Earthquake with magnitude of ML 1.5 on date 04-04-2020 and time 19:50:58 (Italy) in region 2 km N Ussita (MC)

A magnitude ML 1.5 earthquake occured in region: 2 km N Ussita (MC), on

  • 04-04-2020 17:50:58 (UTC)
  • 04-04-2020 19:50:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.97, 13.14 at 8 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 2 444 444
Visso MC 6 1107 1551
Acquacanina MC 8 121 1672
Bolognola MC 8 142 1814
Fiastra MC 8 559 2373
Castelsantangelo sul Nera MC 8 281 2654
Fiordimonte MC 9 202 2856
Pieve Torina MC 12 1458 4314
Pievebovigliana MC 12 866 5180
Monte Cavallo MC 12 145 5325
Preci PG 13 724 6049
Sarnano MC 15 3264 9313
Muccia MC 15 915 10228
Montefortino FM 16 1178 11406
Montemonaco AP 17 604 12010
Amandola FM 18 3629 15639
Cessapalombo MC 19 512 16151
Serravalle di Chienti MC 19 1070 17221
Sellano PG 20 1079 18300
Gualdo MC 20 815 19115
Norcia PG 20 4957 24072
Camerino MC 20 6974 31046

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
61 Km NE of Terni (111501 inhabitants)
63 Km E of Perugia (166134 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
96 Km NW of Montesilvano (53738 inhabitants)
98 Km S of Fano (60888 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 1.5 2020-04-04
17:50:58
42.97 13.14 8 2020-04-04
17:57:36
Sala Sismica INGV-Roma 77889411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-04 17:50:58 ± 0.07
Latitude 42.97 ± 0.00
Longitude 13.14 ± 0.00
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77889411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 51
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 86
Circular confidence region, given by single value of horizontal uncertainty (meter) 250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.06475
Epicentral distance of station farthest from the epicenter (degree) 0.36333
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 77889411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-04 17:57:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2020-04-04T17:51:06.22 1.0 undecidable manual P 333 0.3238 102 0.02 24
IV.GUMA.HHZ. 2020-04-04T17:51:06.30 1.0 undecidable manual S 56 0.17 112 0.41 23
IV.PF6.EHZ. 2020-04-04T17:51:06.20 0.6 undecidable manual S 12 0.1745 111 0.13 48
IV.EL6.EHZ. 2020-04-04T17:51:06.89 0.6 negative manual P 355 0.3633 50 -0.05 47
IV.MMO1.EHZ. 2020-04-04T17:51:05.08 0.6 undecidable manual S 117 0.1502 114 -0.13 48
IV.CSP1.EHZ. 2020-04-04T17:51:04.68 0.3 undecidable manual S 20 0.1331 117 0.09 73
IV.MF5.EHZ. 2020-04-04T17:51:04.46 1.0 negative manual P 85 0.2329 106 0.22 23
IV.NRCA.HHZ. 2020-04-04T17:51:04.93 0.3 undecidable manual S 189 0.1349 117 0.27 71
IV.CESI.HHZ. 2020-04-04T17:51:03.19 0.1 undecidable manual P 282 0.1781 111 0.1 97
IV.MML1.HNZ. 2020-04-04T17:51:03.28 0.6 undecidable manual P 320 0.1925 109 -0.11 48
IV.GUMA.HHZ. 2020-04-04T17:51:03.17 0.6 positive manual P 56 0.17 112 0.25 47
IV.NRCA.HHZ. 2020-04-04T17:51:02.13 0.1 undecidable manual P 189 0.1349 117 -0.08 98
IV.MC2.EHZ. 2020-04-04T17:51:02.39 0.6 undecidable manual S 149 0.0648 136 -0.07 50
IV.MMO1.EHZ. 2020-04-04T17:51:02.31 0.6 negative manual P 117 0.1502 114 -0.21 48
IV.CSP1.EHZ. 2020-04-04T17:51:02.15 0.3 undecidable manual P 20 0.1331 117 -0.01 74
IV.FDMO.HHZ. 2020-04-04T17:51:02.74 0.3 undecidable manual S 330 0.0809 130 -0.16 73
IV.PF6.EHZ. 2020-04-04T17:51:02.86 0.6 undecidable manual P 12 0.1745 111 -0.16 48
IV.FEMA.HNZ. 2020-04-04T17:51:02.64 0.6 undecidable manual S 266 0.0683 135 0.09 50
IV.FDMO.HHZ. 2020-04-04T17:51:01.06 0.3 negative manual P 330 0.0809 130 -0.13 73
IV.FEMA.HNZ. 2020-04-04T17:51:01.03 0.1 undecidable manual P 266 0.0683 135 0.04 100
IT.MTCL.HGZ. 2020-04-04T17:51:01.72 0.6 undecidable manual P 284 0.1088 122 0.03 50
IV.MC2.EHZ. 2020-04-04T17:51:00.76 0.3 negative manual P 149 0.0648 136 -0.17 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0 0.0002975781 0.256 AML other m 2020-04-04T17:51:07.16
IV.CESI.HHN. ML:0 0.0001894071 0.4224 AML other m 2020-04-04T17:51:07.71
IV.GUMA.HHN. ML:0 0.0002702024 0.6528 AML other m 2020-04-04T17:51:07.71
IV.GUMA.HHE. ML:0 0.0002045175 0.32 AML other m 2020-04-04T17:51:07.40
IV.FDMO.HHE. ML:1.3 0.0003402227 0.2432 AML other m 2020-04-04T17:51:03.41
IV.FDMO.HHN. ML:1.4 0.0003744948 0.1408 AML other m 2020-04-04T17:51:03.55
IV.NRCA.HHE. ML:1.8 0.00065799595 0.1408 AML other m 2020-04-04T17:51:05.59
IV.NRCA.HHN. ML:1.6 0.0003681677 0.2816 AML other m 2020-04-04T17:51:05.35
IV.NRCA.HNE. ML:1.8 0.00062407105 0.128 AML other m 2020-04-04T17:51:05.66
IV.NRCA.HNN. ML:1.6 0.000387752785 0.2944 AML other m 2020-04-04T17:51:05.21
IV.GUMA.HNE. ML:1.5 0.00025990955 0.2176 AML other m 2020-04-04T17:51:07.40
IV.GUMA.HNN. ML:1.6 0.0003566265 0.3072 AML other m 2020-04-04T17:51:07.72
IV.CESI.HNE. ML:1.6 0.00029176985 0.2432 AML other m 2020-04-04T17:51:07.04
IV.CESI.HNN. ML:1.6 0.0002881869 0.4608 AML other m 2020-04-04T17:51:09.32
IV.MF5.EHE. ML:1.4 0.00013937255 0.704 AML other m 2020-04-04T17:51:13.17
IV.MF5.EHN. ML:1.1 7.862683E-5 0.4608 AML other m 2020-04-04T17:51:12.15
IV.SNTG.HHE. ML:0.8 2.281002E-5 0.2688 AML other m 2020-04-04T17:51:13.77
IV.SNTG.HHN. ML:0.9 3.459274E-5 0.192 AML other m 2020-04-04T17:51:13.04
IV.SNTG.HNE. ML:1.5 0.00011412563 0.5888 AML other m 2020-04-04T17:51:14.20
IV.SNTG.HNN. ML:1.7 0.0001828984 1.1776 AML other m 2020-04-04T17:51:10.18
IV.EL6.EHE. ML:1.2 5.3834615E-5 0.1408 AML other m 2020-04-04T17:51:14.04
IV.EL6.EHN. ML:1.3 6.331703E-5 0.4992 AML other m 2020-04-04T17:51:17.16
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