Earthquake with magnitude of ML 1.6 on date 22-03-2020 and time 14:00:30 (Italy) in region 2 km W Visso (MC)

A magnitude ML 1.6 earthquake occured in region: 2 km W Visso (MC), on

  • 22-03-2020 13:00:30 (UTC)
  • 22-03-2020 14:00:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.93, 13.06 at 10 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
Preci PG 6 724 1831
Ussita MC 7 444 2275
Castelsantangelo sul Nera MC 8 281 2556
Monte Cavallo MC 9 145 2701
Sellano PG 12 1079 3780
Fiordimonte MC 12 202 3982
Pieve Torina MC 13 1458 5440
Fiastra MC 14 559 5999
Acquacanina MC 15 121 6120
Pievebovigliana MC 15 866 6986
Norcia PG 15 4957 11943
Bolognola MC 15 142 12085
Cerreto di Spoleto PG 17 1075 13160
Muccia MC 17 915 14075
Serravalle di Chienti MC 18 1070 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
53 Km NE of Terni (111501 inhabitants)
58 Km E of Perugia (166134 inhabitants)
60 Km NW of Teramo (54892 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
97 Km NE of Viterbo (67173 inhabitants)
100 Km W of Montesilvano (53738 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 1.6 2020-03-22
13:00:30
42.93 13.06 10 2020-03-22
13:14:26
Sala Sismica INGV-Roma 77468071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-22 13:00:30 ± 0.04
Latitude 42.93 ± 0.00
Longitude 13.06 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77468071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 263
Semi-minor axis of confidence ellipse (meter) 223
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) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 51
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.63852
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 21
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 77468071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-22 13:14:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FRON.EHZ. 2020-03-22T13:00:53.18 0.3 undecidable manual S 337 0.6385 50 0.64 58
IT.RMVT.HGZ. 2020-03-22T13:00:49.60 3.0 undecidable manual P -0.48 0
IV.TERO.HHZ. 2020-03-22T13:00:48.43 0.3 undecidable manual S 127 0.5 50 -0.02 70
IV.CESX.HHZ. 2020-03-22T13:00:47.86 0.3 undecidable manual S 228 0.4739 50 0.2 68
IV.EL6.EHZ. 2020-03-22T13:00:45.57 0.6 undecidable manual S 4 0.402 50 0.04 47
IV.LNSS.HHZ. 2020-03-22T13:00:43.20 0.3 undecidable manual S 183 0.3256 50 -0.07 72
IV.MF5.EHZ. 2020-03-22T13:00:43.13 0.6 undecidable manual S 78 0.2959 50 0.74 40
IV.FRON.EHZ. 2020-03-22T13:00:43.42 0.1 undecidable manual P 337 0.6385 50 0.06 90
IV.SNTG.HHZ. 2020-03-22T13:00:43.37 0.6 undecidable manual S 345 0.339 50 -0.28 46
IV.MTRA.EHZ. 2020-03-22T13:00:42.25 0.3 undecidable manual S 125 0.2986 50 -0.21 70
IT.FOPC.HGZ. 2020-03-22T13:00:41.65 0.3 undecidable manual S 279 0.2671 50 0.12 72
IV.GUMA.HHZ. 2020-03-22T13:00:40.80 0.3 undecidable manual S 56 0.2401 110 0.15 72
IV.TERO.HHZ. 2020-03-22T13:00:40.78 0.1 undecidable manual P 127 0.5 50 -0.22 89
IV.MNTT.EHZ. 2020-03-22T13:00:40.21 1.0 positive manual P 71 0.411 50 0.73 20
IV.CESX.HHZ. 2020-03-22T13:00:40.45 0.1 undecidable manual P 228 0.4739 50 -0.1 92
IV.PF6.EHZ. 2020-03-22T13:00:39.92 0.3 undecidable manual S 24 0.2302 111 -0.38 68
