Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 24-07-2021 and time 21:52:02 (UTC) in region Costa Marchigiana Anconetana (Ancona)

A magnitude ML 1.9 earthquake occured in region: Costa Marchigiana Anconetana (Ancona), on

  • 24-07-2021 21:52:02 (UTC)
  • 24-07-2021 23:52:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6410, 13.4180 at 36 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
Falconara Marittima AN 3 26565 26565
Ancona AN 9 100861 127426
Chiaravalle AN 9 14796 142222
Camerata Picena AN 9 2567 144789
Montemarciano AN 9 9992 154781
Agugliano AN 11 4865 159646
Monte San Vito AN 13 6848 166494
Offagna AN 13 1935 168429
Polverigi AN 13 4508 172937
Monsano AN 16 3405 176342
Camerano AN 16 7322 183664
Morro d'Alba AN 17 1903 185567
Osimo AN 18 34977 220544
Senigallia AN 18 45027 265571
Santa Maria Nuova AN 18 4179 269750
San Marcello AN 18 2057 271807
Jesi AN 19 40399 312206

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km W of Ancona (100861 inhabitants)
39 Km SE of Fano (60888 inhabitants)
50 Km SE of Pesaro (94582 inhabitants)
83 Km SE of Rimini (147750 inhabitants)
96 Km NE of Foligno (57155 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 1.9 2021-07-24
21:52:02		 43.6408 13.4177 36 2021-12-29
11:12:17		 Bollettino Sismico Italiano INGV 93596851
Reviewed
Rev100 		ML 1.7 2021-07-24
21:52:03		 43.6367 13.4052 36 2021-07-24
22:01:26		 Sala Sismica INGV-Roma 93168451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-24 21:52:02 ± 0.09
Latitude 43.6408 ± 0.0045
Longitude 13.4177 ± 0.0062
Depth (km) 36 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93596851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 572
Semi-minor axis of confidence ellipse (meter) 430
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 37
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 57
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) 0.08903
Epicentral distance of station farthest from the epicenter (degree) 1.02163
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 93596851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-08-05 23:31:54

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 93168451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-24 22:01:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MC2.EHZ. 2021-07-24T21:52:28.53 0.6 undecidable manual S 193 82.9503 54 0.27 43
IV.ATCC.EHZ. 2021-07-24T21:52:27.91 0.6 undecidable manual S 231 80.4639 54 0.18 44
IV.PIEI.HHZ. 2021-07-24T21:52:26.30 0.6 undecidable manual S 261 71.8725 54 0.43 42
IV.MF5.EHZ. 2021-07-24T21:52:26.37 0.6 undecidable manual S 177 72.4719 54 0.36 44
IV.NARO.HHZ. 2021-07-24T21:52:25.05 0.6 undecidable manual S 267 67.2771 114 0.26 44
