidable manual P 168 35.9418 50 -0.28 69
IV.MPAG.EHZ. 2021-09-26T21:12:51.32 0.6 undecidable manual P 103 34.3434 50 -0.48 44
IV.RSM2.HHZ. 2021-09-26T21:12:51.14 0.3 undecidable manual P 17 27.75 109 0.39 68
IV.TB03.DHZ.01 2021-09-26T21:12:51.36 0.3 undecidable manual P 171 33.4443 50 -0.3 68
IV.APEC.HHZ. 2021-09-26T21:12:51.88 0.3 undecidable manual S 158 16.7721 119 0.34 70
IV.FRON.EHZ. 2021-09-26T21:12:51.82 0.6 undecidable manual P 123 36.741 50 -0.35 45
IV.CRE.HHZ. 2021-09-26T21:12:51.30 0.3 undecidable manual P 254 32.6451 50 -0.23 70
IV.ATPI.EHZ. 2021-09-26T21:12:50.54 0.1 positive manual P 170 27.9498 109 -0.24 93
IV.ATBU.EHZ. 2021-09-26T21:12:50.92 0.3 undecidable manual P 146 29.748 50 -0.17 71
IV.PE3.EHZ. 2021-09-26T21:12:50.59 0.6 undecidable manual S 91 12.2766 127 0.34 47
IV.CPGN.EHZ. 2021-09-26T21:12:50.87 0.6 undecidable manual S 351 11.4774 129 0.83 40
IV.ATMC.EHE. 2021-09-26T21:12:50.86 0.3 undecidable manual P 203 30.4473 50 -0.34 68
IV.ATPC.HNZ. 2021-09-26T21:12:50.30 0.3 undecidable manual P 159 25.8519 110 -0.09 72
IV.NARO.HHZ. 2021-09-26T21:12:49.10 0.3 undecidable manual P 117 21.4674 114 -0.47 67
IV.SSP9.EHZ. 2021-09-26T21:12:49.69 0.3 positive manual P 231 21.867 113 0.04 74
IV.PARC.HHZ. 2021-09-26T21:12:49.77 0.6 undecidable manual S 236 9.9789 133 0.12 49
IV.APEC.HHZ. 2021-09-26T21:12:48.78 0.1 positive manual P 158 16.7721 119 0.06 99
IV.SAIV.HNZ. 2021-09-26T21:12:48.65 0.6 undecidable manual S 124 6.7932 144 -0.25 48
IV.CPGN.EHZ. 2021-09-26T21:12:48.07 0.1 positive manual P 351 11.4774 129 0.22 97
IV.SAIV.HNZ. 2021-09-26T21:12:47.08 0.6 undecidable manual P 124 6.7932 144 -0.12 50
IV.PARC.HHZ. 2021-09-26T21:12:47.69 0.1 positive manual P 236 9.9789 133 0.06 100
IV.PE3.EHZ. 2021-09-26T21:12:47.98 0.3 undecidable manual P 91 12.2766 127 -0.01 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHN. ML:1.6 0.0004886348 0.0768 AML other m 2021-09-26T21:12:49.90
IV.PARC.HHE. ML:1.5 0.00039 0.3 AML other m 2021-09-26T21:12:49.80
IV.CPGN.EHN. ML:1.7 0.0005574999999999999 1.82 AML other m 2021-09-26T21:12:50.99
IV.CPGN.EHE. ML:1.6 0.0005065683 0.2432 AML other m 2021-09-26T21:12:52.19
IV.CPGN.HNN. ML:1.6 0.0005023603 0.1024 AML other m 2021-09-26T21:12:51.58
IV.CPGN.HNE. ML:1.7 0.0005902264500000001 0.2944 AML other m 2021-09-26T21:12:52.18
IV.PE3.EHE. ML:1.7 0.0006321907500000001 0.1536 AML other m 2021-09-26T21:12:51.34
IV.PE3.EHN. ML:1.9 0.0009108241999999999 0.2816 AML other m 2021-09-26T21:12:50.81
IV.APEC.HHE. ML:2.0 0.0008855 0.14 AML other m 2021-09-26T21:12:52.10
IV.APEC.HHN. ML:1.8 0.000535 0.12 AML other m 2021-09-26T21:12:53.23
IV.NARO.HHN. ML:1.8 0.00041250000000000005 0.06 AML other m 2021-09-26T21:12:53.61
IV.NARO.HHE. ML:1.4 0.0001899651 0.064 AML other m 2021-09-26T21:12:53.80
IV.SSP9.EHN. ML:1.4 0.0001705 0.64 AML other m 2021-09-26T21:12:54.88
IV.CRE.HHN. ML:1.6 0.000191 0.18 AML other m 2021-09-26T21:12:56.75
IV.CRE.HHE. ML:1.5 0.000148 0.16 AML other m 2021-09-26T21:12:56.89
IV.ATPI.EHN. ML:1.3 0.000097799985 0.2432 AML other m 2021-09-26T21:12:57.33
IV.FRON.EHN. ML:1.6 0.000133188 0.1024 AML other m 2021-09-26T21:13:00.06
IV.FRON.EHE. ML:1.2 0.00005936971 0.1024 AML other m 2021-09-26T21:12:59.63
IV.ATMI.HHE. ML:1.4 0.000090626865 0.1408 AML other m 2021-09-26T21:13:00.13
IV.ASQU.HHE. ML:1.1 0.0000371963345 0.192 AML other m 2021-09-26T21:13:00.75
IV.CAFI.HHN. ML:1.3 0.0000550179945 0.2048 AML other m 2021-09-26T21:13:02.51
IV.CAFI.HHE. ML:1.3 0.000056302945 0.3584 AML other m 2021-09-26T21:13:02.56
IV.MURB.HHE. ML:1.6 0.00011558260000000001 0.256 AML other m 2021-09-26T21:13:05.72
IV.ASQU.HHN. ML:1.0 0.0000292340265 0.1664 AML other m 2021-09-26T21:13:01.09
IV.APEC.HNE. ML:2.0 0.0010116529000000001 0.1664 AML other m 2021-09-26T21:12:52.08
IV.APEC.HNN. ML:1.8 0.00061831846 0.6784 AML other m 2021-09-26T21:12:51.81
IV.ATPI.HNE. ML:1.3 0.00009831131 0.2944 AML other m 2021-09-26T21:12:57.51
IV.MPAG.EHE. ML:1.2 0.00006203863 0.1152 AML other m 2021-09-26T21:12:57.76
IV.MPAG.HNE. ML:1.3 0.00008719953499999999 0.1408 AML other m 2021-09-26T21:12:57.51
IV.MPAG.EHN. ML:1.2 0.000072166615 0.1152 AML other m 2021-09-26T21:12:57.46
IV.ARVD.HHE. ML:1.3 0.00004342054 0.1792 AML other m 2021-09-26T21:13:04.85
IV.ARVD.HHN. ML:1.3 0.00004961938 0.128 AML other m 2021-09-26T21:13:03.23
IV.CAFI.HNE. ML:1.4 0.000058870131 0.3584 AML other m 2021-09-26T21:13:02.56
IV.CAFI.HNN. ML:1.3 0.00005044328 0.192 AML other m 2021-09-26T21:13:02.52
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