ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.2 on date 20-03-2019 and time 12:19:25 (UTC) in region 6 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.2 earthquake occured in region: 6 km SE Castelsantangelo sul Nera (MC), on

  • 20-03-2019 12:19:25 (UTC)
  • 20-03-2019 13:19:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.86, 13.2 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
Castelsantangelo sul Nera MC 6 281 281
Montegallo AP 11 523 804
Ussita MC 11 444 1248
Norcia PG 11 4957 6205
Montemonaco AP 12 604 6809
Arquata del Tronto AP 12 1178 7987
Visso MC 12 1107 9094
Preci PG 13 724 9818
Montefortino FM 15 1178 10996
Bolognola MC 16 142 11138
Accumoli RI 18 667 11805
Amandola FM 19 3629 15434
Acquasanta Terme AP 20 2916 18350
Acquacanina MC 20 121 18471

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
47 Km W of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
58 Km N of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
94 Km W of Pescara (121014 inhabitants)
97 Km NW of Chieti (51815 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 1.2 2019-03-20
12:19:25
42.86 13.2 11 2019-03-20
12:28:51
Sala Sismica INGV-Roma 66714831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-20 12:19:25 ± 0.08
Latitude 42.86 ± 0.01
Longitude 13.20 ± 0.01
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66714831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 682
Semi-minor axis of confidence ellipse (meter) 467
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 201
Circular confidence region, given by single value of horizontal uncertainty (meter) 680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.23203
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.5
Num. used stations 12
Type of magnitude ML
Reference to an origin 66714831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-20 12:28:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ZONE.HHZ. 2019-03-20T12:21:14.06 3.0 undecidable manual Sg 2.67 0
IV.EUCT.HNZ. 2019-03-20T12:21:11.60 3.0 undecidable manual Sn -0.91 0
GU.RNCA.HHZ. 2019-03-20T12:20:54.85 3.0 undecidable manual Sn -9.68 0
IV.SBPO.HNZ. 2019-03-20T12:20:53.99 3.0 undecidable manual Sg 4.78 0
IV.GMB.BHZ. 2019-03-20T12:20:47.32 3.0 undecidable manual Pg 10.98 0
IV.NDIM.HNZ. 2019-03-20T12:20:45.74 3.0 undecidable manual Sg -0.39 0
GU.CIRO.HHZ. 2019-03-20T12:20:44.52 3.0 positive manual Pn 4.85 0
IV.HAGA.HHZ. 2019-03-20T12:20:41.28 3.0 undecidable manual Pn -3.94 0
IX.STN3.HHZ.02 2019-03-20T12:20:41.01 3.0 undecidable manual Sn -2.22 0
IV.CAGR.HHZ. 2019-03-20T12:20:40.71 3.0 undecidable manual Pn 1.68 0
IV.ILLI.HHZ. 2019-03-20T12:20:40.21 3.0 positive manual Pg 10.87 0
OE.ARSA.BHZ. 2019-03-20T12:20:36.52 3.0 negative manual Pn -2.45 0
IV.ZONE.HHZ. 2019-03-20T12:20:27.94 3.0 undecidable manual Pg 4.22 0
IV.FNVD.HHZ. 2019-03-20T12:20:24.80 3.0 undecidable manual Sn -5.18 0
IV.SEI.HHZ. 2019-03-20T12:20:18.81 3.0 undecidable manual Sn -6.35 0
IV.SBPO.HNZ. 2019-03-20T12:20:16.86 3.0 negative manual Pg 5.6 0
IV.CMPR.HHZ. 2019-03-20T12:20:10.48 3.0 undecidable manual Pg 2.61 0
IT.GLNS.HNZ. 2019-03-20T12:19:49.96 3.0 undecidable manual Pn -0.22 0
IV.LIK.EHZ.01 2019-03-20T12:19:40.88 3.0 negative manual P -3.88 0
IV.RDP.HHZ. 2019-03-20T12:19:36.00 3.0 negative manual P -4.33 0
IV.MF5.EHE. 2019-03-20T12:19:35.23 0.6 undecidable manual S 55 0.232 90 0.71 42
IV.FOSV.EHZ. 2019-03-20T12:19:34.73 3.0 undecidable manual P -5.15 0
IT.MTCL.HGE. 2019-03-20T12:19:33.44 0.3 undecidable manual S 313 0.2014 91 -0.18 69
IV.FDMO.HHZ. 2019-03-20T12:19:33.29 0.3 undecidable manual S 336 0.1988 91 -0.25 68
IV.CSP1.EHZ. 2019-03-20T12:19:32.81 3.0 negative manual P -2.25 0
IV.MTRA.EHZ. 2019-03-20T12:19:32.68 0.3 undecidable manual S 124 0.1754 91 -0.16 70
IV.MF5.EHE. 2019-03-20T12:19:30.75 0.6 undecidable manual P 55 0.232 90 0.17 48
IV.MMO1.EHZ. 2019-03-20T12:19:30.36 0.3 undecidable manual S 65 0.1025 112 -0.37 70
IT.MTCL.HGE. 2019-03-20T12:19:30.14 0.3 undecidable manual P 313 0.2014 91 0.08 73
IV.MC2.EHZ. 2019-03-20T12:19:29.73 0.3 undecidable manual S 352 0.0567 141 0.1 73
IV.FDMO.HHZ. 2019-03-20T12:19:29.91 0.3 undecidable manual P 336 0.1988 91 -0.1 71
IV.NRCA.HNZ. 2019-03-20T12:19:29.80 0.1 undecidable manual S 251 0.0665 135 -0.03 100
IV.MTRA.EHZ. 2019-03-20T12:19:29.54 0.3 undecidable manual P 124 0.1754 91 -0.07 72
IV.NRCA.HNZ. 2019-03-20T12:19:28.08 0.1 undecidable manual P 251 0.0665 135 0.2 96
IV.MMO1.EHZ. 2019-03-20T12:19:28.32 0.3 undecidable manual P 65 0.1025 112 -0.07 74
IV.MC2.EHZ. 2019-03-20T12:19:27.97 0.3 undecidable manual P 352 0.0567 141 0.21 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FNVD.HHE. ML:3.2 0.000354 1.24 AML other m 2019-03-20T12:20:30.63
IV.NRCA.HHN. ML:1.4 0.0003255 0.16 AML other m 2019-03-20T12:19:29.98
IV.FNVD.HHN. ML:3.3 0.000535 0.86 AML other m 2019-03-20T12:20:29.54
IV.NRCA.HNE. ML:1.4 0.0003298034 0.7424 AML other m 2019-03-20T12:19:30.25
IV.NRCA.HNN. ML:1.3 0.00028759045 0.1472 AML other m 2019-03-20T12:19:29.98
IV.MTRA.EHE. ML:0.8 4.8007815E-5 0.4416 AML other m 2019-03-20T12:19:33.04
IV.MTRA.EHN. ML:0.5 2.250616E-5 0.4992 AML other m 2019-03-20T12:19:33.01
IV.MTRA.HNE. ML:1.1 9.653088E-5 0.4992 AML other m 2019-03-20T12:19:33.13
IV.MTRA.HNN. ML:1 8.0328115E-5 0.2688 AML other m 2019-03-20T12:19:33.18
IV.FDMO.HHE. ML:0.7 2.8746395E-5 0.7168 AML other m 2019-03-20T12:19:33.45
IV.FDMO.HHN. ML:0.7 3.5903665E-5 1.9008 AML other m 2019-03-20T12:19:32.94
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
Waveforms Seismic signals in full SEED format Download