Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 15-08-2021 and time 09:23:02 (UTC) in region Costa Marchigiana Pesarese (Pesaro Urbino)

A magnitude ML 1.5 earthquake occured in region: Costa Marchigiana Pesarese (Pesaro Urbino), on

  • 15-08-2021 09:23:02 (UTC)
  • 15-08-2021 11:23:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9530, 13.1220 at 7 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 15 60888 60888
Pesaro PU 17 94582 155470

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NE of Fano (60888 inhabitants)
17 Km E of Pesaro (94582 inhabitants)
46 Km E of Rimini (147750 inhabitants)
49 Km NW of Ancona (100861 inhabitants)
73 Km E of Cesena (96758 inhabitants)
90 Km SE of Ravenna (159116 inhabitants)
91 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 1.5 2021-08-15
09:23:02		 43.9533 13.1217 7 2021-12-29
11:12:30		 Bollettino Sismico Italiano INGV 95504681
Reviewed
Rev100 		ML 1.6 2021-08-15
09:23:01		 43.9658 13.1873 6 2021-08-15
09:50:12		 Sala Sismica INGV-Roma 94189441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-15 09:23:02 ± 0.26
Latitude 43.9533 ± 0.0108
Longitude 13.1217 ± 0.0112
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95504681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1280
Semi-minor axis of confidence ellipse (meter) 860
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 204
Circular confidence region, given by single value of horizontal uncertainty (meter) 1280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 232
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.13220
Epicentral distance of station farthest from the epicenter (degree) 0.82108
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 95504681
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-27 15:09:25

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 94189441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-15 09:50:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATLO.HNE. 2021-08-15T09:23:30.45 0.6 undecidable manual S 219 91.1421 50 0.6 40
IV.ATVO.HHZ. 2021-08-15T09:23:29.20 0.6 undecidable manual S 222 85.4478 50 0.85 36
IV.PARC.HHE. 2021-08-15T09:23:26.80 0.6 undecidable manual S 245 78.366 50 0.35 44
IV.ATFO.HHZ. 2021-08-15T09:23:26.57 0.6 undecidable manual S 214 78.6657 50 0.05 46
IV.FRON.EHZ. 2021-08-15T09:23:22.12 0.6 undecidable manual S 213 57.7977 50 1.16 33
IV.PIEI.HNE. 2021-08-15T09:23:22.63 0.3 undecidable manual S 226 65.9895 50 -0.52 64
IV.AOI.HHE. 2021-08-15T09:23:22.08 0.6 undecidable manual S 139 58.9965 50 0.8 39
IV.NARO.HHZ. 2021-08-15T09:23:20.33 0.6 undecidable manual S 229 57.5979 50 -0.59 42
IV.ARVD.HHE. 2021-08-15T09:23:19.20 0.6 undecidable manual S 196 52.503 50 -0.35 46
IV.MPAG.EHZ. 2021-08-15T09:23:18.13 0.6 undecidable manual S 219 46.2204 50 0.27 47
IV.ATVO.HHZ. 2021-08-15T09:23:17.22 0.6 undecidable manual P 222 85.4478 50 -0.03 46
IV.ATLO.HNE. 2021-08-15T09:23:17.82 0.6 undecidable manual P 219 91.1421 50 -0.3 43
IV.PARC.HHE. 2021-08-15T09:23:16.26 0.3 undecidable manual P 245 78.366 50 0.11 69
IV.TB03.DHZ.01 2021-08-15T09:23:16.81 0.6 undecidable manual P 223 83.7495 50 -0.17 45
IV.ATPC.HNN. 2021-08-15T09:23:15.16 0.6 undecidable manual P 226 74.7696 50 -0.44 43
IV.ATFO.HHZ. 2021-08-15T09:23:15.53 0.3 undecidable manual P 214 78.6657 50 -0.67 59
IV.COR1.EHZ. 2021-08-15T09:23:14.40 0.6 undecidable manual S 195 36.9297 100 -0.73 42
IV.SSFR.HNE. 2021-08-15T09:23:13.94 0.3 undecidable manual P 206 63.492 50 0.08 71
IV.FRON.EHZ. 2021-08-15T09:23:13.16 0.6 undecidable manual P 213 57.7977 50 0.17 47
IV.PIEI.HNE. 2021-08-15T09:23:13.79 0.3 undecidable manual P 226 65.9895 50 -0.46 65
IV.AOI.HHE. 2021-08-15T09:23:13.37 0.6 undecidable manual P 139 58.9965 50 0.2 47
IV.ARVD.HHE. 2021-08-15T09:23:12.45 0.6 undecidable manual P 196 52.503 50 0.28 47
IV.NARO.HHZ. 2021-08-15T09:23:12.03 0.3 undecidable manual P 229 57.5979 50 -0.93 55
IV.SENI.HNN. 2021-08-15T09:23:12.95 0.6 undecidable manual S 162 28.9488 103 0.56 45
IV.PESA.HHN. 2021-08-15T09:23:11.10 0.6 undecidable manual S 267 22.5552 106 0.87 40
IV.CRTC.HNE. 2021-08-15T09:23:11.90 0.6 undecidable manual S 223 28.0497 103 -0.18 50
IV.MPAG.EHZ. 2021-08-15T09:23:11.64 0.6 undecidable manual P 219 46.2204 50 0.44 45
IV.COR1.EHZ. 2021-08-15T09:23:09.33 0.1 positive manual P 195 36.9297 100 -0.29 95
IV.FANO.HNE. 2021-08-15T09:23:08.10 0.6 undecidable manual S 214 14.6742 114 0.41 48
IV.SENI.HNN. 2021-08-15T09:23:07.82 0.6 undecidable manual P 162 28.9488 103 -0.22 49
IV.CRTC.HNE. 2021-08-15T09:23:07.71 0.6 undecidable manual P 223 28.0497 103 -0.15 50
IV.PESA.HHN. 2021-08-15T09:23:06.98 0.1 undecidable manual P 267 22.5552 106 0.19 100
IV.FANO.HNE. 2021-08-15T09:23:05.39 0.6 undecidable manual P 214 14.6742 114 0.06 52
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.COR1.EHN. ML:1.5 0.00012934205 0.256 AML other m 2021-08-15T09:23:16.45
IV.COR1.EHE. ML:1.3 0.00006949486 0.2432 AML other m 2021-08-15T09:23:16.69
IV.NARO.HHN. ML:1.6 0.0000876 0.32 AML other m 2021-08-15T09:23:22.74
IV.NARO.HHE. ML:1.7 0.00011499999999999999 0.24 AML other m 2021-08-15T09:23:22.74
IV.ATFO.HHN. ML:1.5 0.0000466 1.68 AML other m 2021-08-15T09:23:29.88
IV.ATFO.HHE. ML:1.6 0.00005374999999999999 0.28 AML other m 2021-08-15T09:23:29.18
IV.ATVO.HHN. ML:1.4 0.00003285 0.4 AML other m 2021-08-15T09:23:30.13
IV.ATVO.HHE. ML:1.3 0.00002605 0.3 AML other m 2021-08-15T09:23:30.18
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