Earthquake with magnitude of ML 1.2 on date 02-03-2021 and time 23:53:31 (UTC) in region 4 km S Acqualagna (PU)

A magnitude ML 1.2 earthquake occured in region: 4 km S 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) 43.58, 12.68 at 15 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.

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 4 4393 4393
Cagli PU 5 8731 13124
Frontone PU 9 1300 14424
Fermignano PU 11 8596 23020
Serra Sant'Abbondio PU 12 1027 24047
Pergola PU 13 6333 30380
Cantiano PU 13 2245 32625
Piobbico PU 14 2029 34654
Fossombrone PU 16 9575 44229
Urbania PU 16 7099 51328
Urbino PU 17 15019 66347
Fratte Rosa PU 19 966 67313
Sant'Ippolito PU 19 1563 68876
Isola del Piano PU 19 594 69470
Scheggia e Pascelupo PG 20 1393 70863
Peglio PU 20 696 71559

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SW of Fano (60888 inhabitants)
41 Km SW of Pesaro (94582 inhabitants)
54 Km S of Rimini (147750 inhabitants)
58 Km NE of Perugia (166134 inhabitants)
66 Km E of Arezzo (99543 inhabitants)
68 Km W of Ancona (100861 inhabitants)
69 Km N of Foligno (57155 inhabitants)
71 Km SE of Cesena (96758 inhabitants)
88 Km SE of Forlì (117913 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 1.2 2021-03-02
23:53:31
43.58 12.68 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 ± 0.14
Latitude 43.58 ± 0.01
Longitude 12.68 ± 0.01
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87640341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1016
Semi-minor axis of confidence ellipse (meter) 342
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 38
Circular confidence region, given by single value of horizontal uncertainty (meter) 1020
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.3939
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

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 Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2021-03-02T23:53:53.85 3.0 undecidable manual S -0.16 0
IV.EL6.EHZ. 2021-03-02T23:53:46.92 0.6 undecidable manual S 130 0.3939 97 0.88 36
IV.CPGN.EHZ. 2021-03-02T23:53:45.20 0.3 undecidable manual S 310 0.3426 98 0.68 64
IV.BADI.EHZ. 2021-03-02T23:53:44.41 0.3 undecidable manual S 258 0.3256 99 0.36 69
IV.PARC.HHZ. 2021-03-02T23:53:43.89 0.3 undecidable manual S 282 0.3292 99 -0.24 70
IV.FDMO.HHZ. 2021-03-02T23:53:43.78 3.0 negative manual P -0.22 0
IV.ATFO.HHZ. 2021-03-02T23:53:41.58 0.6 undecidable manual S 201 0.2293 105 0.35 47
IV.ARVD.HHZ. 2021-03-02T23:53:40.51 0.6 undecidable manual S 114 0.2041 108 -0.03 50
IV.PE3.EHZ. 2021-03-02T23:53:40.04 0.6 undecidable manual S 310 0.1772 113 0.25 49
IV.CPGN.EHZ. 2021-03-02T23:53:39.43 1.0 undecidable manual P 310 0.3426 98 0.26 24
IV.EL6.EHZ. 2021-03-02T23:53:39.92 1.0 positive manual P 130 0.3939 97 -0.12 24
IV.SSFR.HHZ. 2021-03-02T23:53:39.48 0.6 undecidable manual S 154 0.161 116 0.13 49
IV.PIEI.HHZ. 2021-03-02T23:53:38.13 0.6 undecidable manual S 247 0.1169 128 -0.09 50
IV.PARC.HHZ. 2021-03-02T23:53:38.48 0.3 positive manual P 282 0.3292 99 -0.46 67
IV.BADI.EHZ. 2021-03-02T23:53:38.97 1.0 negative manual P 258 0.3256 99 0.08 24
IV.FOSV.EHZ. 2021-03-02T23:53:37.99 3.0 positive manual P -0.12 0
IV.FRON.EHZ. 2021-03-02T23:53:37.57 0.6 undecidable manual S 154 0.0701 146 0.28 49
IV.ATFO.HHZ. 2021-03-02T23:53:37.10 0.1 positive manual P 201 0.2293 105 -0.17 98
IV.PE3.EHZ. 2021-03-02T23:53:36.14 0.1 undecidable manual P 310 0.1772 113 -0.29 95
IV.SSFR.HHZ. 2021-03-02T23:53:36.02 0.1 positive manual P 154 0.161 116 -0.16 100
IV.ARVD.HHZ. 2021-03-02T23:53:36.59 0.6 undecidable manual P 114 0.2041 108 -0.27 48
IV.PIEI.HHZ. 2021-03-02T23:53:35.26 0.3 negative manual P 247 0.1169 128 -0.28 73
IV.FRON.EHZ. 2021-03-02T23:53:34.95 1.0 undecidable manual P 154 0.0701 146 -0.04 26
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 6.57E-5 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 7.49E-5 1.64 AML other m 2021-03-02T23:53:40.89
IV.ARVD.HHN. ML:1.1 8.25E-5 0.36 AML other m 2021-03-02T23:53:40.75
IV.ATFO.HHN. ML:0.9 4.34E-5 0.32 AML other m 2021-03-02T23:53:41.93
IV.ATFO.HHE. ML:1 5.82E-5 1 AML other m 2021-03-02T23:53:42.72
IV.FOSV.EHN. ML:0.9 3.245E-5 0.14 AML other m 2021-03-02T23:53:43.42
IV.FOSV.EHE. ML:0.8 2.67E-5 0.08 AML other m 2021-03-02T23:53:43.56
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