Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 27-08-2021 and time 15:10:02 (Italy) in region Costa Marchigiana Anconetana (Ancona)

A magnitude ML 2.2 earthquake occured in region: Costa Marchigiana Anconetana (Ancona), on

  • 27-08-2021 13:10:02 (UTC)
  • 27-08-2021 15:10:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9740, 13.5610 at 33 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km N of Ancona (100861 inhabitants)
46 Km E of Fano (60888 inhabitants)
52 Km E of Pesaro (94582 inhabitants)
80 Km E of Rimini (147750 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 2.2 2021-08-27
13:10:02		 43.9737 13.561 33 2021-12-29
11:12:28		 Bollettino Sismico Italiano INGV 95235741
Reviewed
Rev100 		ML 2.3 2021-08-27
13:10:02		 43.9903 13.6003 34 2021-08-27
13:23:46		 Sala Sismica INGV-Roma 94707831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-27 13:10:02 ± 0.22
Latitude 43.9737 ± 0.0126
Longitude 13.5610 ± 0.0137
Depth (km) 33 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95235741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1578
Semi-minor axis of confidence ellipse (meter) 879
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 210
Circular confidence region, given by single value of horizontal uncertainty (meter) 1580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 266
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.35793
Epicentral distance of station farthest from the epicenter (degree) 1.32110
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:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 95235741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-23 11:11:16

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 34
Type of magnitude ML
Reference to an origin 94707831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-27 13:23:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2021-08-27T13:10:35.52 0.6 undecidable manual S 184 109.6125 54 0.9 36
IV.MML1.EHZ. 2021-08-27T13:10:33.85 0.6 undecidable manual S 207 106.5156 54 -0.09 48
IV.CSP1.EHZ. 2021-08-27T13:10:32.86 0.6 undecidable manual S 196 101.9202 54 -0.09 49
IV.ATBU.EHZ. 2021-08-27T13:10:32.72 0.6 undecidable manual S 236 98.2239 54 0.57 41
IV.ATSC.EHE. 2021-08-27T13:10:31.52 0.6 undecidable manual S 229 92.9403 105 0.53 43
IV.PF6.EHZ. 2021-08-27T13:10:31.60 1.0 undecidable manual S 198 97.2249 54 -0.35 24
IV.PE3.EHZ. 2021-08-27T13:10:30.97 1.0 undecidable manual S 250 90.5427 106 0.58 22
IV.NARO.HHZ. 2021-08-27T13:10:29.46 0.6 undecidable manual S 243 88.245 106 -0.32 48
IV.FRON.EHZ. 2021-08-27T13:10:29.20 1.0 undecidable manual S 233 83.8494 107 0.53 22
IV.EL6.EHZ. 2021-08-27T13:10:27.80 1.0 undecidable manual S 207 80.4639 108 0.01 25
IV.MPAG.EHZ. 2021-08-27T13:10:26.02 0.6 undecidable manual S 240 74.6697 109 -0.31 49
IV.CAFI.HHZ. 2021-08-27T13:10:26.97 0.3 undecidable manual P 241 146.6421 54 1.14 45