IV.EL6.EHZ. 2020-03-22T13:00:39.17 0.6 positive manual P 4 0.402 50 -0.14 46
IV.MMO1.EHZ. 2020-03-22T13:00:38.89 0.6 undecidable manual S 98 0.1952 114 -0.15 48
IV.CSP1.EHZ. 2020-03-22T13:00:38.83 0.6 undecidable manual S 32 0.1934 114 -0.16 48
IV.MML1.HNZ. 2020-03-22T13:00:38.79 0.3 undecidable manual S 340 0.197 114 -0.32 70
IV.MTRA.EHZ. 2020-03-22T13:00:37.32 0.1 undecidable manual P 125 0.2986 50 -0.23 93
IV.SNTG.HHZ. 2020-03-22T13:00:37.96 1.0 undecidable manual P 345 0.339 50 -0.28 23
IV.LNSS.HHZ. 2020-03-22T13:00:37.80 0.1 undecidable manual P 183 0.3256 50 -0.21 93
IV.CESI.HHZ. 2020-03-22T13:00:37.20 0.6 undecidable manual S 303 0.1394 122 0.06 50
IV.MF5.EHZ. 2020-03-22T13:00:37.70 0.6 positive manual P 78 0.2959 50 0.19 47
IT.FOPC.HGZ. 2020-03-22T13:00:36.84 0.1 undecidable manual P 279 0.2671 50 -0.17 95
IV.FDMO.HHZ. 2020-03-22T13:00:36.19 0.6 undecidable manual S 9 0.1097 128 -0.01 50
IV.GUMA.HHZ. 2020-03-22T13:00:36.64 0.1 undecidable manual P 56 0.2401 110 0.14 96
IV.PF6.EHZ. 2020-03-22T13:00:36.11 0.1 undecidable manual P 24 0.2302 111 -0.19 95
IV.MC2.EHZ. 2020-03-22T13:00:35.95 0.6 undecidable manual S 100 0.0935 133 0.22 48
IV.CSP1.EHZ. 2020-03-22T13:00:35.50 0.6 negative manual P 32 0.1934 114 -0.04 49
IV.MML1.HNZ. 2020-03-22T13:00:35.50 0.1 undecidable manual P 340 0.197 114 -0.11 97
IV.NRCA.HNZ. 2020-03-22T13:00:35.98 0.6 undecidable manual S 159 0.1016 130 0.01 51
IV.MMO1.EHZ. 2020-03-22T13:00:35.55 0.3 positive manual P 98 0.1952 114 -0.02 74
IT.MTCL.HGZ. 2020-03-22T13:00:35.22 0.3 undecidable manual S 324 0.0809 137 -0.16 74
IV.CESI.HHZ. 2020-03-22T13:00:34.62 0.1 positive manual P 303 0.1394 122 0.15 98
IV.MC2.EHZ. 2020-03-22T13:00:34.00 1.0 undecidable manual P 100 0.0935 133 0.34 24
IV.FEMA.HNZ. 2020-03-22T13:00:34.48 0.6 undecidable manual S 344 0.0351 158 0.06 51
IV.FDMO.HHZ. 2020-03-22T13:00:34.04 0.1 undecidable manual P 9 0.1097 128 0.11 99
IV.FEMA.HNZ. 2020-03-22T13:00:33.15 0.1 undecidable manual P 344 0.0351 158 0.24 98
IT.MTCL.HGZ. 2020-03-22T13:00:33.54 0.1 undecidable manual P 324 0.0809 137 0.08 100
IV.NRCA.HNZ. 2020-03-22T13:00:33.95 0.1 undecidable manual P 159 0.1016 130 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.6 0.0004525 0.3 AML other m 2020-03-22T13:00:36.12
IV.FEMA.HNN. ML:1.8 0.001285 1.38 AML other m 2020-03-22T13:00:35.05
IV.NRCA.HHE. ML:1.6 0.000498 0.18 AML other m 2020-03-22T13:00:36.17
IV.CESI.HHE. ML:1.5 0.000332 0.24 AML other m 2020-03-22T13:00:37.59
IV.CESI.HHN. ML:1.8 0.0006815 0.22 AML other m 2020-03-22T13:00:37.48
IV.CSP1.EHE. ML:1.7 0.0003425 0.28 AML other m 2020-03-22T13:00:39.48
IV.CSP1.EHN. ML:1.8 0.000451 0.26 AML other m 2020-03-22T13:00:39.57
IV.MTRA.EHE. ML:1.2 7.627066E-5 0.256 AML other m 2020-03-22T13:00:46.61
IV.MTRA.EHN. ML:1.5 0.000132949 0.3584 AML other m 2020-03-22T13:00:44.42
IV.SNTG.HHE. ML:1 4.2215331E-5 0.1408 AML other m 2020-03-22T13:00:44.41
IV.SNTG.HHN. ML:1.1 4.3225485E-5 0.2432 AML other m 2020-03-22T13:00:45.04
IV.EL6.EHE. ML:1.6 0.0001178517925 0.16 AML other m 2020-03-22T13:00:46.86
IV.EL6.EHN. ML:1.6 0.00012365923 0.2432 AML other m 2020-03-22T13:00:46.67
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