Earthquake with magnitude of ML 0.3 on date 25-09-2019 and time 18:40:16 (Italy) in region 2 km SE Visso (MC)

A magnitude ML 0.3 earthquake occured in region: 2 km SE Visso (MC), on

  • 25-09-2019 16:40:16 (UTC)
  • 25-09-2019 18:40:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.92, 13.1 at 9 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
Visso MC 2 1107 1107
Ussita MC 5 444 1551
Castelsantangelo sul Nera MC 5 281 1832
Preci PG 6 724 2556
Monte Cavallo MC 12 145 2701
Fiordimonte MC 14 202 2903
Bolognola MC 14 142 3045
Norcia PG 14 4957 8002
Acquacanina MC 14 121 8123
Fiastra MC 14 559 8682
Sellano PG 14 1079 9761
Pieve Torina MC 15 1458 11219
Pievebovigliana MC 16 866 12085
Cerreto di Spoleto PG 18 1075 13160
Montemonaco AP 19 604 13764
Muccia MC 19 915 14679
Montefortino FM 20 1178 15857

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
54 Km NE of Terni (111501 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
62 Km E of Perugia (166134 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
97 Km W of Montesilvano (53738 inhabitants)
98 Km NE of Viterbo (67173 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 0.3 2019-09-25
16:40:16
42.92 13.1 9 2019-09-25
16:45:57
Sala Sismica INGV-Roma 72765781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-25 16:40:16 ± 0.27
Latitude 42.92 ± 0.00
Longitude 13.10 ± 0.01
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72765781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 732
Semi-minor axis of confidence ellipse (meter) 667
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 730
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 183
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 7
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
Epicentral distance of station farthest from the epicenter (degree) 0.19156
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 72765781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-25 16:45:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
AC.VLO.HHZ. 2019-09-25T16:41:49.87 3.0 negative manual Pg 13.36 0
IV.SOI.EHZ. 2019-09-25T16:41:41.91 3.0 undecidable manual Pg 9.02 0
IV.CAGR.HHZ. 2019-09-25T16:41:33.23 3.0 positive manual Pn 1.03 0
IV.CRJA.HHZ. 2019-09-25T16:41:29.39 3.0 positive manual Pg 2.55 0
IV.IFOR.HHZ. 2019-09-25T16:41:19.76 3.0 undecidable manual Sg -2.17 0
IV.PAOL.HHZ. 2019-09-25T16:41:14.24 3.0 undecidable manual Sn -8.17 0
IV.ZONE.HHZ. 2019-09-25T16:41:03.77 3.0 positive manual Pn 1.6 0
IV.EUCT.HNZ. 2019-09-25T16:41:03.14 3.0 positive manual Pn 0.94 0
IV.GIUL.HHZ. 2019-09-25T16:40:52.10 3.0 undecidable manual S -6.42 0
IV.SBPO.HNZ. 2019-09-25T16:40:50.15 3.0 positive manual Pn 0.31 0
IV.RNI2.HHZ. 2019-09-25T16:40:37.99 3.0 undecidable manual Pn -2.59 0
IV.CSNT.HHZ. 2019-09-25T16:40:27.52 3.0 positive manual P -2.69 0
IV.MF5.EHZ. 2019-09-25T16:40:26.93 3.0 undecidable manual P 1.81 0
IV.CSP1.EHZ. 2019-09-25T16:40:23.93 0.1 undecidable manual S 24 0.1916 114 -0.21 94
IV.FDMO.HHZ. 2019-09-25T16:40:21.78 0.3 undecidable manual S 356 0.1205 125 0.05 74
IV.MC2.EHZ. 2019-09-25T16:40:20.28 0.1 undecidable manual S 95 0.0657 142 0.1 99
IV.CSP1.EHZ. 2019-09-25T16:40:20.64 3.0 undecidable manual P 24 0.1916 114 -0.1 0
IV.NRCA.HHZ. 2019-09-25T16:40:20.51 0.1 undecidable manual S 173 0.0836 135 -0.14 97
IV.FDMO.HHZ. 2019-09-25T16:40:19.46 0.1 undecidable manual P 356 0.1205 125 0.11 97
IV.NRCA.HHZ. 2019-09-25T16:40:18.74 0.1 undecidable manual P 173 0.0836 135 0.01 100
IV.MC2.EHZ. 2019-09-25T16:40:18.56 0.3 undecidable manual P 95 0.0657 142 0.1 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.8 7.75E-5 0.14 AML other m 2019-09-25T16:40:20.69
IV.NRCA.HHN. ML:0.6 6.035E-5 0.08 AML other m 2019-09-25T16:40:20.72
IV.FDMO.HHE. ML:0 1.15135095E-5 0.1152 AML other m 2019-09-25T16:40:22.30
IV.FDMO.HHN. ML:0 1.09437115E-5 0.192 AML other m 2019-09-25T16:40:22.08
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