Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 22-08-2021 and time 21:05:30 (UTC) in region Costa Marchigiana Pesarese (Pesaro Urbino)

A magnitude ML 1.6 earthquake occured in region: Costa Marchigiana Pesarese (Pesaro Urbino), on

  • 22-08-2021 21:05:30 (UTC)
  • 22-08-2021 23:05:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9730, 13.1270 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 17 60888 60888
Pesaro PU 18 94582 155470

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NE of Fano (60888 inhabitants)
18 Km E of Pesaro (94582 inhabitants)
46 Km E of Rimini (147750 inhabitants)
51 Km NW of Ancona (100861 inhabitants)
73 Km E of Cesena (96758 inhabitants)
89 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 1.6 2021-08-22
21:05:30		 43.9727 13.1267 11 2021-12-29
11:12:30		 Bollettino Sismico Italiano INGV 95510641
Reviewed
Rev100 		ML 1.5 2021-08-22
21:05:30		 43.9678 13.1142 19 2021-08-22
21:13:31		 Sala Sismica INGV-Roma 94514371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-22 21:05:30 ± 0.36
Latitude 43.9727 ± 0.0162
Longitude 13.1267 ± 0.0162
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 95510641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1881
Semi-minor axis of confidence ellipse (meter) 1224
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 17
Circular confidence region, given by single value of horizontal uncertainty (meter) 1880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 263
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 17
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) 0.61064
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 18
Type of magnitude ML
Reference to an origin 95510641
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-16 15:45:17

