Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 08-08-2021 and time 18:37:06 (Italy) in region Costa Marchigiana Pesarese (Pesaro Urbino)

A magnitude ML 1.8 earthquake occured in region: Costa Marchigiana Pesarese (Pesaro Urbino), on

  • 08-08-2021 16:37:06 (UTC)
  • 08-08-2021 18:37:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.0020, 13.1640 at 10 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
21 Km NE of Fano (60888 inhabitants)
22 Km E of Pesaro (94582 inhabitants)
48 Km E of Rimini (147750 inhabitants)
51 Km NW of Ancona (100861 inhabitants)
75 Km E of Cesena (96758 inhabitants)
90 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 1.8 2021-08-08
16:37:06		 44.0025 13.1642 10 2021-12-29
11:12:53		 Bollettino Sismico Italiano INGV 98344651
Reviewed
Rev100 		ML 2.0 2021-08-08
16:37:06		 43.993 13.1472 10 2021-08-08
16:51:16		 Sala Sismica INGV-Roma 93850321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-08 16:37:06 ± 0.27
Latitude 44.0025 ± 0.0117
Longitude 13.1642 ± 0.0138
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 98344651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1320
Semi-minor axis of confidence ellipse (meter) 1015
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) 1320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 242
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.89932
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 98344651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-17 16:30:50

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 7
Type of magnitude ML
Reference to an origin 93850321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-08 16:51:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IX.RSF3.HHZ.02 2021-08-08T16:37:51.87 3.0 undecidable manual Pn -0.7 0
IV.SGRT.HHZ. 2021-08-08T16:37:50.30 3.0 undecidable manual Pg 2.24 0
OT.OT05.EHZ. 2021-08-08T16:37:49.54 3.0 positive manual Pg 1.67 0
IV.PTRJ.HNZ. 2021-08-08T16:37:46.67 3.0 undecidable manual Pg 2.16 0
IV.VCEL.EHZ. 2021-08-08T16:37:38.48 3.0 undecidable manual S -6.28 0
IV.ATBU.EHZ. 2021-08-08T16:37:30.86 0.6 undecidable manual S 220 76.4679 50 1.62 26
IV.PIEI.HHZ. 2021-08-08T16:37:28.40 0.3 undecidable manual S 224 72.2721 50 0.29 72
IV.CING.HNZ. 2021-08-08T16:37:27.84 0.3 undecidable manual S 178 69.5748 50 0.44 70
IV.NARO.HHZ. 2021-08-08T16:37:25.84 0.6 undecidable manual S 227 63.7917 50 -0.01 52
IV.ARVD.HHZ. 2021-08-08T16:37:23.91 0.3 undecidable manual S 198 58.6968 50 -0.59 68
IV.MML1.HNZ. 2021-08-08T16:37:23.64 0.6 undecidable manual P 189 99.8223 50 0.63 42
IV.MPAG.EHE. 2021-08-08T16:37:22.52 0.3 undecidable manual S 218 52.6029 50 -0.33 74
IV.ATPI.EHE. 2021-08-08T16:37:21.05 0.3 undecidable manual P 225 86.4468 50 0.09 73
IV.COR1.EHZ. 2021-08-08T16:37:20.87 0.3 undecidable manual S 198 43.1235 50 0.53 72
IV.ATPC.HHE. 2021-08-08T16:37:20.20 0.3 undecidable manual P 225 80.9523 50 0.08 74
IV.ATBU.EHZ. 2021-08-08T16:37:19.32 0.3 undecidable manual P 220 76.4679 50 -0.1 75
IV.APEC.HNN. 2021-08-08T16:37:19.51 0.3 undecidable manual P 231 77.367 50 -0.04 76
IV.PIEI.HHZ. 2021-08-08T16:37:18.43 0.1 undecidable manual P 224 72.2721 50 -0.34 95
IV.SENI.HNN. 2021-08-08T16:37:18.19 0.6 undecidable manual S 170 33.4443 50 0.44 50
IV.CING.HNZ. 2021-08-08T16:37:18.63 0.6 undecidable manual P 178 69.5748 50 0.27 49
IV.CRTC.HHZ. 2021-08-08T16:37:17.54 0.3 undecidable manual S 221 34.3434 50 -0.45 75
IV.NARO.HHZ. 2021-08-08T16:37:17.27 0.1 undecidable manual P 227 63.7917 50 -0.19 100
IV.PE3.EHN. 2021-08-08T16:37:17.60 0.3 undecidable manual P 238 63.2922 50 0.21 75
IV.PESA.HHE. 2021-08-08T16:37:16.13 0.3 undecidable manual S 255 26.751 109 0.28 79
IV.ARVD.HHZ. 2021-08-08T16:37:16.27 0.3 undecidable manual P 198 58.6968 50 -0.41 72
IV.AOI.HHE. 2021-08-08T16:37:16.81 1.0 undecidable manual P 145 61.1943 50 -0.26 25
IV.RSM2.HHE. 2021-08-08T16:37:16.91 1.0 undecidable manual P 263 57.7977 50 0.36 24
IV.MPAG.EHE. 2021-08-08T16:37:15.21 0.3 undecidable manual P 218 52.6029 50 -0.52 71
IV.COR1.EHZ. 2021-08-08T16:37:14.36 0.3 undecidable manual P 198 43.1235 50 0.08 80
IV.FANO.HNZ. 2021-08-08T16:37:13.68 0.3 undecidable manual S 213 21.1677 114 -0.36 78
IV.SENI.HNN. 2021-08-08T16:37:12.67 0.6 undecidable manual P 170 33.4443 50 -0.11 54
IV.PESA.HHE. 2021-08-08T16:37:12.10 0.3 undecidable manual P 255 26.751 109 0.41 77
IV.CRTC.HHZ. 2021-08-08T16:37:12.55 0.3 undecidable manual P 221 34.3434 50 -0.37 76
IV.FANO.HNZ. 2021-08-08T16:37:10.71 0.3 undecidable manual P 213 21.1677 114 0.07 83
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.COR1.EHN. ML:1.8 0.0002039323 0.1792 AML other m 2021-08-08T16:37:23.07
IV.COR1.EHE. ML:1.7 0.00014810115 0.2816 AML other m 2021-08-08T16:37:23.19
IV.ARVD.HHE. ML:1.3 0.00004560133500000001 0.2048 AML other m 2021-08-08T16:37:24.68
IV.ARVD.HHN. ML:1.4 0.0000552 1.8 AML other m 2021-08-08T16:37:24.90
IV.NARO.HHN. ML:1.7 0.00010705 1.76 AML other m 2021-08-08T16:37:27.07
IV.NARO.HHE. ML:2.0 0.00016849999999999998 0.32 AML other m 2021-08-08T16:37:28.08
IV.PIEI.HHE. ML:2.2 0.00023099999999999998 0.34 AML other m 2021-08-08T16:37:30.47
IV.PIEI.HHN. ML:1.9 0.00011554999999999999 0.34 AML other m 2021-08-08T16:37:30.69
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