IV.FDMO.HHZ. 2021-07-24T21:52:25.79 0.3 undecidable manual S 202 72.1722 54 -0.13 67
IV.GUMA.HHZ. 2021-07-24T21:52:24.65 0.3 undecidable manual S 186 64.491 115 0.55 63
IV.MML1.EHZ. 2021-07-24T21:52:24.99 0.3 undecidable manual S 212 68.6757 114 -0.12 68
IV.MNTT.EHZ. 2021-07-24T21:52:24.88 0.6 undecidable manual S 167 65.7897 115 0.47 43
IV.FOSV.HNE. 2021-07-24T21:52:24.29 0.3 undecidable manual S 234 65.2902 115 -0.01 70
IV.SAP2.EHE. 2021-07-24T21:52:23.50 0.6 undecidable manual S 181 60.3951 117 0.38 44
IV.CSP1.EHZ. 2021-07-24T21:52:23.98 0.6 undecidable manual S 196 63.2922 116 0.17 46
IV.MNTP.HNZ. 2021-07-24T21:52:22.54 0.6 undecidable manual S 176 55.9995 119 0.46 44
IV.PF6.EHN. 2021-07-24T21:52:22.38 0.6 undecidable manual S 198 58.5969 118 -0.32 44
IV.FRON.EHZ. 2021-07-24T21:52:22.76 0.6 undecidable manual S 256 57.1983 118 0.38 44
IV.SSFR.HHN. 2021-07-24T21:52:22.10 0.3 undecidable manual S 246 55.8996 119 0.04 71
IV.MPAG.EHZ. 2021-07-24T21:52:21.76 0.6 undecidable manual S 269 52.8027 120 0.41 44
IV.SMA1.EHZ. 2021-07-24T21:52:21.29 0.3 undecidable manual P 183 112.2987 54 0.11 63
IV.GAVE.EHZ. 2021-07-24T21:52:21.74 0.1 undecidable manual P 202 113.3976 54 0.41 79
IV.CRTC.HNE. 2021-07-24T21:52:19.71 0.6 undecidable manual S 288 45.1215 125 0.09 47
IV.ASSB.HHZ. 2021-07-24T21:52:18.49 0.1 undecidable manual P 223 90.243 54 0.05 89
IV.COR1.EHZ. 2021-07-24T21:52:18.17 0.6 undecidable manual S 268 33.5442 134 0.95 36
IV.ARVD.HHZ. 2021-07-24T21:52:18.49 0.6 undecidable manual S 248 41.4252 128 -0.32 46
IV.NRCA.HHZ. 2021-07-24T21:52:18.74 0.1 positive manual P 195 92.8404 54 -0.02 88
IV.EL6.EHZ. 2021-07-24T21:52:18.85 0.6 undecidable manual S 216 42.9237 127 -0.28 46
IV.TRE1.HNE. 2021-07-24T21:52:18.16 0.6 undecidable manual S 193 37.5291 131 0.14 48
IV.ATCC.EHZ. 2021-07-24T21:52:17.14 0.1 undecidable manual P 231 80.4639 54 -0.09 90
IV.ATPI.EHZ. 2021-07-24T21:52:17.90 0.1 undecidable manual P 256 84.3489 54 0.19 87
IV.MC2.EHZ. 2021-07-24T21:52:17.43 0.1 undecidable manual P 193 82.9503 54 -0.11 88
IV.CING.HHZ. 2021-07-24T21:52:16.99 0.3 undecidable manual S 211 34.4433 133 -0.4 69
IV.MF5.EHZ. 2021-07-24T21:52:16.32 0.1 negative manual P 177 72.4719 54 0.08 92
IV.MNTT.EHZ. 2021-07-24T21:52:15.77 0.3 undecidable manual P 167 65.7897 115 0.45 64
IV.GUMA.HHZ. 2021-07-24T21:52:15.23 0.1 positive manual P 186 64.491 115 0.09 93
IV.PIEI.HHZ. 2021-07-24T21:52:15.87 0.1 undecidable manual P 261 71.8725 54 -0.29 88
IV.NARO.HHZ. 2021-07-24T21:52:15.44 0.1 positive manual P 267 67.2771 114 -0.09 93
IV.MML1.EHZ. 2021-07-24T21:52:15.33 0.1 positive manual P 212 68.6757 114 -0.39 86