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 94514371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-22 21:13:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRAC.EHZ. 2021-08-22T21:07:23.72 3.0 undecidable manual Sn -4.76 0
GU.RORO.HHZ. 2021-08-22T21:07:17.54 3.0 undecidable manual Sn 6.01 0
IV.HPAC.HHZ. 2021-08-22T21:07:15.42 3.0 undecidable manual Pn -3.51 0
IX.SCL3.EHZ.02 2021-08-22T21:07:09.36 3.0 undecidable manual Sn -3.52 0
IV.IST3.HHZ. 2021-08-22T21:07:05.89 3.0 negative manual Pg 14.26 0
SI.KOSI.HHZ. 2021-08-22T21:06:59.70 3.0 undecidable manual Sg 7.2 0
IV.CPIS.HHZ. 2021-08-22T21:06:59.02 3.0 undecidable manual Sn -1.4 0
OT.CGL1.HHZ. 2021-08-22T21:06:55.29 3.0 undecidable manual Pg 13.44 0
IV.ZEN8.EHZ. 2021-08-22T21:06:41.65 3.0 undecidable manual Sn -0.49 0
CR.STON.BHZ. 2021-08-22T21:06:31.80 3.0 negative manual Pn 5.03 0
MN.TRI.HHZ. 2021-08-22T21:06:04.67 3.0 positive manual Pg 0.45 0
IT.MTCL.HGZ. 2021-08-22T21:05:59.79 3.0 undecidable manual S -4.07 0
IV.VENL.EHZ. 2021-08-22T21:05:51.75 3.0 undecidable manual P 0
IV.PIEI.HHZ. 2021-08-22T21:05:51.62 0.3 undecidable manual S 225 67.7766 50 0.26 70
IV.NARO.HHZ. 2021-08-22T21:05:49.33 0.6 undecidable manual S 228 59.3961 50 0.23 48
IV.MPAG.EHZ. 2021-08-22T21:05:45.69 0.3 undecidable manual S 218 48.1185 50 -0.41 68
IV.COR1.EHZ. 2021-08-22T21:05:44.64 0.6 undecidable manual S 195 39.1275 50 0.94 40
IV.SENI.HNZ. 2021-08-22T21:05:42.03 0.6 undecidable manual S 164 30.8469 50 0.54 48
IV.PIEI.HHZ. 2021-08-22T21:05:42.46 0.3 undecidable manual P 225 67.7766 50 -0.17 70
IV.NARO.HHZ. 2021-08-22T21:05:41.08 0.3 undecidable manual P 228 59.3961 50 -0.25 70
IV.PE3.EHE. 2021-08-22T21:05:41.74 0.6 undecidable manual P 239 58.9965 50 0.46 45
IV.CRTC.HHZ. 2021-08-22T21:05:40.84 0.3 undecidable manual S 221 29.8479 50 -0.38 71
IV.PESA.HHZ. 2021-08-22T21:05:40.00 0.3 undecidable manual S 261 23.1546 50 0.57 65
IV.MPAG.EHZ. 2021-08-22T21:05:39.12 0.3 undecidable manual P 218 48.1185 50 -0.48 68
IV.COR1.EHZ. 2021-08-22T21:05:38.36 0.1 undecidable manual P 195 39.1275 50 0.14 100
IV.FANO.HNE. 2021-08-22T21:05:37.42 0.6 undecidable manual S 211 16.7721 123 -0.2 51
IV.SENI.HNZ. 2021-08-22T21:05:36.92 0.6 undecidable manual P 164 30.8469 50 -0.02 51
IV.CRTC.HHZ. 2021-08-22T21:05:36.45 0.3 undecidable manual P 221 29.8479 50 -0.33 72
IV.PESA.HHZ. 2021-08-22T21:05:36.06 0.3 undecidable manual P 261 23.1546 50 0.31 72
IV.FANO.HNE. 2021-08-22T21:05:34.46 0.3 undecidable manual P 211 16.7721 123 -0.24 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRTC.HNE. ML:3.1 0.0065062125000000005 0.576 AML other m 2021-08-22T21:05:38.27
IV.CRTC.HNN. ML:3.0 0.005009843 1.0368 AML other m 2021-08-22T21:05:38.66
IV.PESA.HHN. ML:1.8 0.00044238379999999997 0.0512 AML other m 2021-08-22T21:05:40.92
IV.PESA.HHE. ML:2.0 0.0006723830499999999 0.0512 AML other m 2021-08-22T21:05:40.92
IV.CRTC.HHN. ML:1.5 0.0001452794 0.2432 AML other m 2021-08-22T21:05:42.39
IV.CRTC.HHE. ML:1.6 0.0001969535 0.4096 AML other m 2021-08-22T21:05:44.38
IV.COR1.EHE. ML:1.2 0.000055933299999999995 0.384 AML other m 2021-08-22T21:05:44.93
IV.MPAG.EHN. ML:1.3 0.0000515 0.24 AML other m 2021-08-22T21:05:48.32
IV.MPAG.EHE. ML:1.1 0.000035042205 0.1792 AML other m 2021-08-22T21:05:48.70
IV.MPAG.HNE. ML:1.6 0.00010411561 0.4352 AML other m 2021-08-22T21:05:49.97
IV.NARO.HHN. ML:1.4 0.00005555 0.24 AML other m 2021-08-22T21:05:51.77
IV.NARO.HHE. ML:1.6 0.00007919999999999999 0.26 AML other m 2021-08-22T21:05:51.77
IV.PIEI.HHE. ML:1.7 0.0000846 1.68 AML other m 2021-08-22T21:05:53.99
IV.PIEI.HHN. ML:1.5 0.0000510845 0.2944 AML other m 2021-08-22T21:05:54.36
IV.COR1.HNN. ML:2.4 0.0008120102 0.9216 AML other m 2021-08-22T21:05:55.35
IV.COR1.EHN. ML:1.5 0.00011788875000000002 0.96 AML other m 2021-08-22T21:05:56.68
IV.COR1.HNE. ML:2.7 0.001685181 1.3312 AML other m 2021-08-22T21:05:56.01
IV.MPAG.HNN. ML:1.6 0.00009947255 0.576 AML other m 2021-08-22T21:06:00.15
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