ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 0.4 on date 16-03-2019 and time 03:03:18 (UTC) in region 6 km SW Sassoferrato (AN)

A magnitude ML 0.4 earthquake occured in region: 6 km SW Sassoferrato (AN), on

  • 16-03-2019 03:03:18 (UTC)
  • 16-03-2019 04:03:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.39, 12.82 at 11 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
Sassoferrato AN 6 7285 7285
Sigillo PG 9 2404 9689
Costacciaro PG 9 1216 10905
Fabriano AN 10 31480 42385
Genga AN 11 1797 44182
Serra Sant'Abbondio PU 12 1027 45209
Fossato di Vico PG 12 2840 48049
Scheggia e Pascelupo PG 12 1393 49442
Frontone PU 15 1300 50742
Arcevia AN 16 4612 55354
Cerreto d'Esi AN 16 3817 59171
Serra San Quirico AN 17 2850 62021
Cantiano PU 18 2245 64266
Gualdo Tadino PG 18 15208 79474
Esanatoglia MC 19 2034 81508
Pergola PU 19 6333 87841
Gubbio PG 20 32216 120057

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km NE of Perugia (166134 inhabitants)
49 Km N of Foligno (57155 inhabitants)
53 Km SW of Fano (60888 inhabitants)
58 Km S of Pesaro (94582 inhabitants)
62 Km W of Ancona (100861 inhabitants)
76 Km E of Arezzo (99543 inhabitants)
77 Km S of Rimini (147750 inhabitants)
93 Km N of Terni (111501 inhabitants)
95 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 0.4 2019-03-16
03:03:18
43.39 12.82 11 2019-03-16
03:17:39
Sala Sismica INGV-Roma 66576201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-16 03:03:18 ± 0.05
Latitude 43.39 ± 0.00
Longitude 12.82 ± 0.01
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66576201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 480
Semi-minor axis of confidence ellipse (meter) 190
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.40739
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 66576201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-16 03:17:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LAV9.HHZ. 2019-03-16T03:04:00.29 3.0 undecidable manual Sn -2.04 0
IV.SEI.HHZ. 2019-03-16T03:03:47.56 3.0 undecidable manual Sg 0.29 0
IV.CIMA.HNZ. 2019-03-16T03:03:34.33 3.0 negative manual Pg 4.42 0
IV.FDMO.HHZ. 2019-03-16T03:03:33.14 0.6 undecidable manual S 151 0.4074 90 0.25 45
IV.MML1.EHE. 2019-03-16T03:03:29.97 0.3 undecidable manual S 158 0.3013 90 0.22 70
IV.NARO.HHZ. 2019-03-16T03:03:28.99 0.3 undecidable manual S 322 0.277 90 -0.05 73
IV.PIEI.HHZ. 2019-03-16T03:03:28.08 0.3 undecidable manual S 305 0.2491 90 -0.12 72
IV.MURB.HHZ. 2019-03-16T03:03:28.79 3.0 undecidable manual S 0
IV.FDMO.HHZ. 2019-03-16T03:03:26.53 1.0 positive manual P 151 0.4074 90 -0.22 23
IV.ARVD.HHZ. 2019-03-16T03:03:25.01 0.6 undecidable manual S 41 0.1394 90 0.04 50
IV.SNTG.HHZ. 2019-03-16T03:03:25.68 0.6 undecidable manual S 146 0.1646 90 -0.03 50
IV.NARO.HHZ. 2019-03-16T03:03:24.54 0.1 undecidable manual P 322 0.277 90 0.01 98
IV.FOSV.EHZ. 2019-03-16T03:03:24.04 0.6 undecidable manual S 202 0.1052 110 0.08 50
IV.MML1.EHE. 2019-03-16T03:03:24.64 0.1 undecidable manual P 158 0.3013 90 -0.3 93
IV.PIEI.HHZ. 2019-03-16T03:03:23.90 0.1 undecidable manual P 305 0.2491 90 -0.15 96
IV.ATCC.EHZ. 2019-03-16T03:03:23.92 3.0 undecidable manual S -0.52 0
IV.ARVD.HHZ. 2019-03-16T03:03:22.29 0.6 negative manual P 41 0.1394 90 0.11 49
IV.SNTG.HHZ. 2019-03-16T03:03:22.50 0.1 undecidable manual P 146 0.1646 90 -0.11 99
IV.FOSV.EHZ. 2019-03-16T03:03:21.69 0.1 undecidable manual P 202 0.1052 110 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHE. ML:0.6 3.907416E-5 0.08 AML other m 2019-03-16T03:03:24.16
IV.FOSV.EHN. ML:0.6 4.1722555E-5 0.12 AML other m 2019-03-16T03:03:24.23
IV.ARVD.HHE. ML:0.4 2.23015E-5 0.08 AML other m 2019-03-16T03:03:25.42
IV.ARVD.HHN. ML:0.2 1.5072925E-5 0.16 AML other m 2019-03-16T03:03:25.29
IV.SNTG.HHE. ML:0.1 8.91662555E-6 0.1984 AML other m 2019-03-16T03:03:27.84
IV.SNTG.HHN. ML:0.1 9.3882215E-6 0.0992 AML other m 2019-03-16T03:03:25.89
IV.SNTG.HNE. ML:1.1 0.00010134167 0.5904 AML other m 2019-03-16T03:03:30.30
IV.SNTG.HNN. ML:1.4 0.000191427 0.8608 AML other m 2019-03-16T03:03:33.57
IV.PIEI.HHE. ML:0.3 1.1167945E-5 0.1408 AML other m 2019-03-16T03:03:28.80
IV.PIEI.HHN. ML:0.3 8.114255E-6 0.08 AML other m 2019-03-16T03:03:28.55
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