IV.CING.HHZ. 2021-08-27T13:10:25.54 0.6 undecidable manual S 204 72.5718 110 -0.25 49
IV.ARVD.HHE. 2021-08-27T13:10:25.07 0.6 undecidable manual S 223 72.4719 110 -0.7 44
IV.ATVA.EHE. 2021-08-27T13:10:24.27 1.0 undecidable manual P 233 128.1717 54 0.73 19
IV.NRCA.HHZ. 2021-08-27T13:10:23.68 0.3 undecidable manual P 196 131.4684 54 -0.27 66
IV.ASSB.HHZ. 2021-08-27T13:10:23.39 0.6 undecidable manual P 215 126.2736 54 0.1 46
IV.ATLO.EHE. 2021-08-27T13:10:22.65 0.6 undecidable manual P 232 117.993 54 0.38 44
IV.CRTC.HHZ. 2021-08-27T13:10:22.30 0.3 undecidable manual S 247 58.7967 114 -0.09 79
IV.PESA.HHZ. 2021-08-27T13:10:22.50 0.3 undecidable manual S 267 57.6978 115 0.38 74
IV.MC2.EHZ. 2021-08-27T13:10:22.73 0.3 undecidable manual P 194 121.5894 54 0.01 70
IV.COR1.EHZ. 2021-08-27T13:10:22.90 1.0 undecidable manual S 230 58.7967 115 0.51 24
IV.ATPI.EHZ. 2021-08-27T13:10:21.70 0.6 undecidable manual P 238 109.5126 54 0.48 43
IV.ATCC.EHZ. 2021-08-27T13:10:21.55 0.3 undecidable manual P 221 114.5964 54 -0.29 68
IV.ATVO.HHN. 2021-08-27T13:10:21.84 0.3 undecidable manual P 235 113.4975 54 0.13 70
IV.MML1.EHZ. 2021-08-27T13:10:21.01 0.3 undecidable manual P 207 106.5156 54 0.17 70
IV.PARC.HHZ. 2021-08-27T13:10:21.05 0.3 undecidable manual P 252 111.7992 54 -0.45 66
IV.TB02.DHZ.01 2021-08-27T13:10:21.88 0.3 undecidable manual P 234 114.0969 54 0.1 70
IV.TB03.DHZ.01 2021-08-27T13:10:21.12 0.3 undecidable manual P 236 111.999 54 -0.41 67
IV.MF5.EHZ. 2021-08-27T13:10:20.85 0.3 undecidable manual P 184 109.6125 54 -0.38 67
IV.ATPC.HHE. 2021-08-27T13:10:20.14 0.3 undecidable manual P 239 104.0181 54 -0.39 68
IV.ATFO.HHN. 2021-08-27T13:10:20.73 0.3 undecidable manual P 230 104.118 54 0.19 70
IV.TB01.DHZ.01 2021-08-27T13:10:20.32 0.3 undecidable manual P 234 111.5994 54 -1.16 50
IV.CSP1.EHZ. 2021-08-27T13:10:20.02 0.3 undecidable manual P 196 101.9202 54 -0.25 70
IV.MNTT.EHZ. 2021-08-27T13:10:20.93 0.3 undecidable manual P 178 101.121 54 0.75 60
IV.ATBU.EHZ. 2021-08-27T13:10:19.10 0.3 undecidable manual P 236 98.2239 54 -0.7 62
IV.PF6.EHZ. 2021-08-27T13:10:19.68 0.3 undecidable manual P 198 97.2249 54 -0.01 74
IV.APEC.HNN. 2021-08-27T13:10:19.75 0.3 undecidable manual P 244 102.3198 54 -0.57 65
IV.AOI.HHZ. 2021-08-27T13:10:19.30 0.6 undecidable manual S 176 47.1195 120 -0.31 50
IV.FRON.EHZ. 2021-08-27T13:10:18.03 0.6 undecidable manual P 233 83.8494 107 0.23 49
IV.PE3.EHZ. 2021-08-27T13:10:18.65 0.3 undecidable manual P 250 90.5427 106 -0.14 73
IV.ATSC.EHE. 2021-08-27T13:10:18.21 0.3 undecidable manual P 229 92.9403 105 -0.93 57
IV.NARO.HHZ. 2021-08-27T13:10:18.61 0.3 undecidable manual P 243 88.245 106 0.17 73
IV.SENI.EHZ. 2021-08-27T13:10:17.47 0.3 undecidable manual S 222 39.7269 125 -0.49 74
IV.CIMA.HNE. 2021-08-27T13:10:17.51 0.6 undecidable manual P 173 74.6697 109 1.07 38
IV.EL6.EHZ. 2021-08-27T13:10:17.20 0.1 undecidable manual P 207 80.4639 108 -0.09 100
IV.MPAG.EHZ. 2021-08-27T13:10:16.33 0.3 undecidable manual P 240 74.6697 109 -0.12 75
