Earthquake with magnitude of ML 0.9 on date 23-03-2019 and time 13:30:52 (UTC) in region 4 km W Arcevia (AN)

A magnitude ML 0.9 earthquake occured in region: 4 km W Arcevia (AN), on

  • 23-03-2019 13:30:52 (UTC)
  • 23-03-2019 14:30:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.51, 12.89 at 12 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
Arcevia AN 4 4612 4612
Pergola PU 7 6333 10945
Sassoferrato AN 9 7285 18230
Genga AN 10 1797 20027
Serra Sant'Abbondio PU 10 1027 21054
San Lorenzo in Campo PU 11 3414 24468
Serra de' Conti AN 12 3746 28214
Frontone PU 12 1300 29514
Serra San Quirico AN 12 2850 32364
Castelleone di Suasa AN 13 1676 34040
Mergo AN 13 1037 35077
Barbara AN 13 1368 36445
Fratte Rosa PU 13 966 37411
Montecarotto AN 14 1987 39398
Rosora AN 15 1985 41383
Poggio San Marcello AN 15 693 42076
Castelplanio AN 16 3540 45616
Ostra Vetere AN 17 3311 48927
Barchi PU 18 967 49894
Maiolati Spontini AN 19 6248 56142
Mondavio PU 19 3810 59952
Sant'Ippolito PU 19 1563 61515
Cupramontana AN 20 4756 66271
Corinaldo AN 20 4998 71269
Fabriano AN 20 31480 102749
Orciano di Pesaro PU 20 2028 104777

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km S of Fano (60888 inhabitants)
44 Km S of Pesaro (94582 inhabitants)
52 Km W of Ancona (100861 inhabitants)
61 Km NE of Perugia (166134 inhabitants)
64 Km N of Foligno (57155 inhabitants)
66 Km SE of Rimini (147750 inhabitants)
82 Km E of Arezzo (99543 inhabitants)
87 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
Rev 100 ML 0.9 2019-03-23
13:30:52
43.51 12.89 12 2019-03-23
13:34:41
Sala Sismica INGV-Roma 66839301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-23 13:30:52 ± 0.14
Latitude 43.51 ± 0.01
Longitude 12.89 ± 0.01
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66839301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 521
Semi-minor axis of confidence ellipse (meter) 393
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 0.2599
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 66839301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-23 13:34:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2019-03-23T13:31:02.56 0.3 undecidable manual S 275 0.2599 94 -0.05 73
IV.EL6.EHZ. 2019-03-23T13:31:02.51 0.6 undecidable manual S 141 0.2392 95 0.51 45
IV.FOSV.EHZ. 2019-03-23T13:31:01.77 0.1 undecidable manual S 204 0.2392 95 -0.23 94
IV.MPAG.EHZ. 2019-03-23T13:30:59.22 0.1 undecidable manual S 320 0.1502 105 -0.16 97
IV.FRON.EHZ. 2019-03-23T13:30:58.76 0.3 undecidable manual S 272 0.1205 115 0.18 72
IV.PIEI.HHZ. 2019-03-23T13:30:58.17 0.3 positive manual P 275 0.2599 94 -0.14 72
IV.SSFR.HNZ. 2019-03-23T13:30:58.40 0.3 undecidable manual S 226 0.1115 118 0.06 75
IV.EL6.EHZ. 2019-03-23T13:30:57.69 0.6 undecidable manual P 141 0.2392 95 -0.27 46
IV.FOSV.EHZ. 2019-03-23T13:30:57.80 0.6 negative manual P 204 0.2392 95 -0.16 48
IV.ARVD.HHZ. 2019-03-23T13:30:56.84 0.1 undecidable manual S 115 0.0387 155 -0.01 100
IV.MPAG.EHZ. 2019-03-23T13:30:56.54 0.6 positive manual P 320 0.1502 105 0.09 49
IV.FRON.EHZ. 2019-03-23T13:30:56.08 0.1 undecidable manual P 272 0.1205 115 0.09 98
IV.SSFR.HNZ. 2019-03-23T13:30:55.93 0.1 undecidable manual P 226 0.1115 118 0.08 99
IV.ARVD.HHZ. 2019-03-23T13:30:55.15 1.0 undecidable manual P 115 0.0387 155 0.16 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHE. ML:1 0.0001505 1.74 AML other m 2019-03-23T13:30:56.90
IV.ARVD.HHN. ML:1.1 0.000161 1.42 AML other m 2019-03-23T13:30:57.88
IV.MPAG.EHN. ML:0.6 3.41E-5 0.82 AML other m 2019-03-23T13:30:59.96
IV.MPAG.EHE. ML:0.9 6.97E-5 0.1 AML other m 2019-03-23T13:30:59.61
IV.FOSV.EHE. ML:1 5.045E-5 1.8 AML other m 2019-03-23T13:31:01.95
IV.FOSV.EHN. ML:1 4.845E-5 1.82 AML other m 2019-03-23T13:31:02.05
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