Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 20-08-2021 and time 01:00:03 (Italy) in region Costa Marchigiana Pesarese (Pesaro Urbino)

A magnitude ML 1.4 earthquake occured in region: Costa Marchigiana Pesarese (Pesaro Urbino), on

  • 19-08-2021 23:00:03 (UTC)
  • 20-08-2021 01:00:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9620, 13.1430 at 11 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
Fano PU 16 60888 60888
Pesaro PU 19 94582 155470

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NE of Fano (60888 inhabitants)
19 Km E of Pesaro (94582 inhabitants)
47 Km E of Rimini (147750 inhabitants)
49 Km NW of Ancona (100861 inhabitants)
75 Km E of Cesena (96758 inhabitants)
91 Km SE of Ravenna (159116 inhabitants)
93 Km E of Forlì (117913 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 1.4 2021-08-19
23:00:03		 43.962 13.1432 11 2021-12-29
11:12:52		 Bollettino Sismico Italiano INGV 98133631
Reviewed
Rev100 		ML 1.4 2021-08-19
23:00:03		 43.9498 13.1382 10 2021-08-20
00:03:31		 Sala Sismica INGV-Roma 94390581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-19 23:00:03 ± 0.27
Latitude 43.9620 ± 0.0135
Longitude 13.1432 ± 0.0137
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 98133631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1555
Semi-minor axis of confidence ellipse (meter) 1001
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 15
Circular confidence region, given by single value of horizontal uncertainty (meter) 1560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.78691
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 98133631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-04 15:23:58