IV.FDMO.HHZ. 2021-07-24T21:52:15.62 0.1 undecidable manual P 202 72.1722 54 -0.57 80
IV.CSP1.EHZ. 2021-07-24T21:52:14.54 0.1 positive manual P 196 63.2922 116 -0.43 86
IV.FOSV.HNE. 2021-07-24T21:52:14.82 0.3 undecidable manual P 234 65.2902 115 -0.43 65
IV.FRON.EHZ. 2021-07-24T21:52:14.02 0.3 undecidable manual P 256 57.1983 118 -0.12 70
IV.AOI.HHZ. 2021-07-24T21:52:14.55 0.3 undecidable manual S 124 17.871 152 -0.14 74
IV.SAP2.EHE. 2021-07-24T21:52:14.86 0.3 undecidable manual P 181 60.3951 117 0.29 67
IV.SENI.EHZ. 2021-07-24T21:52:14.81 0.6 undecidable manual S 296 16.4724 154 0.31 48
IV.MNTP.HNZ. 2021-07-24T21:52:14.40 0.3 undecidable manual P 176 55.9995 119 0.43 66
IV.SSFR.HHN. 2021-07-24T21:52:13.72 0.1 positive manual P 246 55.8996 119 -0.24 91
IV.MPAG.EHZ. 2021-07-24T21:52:13.49 0.1 positive manual P 269 52.8027 120 -0.06 96
IV.PF6.EHN. 2021-07-24T21:52:13.85 0.6 undecidable manual P 198 58.5969 118 -0.48 43
IV.PCRO.HNZ. 2021-07-24T21:52:13.84 0.3 undecidable manual S 112 9.879 164 -0.03 77
IV.EL6.EHZ. 2021-07-24T21:52:12.00 0.1 positive manual P 216 42.9237 127 -0.27 93
IV.CRTC.HNE. 2021-07-24T21:52:12.78 0.6 undecidable manual P 288 45.1215 125 0.23 46
IV.COR1.EHZ. 2021-07-24T21:52:11.60 0.1 positive manual P 268 33.5442 134 0.44 90
IV.TRE1.HNE. 2021-07-24T21:52:11.44 0.6 undecidable manual P 193 37.5291 131 -0.18 47
IV.ARVD.HHZ. 2021-07-24T21:52:11.78 0.1 positive manual P 248 41.4252 128 -0.31 93
IV.CING.HHZ. 2021-07-24T21:52:10.89 0.1 positive manual P 211 34.4433 133 -0.38 92
IV.SENI.EHZ. 2021-07-24T21:52:09.72 0.3 undecidable manual P 296 16.4724 154 0.12 75
IV.AOI.HHZ. 2021-07-24T21:52:09.61 0.1 undecidable manual P 124 17.871 152 -0.09 100
IV.PCRO.HNZ. 2021-07-24T21:52:09.03 0.3 undecidable manual P 112 9.879 164 -0.2 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AOI.HHE. ML:1.6 0.00014986585 0.128 AML other m 2021-07-24T21:52:14.69
IV.SENI.EHE. ML:1.7 0.00017879594999999998 0.1152 AML other m 2021-07-24T21:52:15.85
IV.SENI.HNN. ML:2.3 0.00069985075 0.1664 AML other m 2021-07-24T21:52:16.06
IV.AOI.HHN. ML:1.4 0.00009867631 0.1536 AML other m 2021-07-24T21:52:15.92
IV.CING.HHE. ML:1.4 0.000074612085 0.2432 AML other m 2021-07-24T21:52:17.06
IV.CING.HHN. ML:1.7 0.000137 0.2 AML other m 2021-07-24T21:52:17.27
IV.ARVD.HHN. ML:1.4 0.000057749999999999994 0.36 AML other m 2021-07-24T21:52:18.50
IV.COR1.EHN. ML:2.2 0.0004592395 0.192 AML other m 2021-07-24T21:52:18.73
IV.COR1.EHE. ML:2.2 0.00040826470000000006 0.2304 AML other m 2021-07-24T21:52:18.78
IV.EL6.EHE. ML:1.9 0.00018449999999999999 0.3 AML other m 2021-07-24T21:52:19.13
IV.ARVD.HHE. ML:1.5 0.0000802 0.32 AML other m 2021-07-24T21:52:19.17
