Earthquake with magnitude of ML 1.1 on date 04-05-2020 and time 05:28:16 (Italy) in region 8 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.1 earthquake occured in region: 8 km SE Castelsantangelo sul Nera (MC), on

  • 04-05-2020 03:28:16 (UTC)
  • 04-05-2020 05:28:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.83, 13.2 at 6 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 8 281 281
Arquata del Tronto AP 10 1178 1459
Norcia PG 10 4957 6416
Montegallo AP 11 523 6939
Montemonaco AP 13 604 7543
Ussita MC 14 444 7987
Preci PG 15 724 8711
Visso MC 15 1107 9818
Accumoli RI 16 667 10485
Montefortino FM 17 1178 11663
Acquasanta Terme AP 18 2916 14579
Bolognola MC 18 142 14721

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
45 Km W of Teramo (54892 inhabitants)
55 Km NE of Terni (111501 inhabitants)
56 Km N of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
91 Km S of Ancona (100861 inhabitants)
92 Km W of Pescara (121014 inhabitants)
95 Km NW of Chieti (51815 inhabitants)
100 Km NE of Guidonia Montecelio (88673 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
Reviewed
Rev100
ML 1.1 2020-05-04
03:28:16
42.83 13.21 6 2020-05-04
03:41:18
Sala Sismica INGV-Roma 78826041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-04 03:28:16 ± 0.19
Latitude 42.83 ± 0.00
Longitude 13.21 ± 0.00
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78826041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 550
Semi-minor axis of confidence ellipse (meter) 130
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 191
Circular confidence region, given by single value of horizontal uncertainty (meter) 550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 153
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.06655
Epicentral distance of station farthest from the epicenter (degree) 0.27969
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 78826041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-04 03:41:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CESI.HHZ. 2020-05-04T03:28:27.14 0.6 undecidable manual S 308 0.2797 101 0.08 47
IV.MF5.EHZ. 2020-05-04T03:28:26.09 0.6 undecidable manual S 50 0.2428 102 0.43 44
IV.MTRA.HNE. 2020-05-04T03:28:22.45 0.6 undecidable manual S 118 0.1592 109 -0.11 48
IV.MF5.EHZ. 2020-05-04T03:28:21.55 1.0 positive manual P 50 0.2428 102 -0.07 24
IV.CESI.HHZ. 2020-05-04T03:28:21.98 1.0 positive manual P 308 0.2797 101 -0.45 22
IV.MMO1.EHZ. 2020-05-04T03:28:20.61 0.6 undecidable manual S 53 0.1115 116 -0.25 47
IV.MTRA.HNE. 2020-05-04T03:28:20.01 0.3 undecidable manual P 118 0.1592 109 0.18 71
IV.NRCA.HHZ. 2020-05-04T03:28:19.51 0.6 undecidable manual S 271 0.0665 129 0.12 49
IV.MC2.EHZ. 2020-05-04T03:28:19.86 0.6 undecidable manual S 351 0.08 124 0.06 49
IV.MC2.EHZ. 2020-05-04T03:28:18.19 0.1 undecidable manual P 351 0.08 124 -0.05 99
IV.MMO1.EHZ. 2020-05-04T03:28:18.40 1.0 undecidable manual P 53 0.1115 116 -0.44 23
IV.NRCA.HHZ. 2020-05-04T03:28:17.98 0.1 negative manual P 271 0.0665 129 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0 0.00027254055 0.0992 AML other m 2020-05-04T03:28:19.89
IV.NRCA.HHN. ML:0 0.0002931493 0.1008 AML other m 2020-05-04T03:28:19.95
IV.NRCA.HNE. ML:0 0.0002420545 0.0992 AML other m 2020-05-04T03:28:19.84
IV.NRCA.HNN. ML:0 0.00027374335 0.1392 AML other m 2020-05-04T03:28:20.07
IV.MF5.EHE. ML:1.1 6.472432E-5 0.9008 AML other m 2020-05-04T03:28:28.14
IV.MF5.EHN. ML:1 6.249758E-5 1.4608 AML other m 2020-05-04T03:28:34.80
IV.CESI.HNE. ML:1.4 0.000119240364 0.6592 AML other m 2020-05-04T03:28:38.65
IV.CESI.HNN. ML:1.4 0.0001242211 0.6 AML other m 2020-05-04T03:28:24.47
IV.CESI.HHE. ML:0.5 1.59990745E-5 0.2016 AML other m 2020-05-04T03:28:28.11
IV.CESI.HHN. ML:0.9 3.2900505E-5 0.1392 AML other m 2020-05-04T03:28:27.76
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