IV.CING.HHZ. 2021-08-27T13:10:16.15 0.3 undecidable manual P 204 72.5718 110 0.01 78
IV.ARVD.HHE. 2021-08-27T13:10:15.78 0.3 undecidable manual P 223 72.4719 110 -0.34 72
IV.COR1.EHZ. 2021-08-27T13:10:14.51 0.3 undecidable manual P 230 58.7967 115 0.34 75
IV.CRTC.HHZ. 2021-08-27T13:10:14.48 0.3 undecidable manual P 247 58.7967 114 0.3 76
IV.PESA.HHZ. 2021-08-27T13:10:14.59 0.3 undecidable manual P 267 57.6978 115 0.57 71
IV.AOI.HHZ. 2021-08-27T13:10:12.96 0.3 undecidable manual P 176 47.1195 120 0.39 77
IV.SENI.EHZ. 2021-08-27T13:10:11.76 0.6 undecidable manual P 222 39.7269 125 0.15 54
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRTC.HHN. ML:2.4 0.00041049999999999995 0.7 AML other m 2021-08-27T13:10:22.75
IV.CRTC.HHE. ML:2.4 0.0004335 1.18 AML other m 2021-08-27T13:10:22.39
IV.CING.HHN. ML:2.1 0.000182 0.82 AML other m 2021-08-27T13:10:26.47
IV.CING.HHE. ML:2.0 0.00014250000000000002 0.52 AML other m 2021-08-27T13:10:26.44
IV.MPAG.EHN. ML:1.9 0.0001102 0.7 AML other m 2021-08-27T13:10:27.72
IV.MPAG.EHE. ML:1.9 0.00011654999999999999 0.18 AML other m 2021-08-27T13:10:27.76
IV.FRON.EHN. ML:2.0 0.00011399999999999999 0.58 AML other m 2021-08-27T13:10:29.82
IV.NARO.HHN. ML:1.8 0.0000701 0.78 AML other m 2021-08-27T13:10:30.03
IV.NARO.HHE. ML:1.9 0.00008645 0.92 AML other m 2021-08-27T13:10:30.23
IV.FRON.EHE. ML:1.8 0.00006645 0.76 AML other m 2021-08-27T13:10:30.89
IV.PE3.EHN. ML:2.3 0.00023066185 0.2752 AML other m 2021-08-27T13:10:31.99
IV.PE3.EHE. ML:2.4 0.00027749999999999997 0.42 AML other m 2021-08-27T13:10:32.87
IV.CSP1.EHN. ML:2.7 0.00044899999999999996 0.48 AML other m 2021-08-27T13:10:34.14
IV.CSP1.EHE. ML:2.8 0.0005405 0.46 AML other m 2021-08-27T13:10:34.31
IV.MML1.EHE. ML:2.1 0.00010475000000000001 0.8 AML other m 2021-08-27T13:10:34.66
IV.MML1.EHN. ML:2.2 0.0001255 0.42 AML other m 2021-08-27T13:10:34.72
IV.MNTT.EHN. ML:2.9 0.0007070000000000001 0.36 AML other m 2021-08-27T13:10:36.03
IV.MNTT.EHE. ML:2.6 0.00037227385 0.32 AML other m 2021-08-27T13:10:36.52
IV.MF5.EHN. ML:2.5 0.0002515 1.4 AML other m 2021-08-27T13:10:36.05
IV.PARC.HHE. ML:2.0 0.00006769999999999999 0.62 AML other m 2021-08-27T13:10:36.81
IV.ATCC.EHN. ML:2.1 0.00008975 0.48 AML other m 2021-08-27T13:10:36.72
IV.ATCC.EHE. ML:2.1 0.00009084587499999999 0.5568 AML other m 2021-08-27T13:10:36.98
IV.MF5.EHE. ML:2.4 0.000199 1.06 AML other m 2021-08-27T13:10:37.66
IV.PARC.HHN. ML:2.0 0.00007024999999999999 1.38 AML other m 2021-08-27T13:10:38.16
IV.ASSB.HHE. ML:2.2 0.00010564999999999999 1.74 AML other m 2021-08-27T13:10:39.97
IV.ASSB.HHN. ML:2.1 0.00007717141499999999 1.1008 AML other m 2021-08-27T13:10:39.92
IV.NRCA.HHE. ML:2.3 0.00011199999999999998 0.14 AML other m 2021-08-27T13:10:43.68
IV.NRCA.HHN. ML:2.3 0.0001175 0.46 AML other m 2021-08-27T13:10:44.62
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
Waveforms Seismic signals in miniseed + resp format Download