Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 02-03-2021 and time 23:53:31 (UTC) in region 3 km SE Acqualagna (PU)

A magnitude ML 1.2 earthquake occured in region: 3 km SE Acqualagna (PU), on

  • 02-03-2021 23:53:31 (UTC)
  • 03-03-2021 00:53:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5900, 12.6860 at 15 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
Acqualagna PU 3 4393 4393
Cagli PU 6 8731 13124
Frontone PU 9 1300 14424
Fermignano PU 10 8596 23020
Pergola PU 13 6333 29353
Serra Sant'Abbondio PU 13 1027 30380
Cantiano PU 14 2245 32625
Piobbico PU 14 2029 34654
Fossombrone PU 15 9575 44229
Urbino PU 16 15019 59248
Urbania PU 16 7099 66347
Fratte Rosa PU 18 966 67313
Isola del Piano PU 18 594 67907
Sant'Ippolito PU 18 1563 69470
Peglio PU 19 696 70166

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km SW of Fano (60888 inhabitants)
40 Km SW of Pesaro (94582 inhabitants)
53 Km S of Rimini (147750 inhabitants)
59 Km NE of Perugia (166134 inhabitants)
66 Km E of Arezzo (99543 inhabitants)
67 Km W of Ancona (100861 inhabitants)
70 Km N of Foligno (57155 inhabitants)
71 Km SE of Cesena (96758 inhabitants)
87 Km SE of Forlì (117913 inhabitants)
100 Km SE of Ravenna (159116 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 1.2 2021-03-02
23:53:31		 43.5897 12.6862 15 2021-07-12
16:55:14		 Bollettino Sismico Italiano INGV 90804891
Reviewed
Rev100 		ML 1.2 2021-03-02
23:53:31		 43.5808 12.6835 15 2021-03-02
23:58:46		 Sala Sismica INGV-Roma 87640341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-02 23:53:31 ± 0.15
Latitude 43.5897 ± 0.0081
Longitude 12.6862 ± 0.0099
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90804891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1052
Semi-minor axis of confidence ellipse (meter) 165
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 1050.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
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) 0.06655
Epicentral distance of station farthest from the epicenter (degree) 0.62503
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 90804891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-05 00:18:43