ML:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 23
Type of magnitude ML
Reference to an origin 94390581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-20 00:03:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.SCL3.EHZ.02 2021-08-19T23:01:59.15 3.0 undecidable manual Sg 14.35 0
IV.MILZ.HHZ. 2021-08-19T23:01:45.26 3.0 positive manual Pg 14.6 0
IV.GIZZ.HHZ. 2021-08-19T23:01:22.18 3.0 negative manual Pn -2.95 0
IV.FVI.HHZ. 2021-08-19T23:01:22.83 3.0 undecidable manual Sg 0.9 0
IV.SPS2.HHZ. 2021-08-19T23:01:21.75 3.0 negative manual Pn -0.15 0
IV.SALO.HHZ. 2021-08-19T23:01:15.86 3.0 undecidable manual Sn -1.05 0
IV.MNTV.EHZ. 2021-08-19T23:01:07.82 3.0 undecidable manual Sn 1.77 0
IV.ZCCA.HHZ. 2021-08-19T23:00:54.59 3.0 undecidable manual Sn 0.39 0
IV.CADC.EHZ. 2021-08-19T23:00:46.38 3.0 positive manual Pn -0.28 0
IV.CERT.HHZ. 2021-08-19T23:00:41.59 3.0 negative manual Pg 4.49 0
IV.SBPO.HNZ. 2021-08-19T23:00:35.47 3.0 undecidable manual Pn -1.72 0
IV.ZCCA.HHZ. 2021-08-19T23:00:35.74 3.0 undecidable manual Pg 3.39 0
IV.PIEI.HHZ. 2021-08-19T23:00:24.41 0.6 undecidable manual S 226 67.8765 50 0.46 47
IV.FRON.EHZ. 2021-08-19T23:00:22.16 0.6 undecidable manual S 214 59.5959 50 0.44 48
IV.ARVD.HHZ. 2021-08-19T23:00:20.18 0.6 undecidable manual S 198 53.9016 50 -0.04 51
IV.MPAG.EHZ. 2021-08-19T23:00:18.55 0.6 undecidable manual S 220 48.0186 50 -0.09 51
IV.TB01.DHZ.01 2021-08-19T23:00:18.02 0.3 undecidable manual P 222 85.8474 50 0.06 73
IV.ATVO.HHN. 2021-08-19T23:00:17.81 0.3 undecidable manual P 223 87.3459 50 -0.38 68
IV.CPGN.EHN. 2021-08-19T23:00:17.08 0.3 undecidable manual P 255 68.1762 50 1.84 35
IV.ATPI.EHE. 2021-08-19T23:00:17.40 0.3 undecidable manual P 227 82.1511 50 0 74
IV.TB03.DHZ.01 2021-08-19T23:00:17.72 0.3 undecidable manual P 224 85.5477 50 -0.2 71
IV.PARC.HHZ. 2021-08-19T23:00:17.21 0.3 undecidable manual P 245 80.364 50 0.1 73
IV.COR1.EHZ. 2021-08-19T23:00:16.90 0.6 undecidable manual S 197 38.3283 50 0.84 43
IV.ATPC.HHE. 2021-08-19T23:00:16.61 0.3 undecidable manual P 226 76.6677 50 0.06 74
IV.APEC.HNN. 2021-08-19T23:00:16.04 0.3 undecidable manual P 233 73.1712 50 0.02 75
IV.ATBU.EHZ. 2021-08-19T23:00:15.80 0.1 undecidable manual P 222 71.9724 50 -0.03 100
IV.EL6.EHZ. 2021-08-19T23:00:15.62 0.3 undecidable manual P 183 70.2741 50 0.05 75
IV.ATSC.EHE. 2021-08-19T23:00:15.27 0.3 undecidable manual P 212 69.9744 50 -0.25 72
IV.SSFR.HHZ. 2021-08-19T23:00:14.40 0.3 undecidable manual P 207 65.0904 50 -0.37 71
IV.PIEI.HHZ. 2021-08-19T23:00:14.81 0.1 undecidable manual P 226 67.8765 50 -0.39 94
IV.SENI.HNZ. 2021-08-19T23:00:14.11 0.6 undecidable manual S 166 29.3484 50 0.45 50
IV.CING.HHZ. 2021-08-19T23:00:14.84 0.3 undecidable manual P 176 65.1903 50 0.06 76
IV.AOI.HHZ. 2021-08-19T23:00:14.80 0.3 undecidable manual P 141 58.5969 50 1.02 56
IV.PE3.EHE. 2021-08-19T23:00:14.06 0.3 undecidable manual P 241 59.5959 50 0.15 75
IV.FRON.EHZ. 2021-08-19T23:00:13.61 0.1 undecidable manual P 214 59.5959 50 -0.3 97
IV.NARO.HHZ. 2021-08-19T23:00:13.66 0.1 undecidable manual P 229 59.5959 50 -0.26 98
IV.CRTC.HHZ. 2021-08-19T23:00:13.44 0.6 undecidable manual S 224 29.8479 50 -0.36 50
IV.PESA.HHZ. 2021-08-19T23:00:12.94 0.6 undecidable manual S 265 24.2535 50 0.63 46
IV.ARVD.HHZ. 2021-08-19T23:00:12.70 0.3 undecidable manual P 198 53.9016 50 -0.34 73
IV.MPAG.EHZ. 2021-08-19T23:00:11.73 0.3 undecidable manual P 220 48.0186 50 -0.41 72
IV.FANO.HNZ. 2021-08-19T23:00:10.10 0.6 undecidable manual S 217 16.4724 123 0.05 52
IV.COR1.EHZ. 2021-08-19T23:00:10.99 0.3 undecidable manual P 197 38.3283 50 0.34 75
IV.CRTC.HHZ. 2021-08-19T23:00:09.09 0.3 undecidable manual P 224 29.8479 50 -0.25 77
IV.PESA.HHZ. 2021-08-19T23:00:08.71 0.3 undecidable manual P 265 24.2535 50 0.23 78
IV.SENI.HNZ. 2021-08-19T23:00:08.74 0.3 undecidable manual P 166 29.3484 50 -0.52 73
IV.FANO.HNZ. 2021-08-19T23:00:07.07 0.3 undecidable manual P 217 16.4724 123 -0.11 82
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PESA.HHE. ML:2.2 0.0010105 0.08 AML other m 2021-08-19T23:00:13.62
IV.PESA.HHN. ML:2.2 0.0008560694 0.064 AML other m 2021-08-19T23:00:13.95
IV.CRTC.HHE. ML:1.8 0.00026758405000000004 1.488 AML other m 2021-08-19T23:00:16.20
IV.CRTC.HNE. ML:3.0 0.004601607 0.6912 AML other m 2021-08-19T23:00:16.65
IV.COR1.EHN. ML:1.6 0.00013127018499999997 0.256 AML other m 2021-08-19T23:00:19.13
IV.COR1.EHE. ML:1.4 0.00007961291500000001 0.4224 AML other m 2021-08-19T23:00:19.68
IV.MPAG.EHN. ML:1.2 0.00004655 0.44 AML other m 2021-08-19T23:00:21.32
IV.MPAG.EHE. ML:1.1 0.0000346 0.22 AML other m 2021-08-19T23:00:21.60
IV.ARVD.HHE. ML:1.0 0.00002715 1.54 AML other m 2021-08-19T23:00:22.84
IV.ARVD.HHN. ML:1.0 0.00002558402 0.1792 AML other m 2021-08-19T23:00:22.09
IV.FRON.EHN. ML:1.2 0.000036785709999999996 0.3584 AML other m 2021-08-19T23:00:24.23
IV.NARO.HHN. ML:1.4 0.00005624999999999999 0.3 AML other m 2021-08-19T23:00:24.32
IV.NARO.HHE. ML:1.6 0.00008415 0.24 AML other m 2021-08-19T23:00:24.46
IV.CING.HHE. ML:1.1 0.000023800000000000003 0.3 AML other m 2021-08-19T23:00:24.69
IV.CING.HHN. ML:0.9 0.00001517107 0.3584 AML other m 2021-08-19T23:00:24.81
IV.SSFR.HHN. ML:1.6 0.00006525 0.24 AML other m 2021-08-19T23:00:25.57
IV.PIEI.HHE. ML:1.7 0.00009295000000000001 0.3 AML other m 2021-08-19T23:00:26.84
IV.PIEI.HHN. ML:1.4 0.000045086025000000003 1.744 AML other m 2021-08-19T23:00:26.05
IV.EL6.EHN. ML:1.4 0.000047300345 0.3328 AML other m 2021-08-19T23:00:27.26
IV.SSFR.HHE. ML:1.7 0.000095 0.2 AML other m 2021-08-19T23:00:27.34
IV.FRON.EHE. ML:0.9 0.000016851255 0.2816 AML other m 2021-08-19T23:00:28.38
IV.EL6.EHE. ML:1.4 0.000039668604999999995 1.5392 AML other m 2021-08-19T23:00:30.91
IV.PARC.HHN. ML:1.4 0.00003734999999999999 0.18 AML other m 2021-08-19T23:00:30.36
IV.PARC.HHE. ML:1.2 0.00002145 0.38 AML other m 2021-08-19T23:00:31.50
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