Earthquake with magnitude of ML 0.6 on date 21-03-2020 and time 15:11:30 (Italy) in region 4 km NW Ussita (MC)

A magnitude ML 0.6 earthquake occured in region: 4 km NW Ussita (MC), on

  • 21-03-2020 14:11:30 (UTC)
  • 21-03-2020 15:11:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.98, 13.13 at 13 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
Ussita MC 4 444 444
Visso MC 6 1107 1551
Fiastra MC 7 559 2110
Acquacanina MC 7 121 2231
Fiordimonte MC 7 202 2433
Bolognola MC 9 142 2575
Castelsantangelo sul Nera MC 9 281 2856
Pieve Torina MC 10 1458 4314
Pievebovigliana MC 10 866 5180
Monte Cavallo MC 10 145 5325
Preci PG 13 724 6049
Muccia MC 14 915 6964
Sarnano MC 16 3264 10228
Serravalle di Chienti MC 18 1070 11298
Montefortino FM 18 1178 12476
Camerino MC 18 6974 19450
Cessapalombo MC 18 512 19962
Montemonaco AP 19 604 20566
Amandola FM 19 3629 24195
Sellano PG 19 1079 25274
Caldarola MC 20 1823 27097

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
59 Km NW of Teramo (54892 inhabitants)
61 Km NE of Terni (111501 inhabitants)
62 Km E of Perugia (166134 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
97 Km S of Fano (60888 inhabitants)
98 Km NW 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 0.6 2020-03-21
14:11:30
42.98 13.13 13 2020-03-21
14:23:23
Sala Sismica INGV-Roma 77437931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-21 14:11:30 ± 0.13
Latitude 42.98 ± 0.00
Longitude 13.13 ± 0.01
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77437931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 611
Semi-minor axis of confidence ellipse (meter) 239
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 74
Circular confidence region, given by single value of horizontal uncertainty (meter) 610
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.17717
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 77437931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-21 14:23:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SRES.HHZ. 2020-03-21T14:11:46.73 3.0 negative manual P -0.3 0
IV.MML1.HNZ. 2020-03-21T14:11:38.10 0.6 undecidable manual S 321 0.1772 102 0.07 50
IV.PF6.EHE. 2020-03-21T14:11:37.83 0.1 undecidable manual S 17 0.1682 103 0.05 100
IV.MMO1.EHZ. 2020-03-21T14:11:37.67 0.3 undecidable manual S 118 0.1655 104 -0.04 75
IV.NRCA.HHZ. 2020-03-21T14:11:36.71 0.3 undecidable manual S 184 0.143 109 -0.35 70
IV.CSP1.EHZ. 2020-03-21T14:11:36.79 0.3 undecidable manual S 26 0.1286 114 0.13 74
IT.MTCL.HGE. 2020-03-21T14:11:35.49 0.3 undecidable manual S 281 0.0944 127 -0.29 72
IV.MML1.HNZ. 2020-03-21T14:11:35.03 0.3 undecidable manual P 321 0.1772 102 0.27 72
IV.FDMO.HHZ. 2020-03-21T14:11:35.01 0.3 undecidable manual S 335 0.0665 141 -0.17 75
IV.MC2.EHZ. 2020-03-21T14:11:35.48 0.3 undecidable manual S 145 0.08 134 0.02 76
IV.CESI.HHZ. 2020-03-21T14:11:34.85 0.3 negative manual P 280 0.1646 104 0.31 72
IV.CSP1.EHZ. 2020-03-21T14:11:34.30 1.0 negative manual P 26 0.1286 114 0.34 24
IV.MMO1.EHZ. 2020-03-21T14:11:34.77 0.6 positive manual P 118 0.1655 104 0.2 49
IV.FDMO.HHZ. 2020-03-21T14:11:33.28 0.3 undecidable manual P 335 0.0665 141 0.17 74
IV.MC2.EHZ. 2020-03-21T14:11:33.56 0.1 undecidable manual P 145 0.08 134 0.29 97
IV.NRCA.HHZ. 2020-03-21T14:11:33.98 0.6 undecidable manual P 184 0.143 109 -0.22 48
IV.PF6.EHE. 2020-03-21T14:11:33.92 0.1 undecidable manual P 17 0.1682 103 -0.69 83
IT.MTCL.HGE. 2020-03-21T14:11:33.60 0.3 undecidable manual P 281 0.0944 127 0.14 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.5 4.122942E-5 0.1216 AML other m 2020-03-21T14:11:35.31
IV.FDMO.HHE. ML:0.1 1.6432048E-5 0.1408 AML other m 2020-03-21T14:11:36.20
IV.NRCA.HHE. ML:0.8 4.875264E-5 0.16 AML other m 2020-03-21T14:11:36.95
IV.NRCA.HHN. ML:0.6 3.1534175E-5 0.0768 AML other m 2020-03-21T14:11:37.40
IV.CSP1.EHN. ML:0.6 3.2730335E-5 0.16 AML other m 2020-03-21T14:11:37.04
IV.CSP1.EHE. ML:0.6 3.4614465E-5 0.2432 AML other m 2020-03-21T14:11:37.15
IV.CESI.HHN. ML:0.5 2.3266268E-5 0.1792 AML other m 2020-03-21T14:11:38.15
IV.CESI.HNE. ML:1.2 0.000105864387 0.4992 AML other m 2020-03-21T14:11:39.68
IV.CESI.HNN. ML:1.2 0.0001095320695 0.8128 AML other m 2020-03-21T14:11:41.99
IV.CESI.HHE. ML:0.3 1.429043E-5 0.1408 AML other m 2020-03-21T14:11:38.25
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