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 87640341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-02 23:58:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2021-03-02T23:53:54.11 0.6 undecidable manual S 152 69.375 94 1.36 27
IV.CPGN.EHZ. 2021-03-02T23:53:46.33 0.6 undecidable manual S 309 37.5291 98 2.03 19
IV.EL6.EHZ. 2021-03-02T23:53:46.92 0.6 undecidable manual S 131 44.2224 97 0.87 36
IV.BADI.EHZ. 2021-03-02T23:53:44.44 0.3 undecidable manual S 256 36.6411 99 0.39 66
IV.FDMO.HHZ. 2021-03-02T23:53:43.67 0.3 undecidable manual P 152 69.375 94 -0.2 65
IV.FOSV.EHZ. 2021-03-02T23:53:43.30 0.6 undecidable manual S 169 33.2445 100 0.13 46
IV.PARC.HHZ. 2021-03-02T23:53:43.89 0.3 undecidable manual S 280 36.5412 99 -0.14 69
IV.ATFO.HHZ. 2021-03-02T23:53:41.58 0.6 undecidable manual S 200 26.3514 105 0.2 46
IV.ARVD.HHZ. 2021-03-02T23:53:40.51 0.6 undecidable manual S 116 22.9548 108 0.03 49
IV.PE3.EHZ. 2021-03-02T23:53:40.04 0.6 undecidable manual S 308 19.2696 114 0.47 45
IV.EL6.EHZ. 2021-03-02T23:53:39.73 0.3 undecidable manual P 131 44.2224 97 -0.28 66
IV.SSFR.HHZ. 2021-03-02T23:53:39.48 0.6 undecidable manual S 156 18.6702 115 0.05 49
IV.CPGN.EHZ. 2021-03-02T23:53:39.43 0.3 undecidable manual P 309 37.5291 98 0.44 66
IV.PARC.HHZ. 2021-03-02T23:53:38.45 0.1 undecidable manual P 280 36.5412 99 -0.38 88
IV.PIEI.HHZ. 2021-03-02T23:53:38.13 0.6 undecidable manual S 244 13.5753 127 -0.12 49
IV.BADI.EHZ. 2021-03-02T23:53:38.93 0.3 undecidable manual P 256 36.6411 99 0.08 70
IV.FOSV.EHZ. 2021-03-02T23:53:37.98 0.3 undecidable manual P 169 33.2445 100 -0.36 67
IV.MPAG.HNZ. 2021-03-02T23:53:37.36 0.3 undecidable manual S 53 7.3815 148 0.24 73
IV.FRON.EHZ. 2021-03-02T23:53:37.68 0.6 undecidable manual S 158 8.5803 143 0.37 46
IV.NARO.HHZ. 2021-03-02T23:53:37.25 0.3 undecidable manual S 286 8.7801 142 -0.09 73
IV.ATFO.HHZ. 2021-03-02T23:53:37.10 0.1 positive manual P 200 26.3514 105 -0.2 94
IV.SSFR.HHZ. 2021-03-02T23:53:36.02 0.1 positive manual P 156 18.6702 115 -0.16 95
IV.PE3.EHZ. 2021-03-02T23:53:36.14 0.1 undecidable manual P 308 19.2696 114 -0.12 95
IV.ARVD.HHZ. 2021-03-02T23:53:36.58 0.1 undecidable manual P 116 22.9548 108 -0.21 93
IV.PIEI.HHZ. 2021-03-02T23:53:35.23 0.1 undecidable manual P 244 13.5753 127 -0.27 94
IV.MPAG.HNZ. 2021-03-02T23:53:34.80 0.1 undecidable manual P 53 7.3815 148 -0.05 98
IV.FRON.EHZ. 2021-03-02T23:53:34.96 0.1 undecidable manual P 158 8.5803 143 0 100
IV.NARO.HHZ. 2021-03-02T23:53:34.79 0.1 undecidable manual P 286 8.7801 142 -0.19 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHE. ML:1.1 0.000118 1.44 AML other m 2021-03-02T23:53:37.82
IV.FRON.EHN. ML:1.5 0.000303 1.7 AML other m 2021-03-02T23:53:38.90
IV.PIEI.HHN. ML:0.9 0.00006570000000000001 0.08 AML other m 2021-03-02T23:53:38.62
IV.PIEI.HHE. ML:1.1 0.00010175 0.42 AML other m 2021-03-02T23:53:38.64
IV.SSFR.HHE. ML:1.7 0.000337 0.82 AML other m 2021-03-02T23:53:39.66
IV.SSFR.HNN. ML:1.8 0.0004525 1.76 AML other m 2021-03-02T23:53:39.01
IV.SSFR.HNE. ML:1.7 0.000358 0.76 AML other m 2021-03-02T23:53:39.55
IV.SSFR.HHN. ML:1.6 0.000277 0.12 AML other m 2021-03-02T23:53:40.07
IV.ARVD.HHE. ML:1.1 0.00007489999999999999 1.64 AML other m 2021-03-02T23:53:40.89
IV.ARVD.HHN. ML:1.1 0.00008249999999999999 0.36 AML other m 2021-03-02T23:53:40.75
IV.ATFO.HHN. ML:1.0 0.00004339999999999999 0.32 AML other m 2021-03-02T23:53:41.93
IV.ATFO.HHE. ML:1.1 0.0000582 1 AML other m 2021-03-02T23:53:42.72
IV.FOSV.EHN. ML:0.9 0.00003245 0.14 AML other m 2021-03-02T23:53:43.42
IV.FOSV.EHE. ML:0.8 0.000026700000000000002 0.08 AML other m 2021-03-02T23:53:43.56
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