Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 02-03-2021 and time 09:33:05 (UTC) in region 1 km S Serra San Quirico (AN)

A magnitude ML 1.4 earthquake occured in region: 1 km S Serra San Quirico (AN), on

  • 02-03-2021 09:33:05 (UTC)
  • 02-03-2021 10:33:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.44, 13.01 at 2 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Serra San Quirico AN 1 2850 2850
Mergo AN 4 1037 3887
Genga AN 6 1797 5684
Rosora AN 7 1985 7669
Castelplanio AN 8 3540 11209
Cupramontana AN 8 4756 15965
Poggio San Vicino MC 9 246 16211
Arcevia AN 9 4612 20823
Poggio San Marcello AN 10 693 21516
Maiolati Spontini AN 10 6248 27764
Montecarotto AN 11 1987 29751
Apiro MC 11 2280 32031
Monte Roberto AN 11 3061 35092
Serra de' Conti AN 12 3746 38838
Castelbellino AN 12 4947 43785
Sassoferrato AN 12 7285 51070
Cerreto d'Esi AN 13 3817 54887
San Paolo di Jesi AN 13 933 55820
Staffolo AN 14 2253 58073
Fabriano AN 14 31480 89553
Barbara AN 16 1368 90921
Cingoli MC 18 10352 101273
Ostra Vetere AN 19 3311 104584
Castelleone di Suasa AN 19 1676 106260
San Lorenzo in Campo PU 19 3414 109674
Pergola PU 20 6333 116007

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km S of Fano (60888 inhabitants)
46 Km W of Ancona (100861 inhabitants)
53 Km S of Pesaro (94582 inhabitants)
59 Km NE of Foligno (57155 inhabitants)
63 Km NE of Perugia (166134 inhabitants)
78 Km SE of Rimini (147750 inhabitants)
91 Km E of Arezzo (99543 inhabitants)
99 Km SE of Cesena (96758 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.4 2021-03-02
09:33:05		 43.44 13.01 2 2021-03-02
09:41:54		 Sala Sismica INGV-Roma 87622841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-02 09:33:05 ± 0.15
Latitude 43.44 ± 0.01
Longitude 13.01 ± 0.01
Depth (km) 2 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87622841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 865
Semi-minor axis of confidence ellipse (meter) 187
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 870
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 190
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37412
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 87622841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-02 09:41:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARRO.EHZ. 2021-03-02T09:33:27.80 3.0 undecidable manual S -1.06 0
IV.NRCA.HHZ. 2021-03-02T09:33:25.25 3.0 undecidable manual S 0.62 0
IV.CSP1.EHZ. 2021-03-02T09:33:20.87 0.3 undecidable manual S 158 0.3741 93 0.56 63
IV.MPAG.HNN. 2021-03-02T09:33:16.52 0.3 undecidable manual S 316 0.2644 94 0.42 67
IV.FRON.EHZ. 2021-03-02T09:33:14.60 0.3 undecidable manual S 291 0.223 95 0.1 72
IV.CSP1.EHZ. 2021-03-02T09:33:13.61 1.0 undecidable manual P 158 0.3741 93 -0.61 20
IV.SNTG.HHZ. 2021-03-02T09:33:13.31 0.3 undecidable manual S 196 0.1907 95 0.02 73
IV.NARO.HHZ. 2021-03-02T09:33:13.28 1.0 positive manual P 299 0.357 93 -0.57 21
IV.SSFR.HHZ. 2021-03-02T09:33:12.47 0.3 undecidable manual S 269 0.1673 96 0.09 73
IV.PIEI.HHZ. 2021-03-02T09:33:11.20 3.0 negative manual P 0.4 0
IV.MPAG.HNN. 2021-03-02T09:33:11.57 0.3 undecidable manual P 316 0.2644 94 -0.22 70
IV.FRON.EHZ. 2021-03-02T09:33:10.70 0.6 undecidable manual P 291 0.223 95 -0.17 47
IV.ARVD.HHN. 2021-03-02T09:33:09.20 0.1 undecidable manual S 319 0.0791 103 0.2 97
IV.SSFR.HHZ. 2021-03-02T09:33:09.38 0.6 positive manual P 269 0.1673 96 -0.26 47
IV.SNTG.HHZ. 2021-03-02T09:33:09.91 0.3 negative manual P 196 0.1907 95 -0.25 70
IV.EL6.EHN. 2021-03-02T09:33:08.77 0.1 undecidable manual P 149 0.1268 98 0.02 99
IV.ARVD.HHN. 2021-03-02T09:33:07.56 0.1 undecidable manual P 319 0.0791 103 -0.13 98
IV.MMUR.HNE. 2021-03-02T09:33:06.28 0.1 undecidable manual P 285 0.0117 147 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHN. ML:1.3 0.00018 1.58 AML other m 2021-03-02T09:33:14.99
IV.SSFR.HNN. ML:1.4 0.0002625 1.68 AML other m 2021-03-02T09:33:15.87
IV.FRON.EHN. ML:1.1 8.86E-5 0.44 AML other m 2021-03-02T09:33:16.41
IV.EL6.EHN. ML:1.3 0.000259 0.98 AML other m 2021-03-02T09:33:16.17
IV.EL6.EHE. ML:1.2 0.000205 0.78 AML other m 2021-03-02T09:33:16.70
IV.SNTG.HHE. ML:1 7.1E-5 1.08 AML other m 2021-03-02T09:33:17.40
IV.SSFR.HNE. ML:1.5 0.0002895 0.82 AML other m 2021-03-02T09:33:19.30
IV.SSFR.HHE. ML:1.4 0.000223 0.84 AML other m 2021-03-02T09:33:19.30
IV.FRON.EHE. ML:1.1 8.48E-5 0.44 AML other m 2021-03-02T09:33:20.44
IV.SNTG.HHN. ML:1.4 0.000174 0.96 AML other m 2021-03-02T09:33:22.10
IV.CSP1.EHN. ML:1.6 0.0001339 0.5 AML other m 2021-03-02T09:33:27.53
IV.CSP1.EHE. ML:1.7 0.0001585 1.22 AML other m 2021-03-02T09:33:27.78
IV.NARO.HHE. ML:1 3.985E-5 0.44 AML other m 2021-03-02T09:33:28.08
IV.NARO.HHN. ML:1.2 6.535E-5 0.46 AML other m 2021-03-02T09:33:31.53
IV.NRCA.HHE. ML:1.8 0.00011625 0.08 AML other m 2021-03-02T09:33:33.22
IV.NRCA.HHN. ML:1.6 7.58E-5 0.44 AML other m 2021-03-02T09:33:41.72
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download