IV.EL6.EHN. ML:1.8 0.00016189999999999998 1.06 AML other m 2021-07-24T21:52:20.91
IV.MPAG.HNE. ML:2.5 0.0005555237000000001 0.7296 AML other m 2021-07-24T21:52:21.37
IV.MPAG.HNN. ML:2.5 0.0006365 0.78 AML other m 2021-07-24T21:52:21.37
IV.MPAG.EHE. ML:1.7 0.00009197664999999999 0.256 AML other m 2021-07-24T21:52:22.18
IV.MPAG.EHN. ML:1.5 0.00006712887 0.4992 AML other m 2021-07-24T21:52:22.09
IV.CSP1.EHE. ML:2.3 0.0003045437 0.2048 AML other m 2021-07-24T21:52:24.16
IV.GUMA.HNE. ML:2.3 0.00028412095 0.4352 AML other m 2021-07-24T21:52:24.92
IV.GUMA.HHN. ML:2.4 0.0003695 0.26 AML other m 2021-07-24T21:52:25.14
IV.MML1.EHE. ML:1.9 0.000111 0.2 AML other m 2021-07-24T21:52:25.75
IV.MML1.EHN. ML:1.9 0.0001046 0.26 AML other m 2021-07-24T21:52:25.89
IV.FDMO.HHE. ML:1.7 0.00007474478 0.1792 AML other m 2021-07-24T21:52:26.03
IV.MML1.HNN. ML:2.0 0.00016072101 0.5248 AML other m 2021-07-24T21:52:25.88
IV.NARO.HHE. ML:1.5 0.000044649999999999994 0.28 AML other m 2021-07-24T21:52:26.31
IV.CSP1.EHN. ML:2.2 0.00024647985 0.2048 AML other m 2021-07-24T21:52:26.52
IV.NARO.HHN. ML:1.2 0.000023527475 0.2048 AML other m 2021-07-24T21:52:26.55
IV.PIEI.HHN. ML:1.5 0.000043563415 0.2048 AML other m 2021-07-24T21:52:27.31
IV.MF5.EHE. ML:2.1 0.0001805 0.24 AML other m 2021-07-24T21:52:27.29
IV.MF5.EHN. ML:2.1 0.00017195695 0.2304 AML other m 2021-07-24T21:52:27.80
IV.FDMO.HHN. ML:1.8 0.0000916 0.14 AML other m 2021-07-24T21:52:28.12
IV.MNTT.EHN. ML:2.5 0.0005126335499999999 0.3584 AML other m 2021-07-24T21:52:28.11
IV.MNTT.EHE. ML:2.8 0.00107 0.14 AML other m 2021-07-24T21:52:28.66
IV.PIEI.HHE. ML:1.6 0.00005153344 0.1408 AML other m 2021-07-24T21:52:28.00
IV.ATCC.EHE. ML:2.3 0.00022786109999999997 0.2816 AML other m 2021-07-24T21:52:29.39
IV.ATCC.EHN. ML:2.3 0.000224 0.3 AML other m 2021-07-24T21:52:29.57
IV.ATPI.EHE. ML:1.6 0.0000443 0.36 AML other m 2021-07-24T21:52:30.68
IV.ASSB.HHE. ML:2.5 0.00030248815 0.3328 AML other m 2021-07-24T21:52:31.44
IV.ASSB.HHN. ML:2.4 0.000253 0.26 AML other m 2021-07-24T21:52:31.42
IV.ATPI.EHN. ML:1.2 0.00002075138 0.256 AML other m 2021-07-24T21:52:31.97
IV.NRCA.HNE. ML:2.0 0.000105756845 0.1408 AML other m 2021-07-24T21:52:33.36
IV.NRCA.HHE. ML:2.1 0.00013550000000000001 0.14 AML other m 2021-07-24T21:52:33.43
IV.NRCA.HHN. ML:2.2 0.0001385 0.14 AML other m 2021-07-24T21:52:34.64
IV.GAVE.EHE. ML:2.0 0.00008732327 0.3328 AML other m 2021-07-24T21:52:37.66
IV.SMA1.EHE. ML:1.7 0.000035533795 0.32 AML other m 2021-07-24T21:52:38.01
IV.GAVE.EHN. ML:2.0 0.00007207505000000001 0.2048 AML other m 2021-07-24T21:52:38.16
IV.SMA1.EHN. ML:1.7 0.000032781975000000004 0.256 AML other m 2021-07-24T21:52:41.53
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