Earthquake with magnitude of ML 1.0 on date 08-04-2020 and time 04:10:44 (Italy) in region 4 km SW Sarnano (MC)

A magnitude ML 1.0 earthquake occured in region: 4 km SW Sarnano (MC), on

  • 08-04-2020 02:10:44 (UTC)
  • 08-04-2020 04:10:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.01, 13.28 at 27 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
Sarnano MC 4 3264 3264
Bolognola MC 4 142 3406
Amandola FM 7 3629 7035
Gualdo MC 8 815 7850
Acquacanina MC 9 121 7971
Montefortino FM 9 1178 9149
Fiastra MC 10 559 9708
Cessapalombo MC 11 512 10220
San Ginesio MC 12 3498 13718
Comunanza AP 13 3166 16884
Montemonaco AP 13 604 17488
Penna San Giovanni MC 13 1108 18596
Ussita MC 13 444 19040
Monte San Martino MC 14 765 19805
Smerillo FM 14 365 20170
Camporotondo di Fiastrone MC 14 563 20733
Sant'Angelo in Pontano MC 14 1436 22169
Montefalcone Appennino FM 15 424 22593
Caldarola MC 15 1823 24416
Fiordimonte MC 16 202 24618
Castelsantangelo sul Nera MC 16 281 24899
Pievebovigliana MC 17 866 25765
Ripe San Ginesio MC 17 852 26617
Visso MC 18 1107 27724
Belforte del Chienti MC 18 1886 29610
Santa Vittoria in Matenano FM 18 1330 30940
Force AP 18 1354 32294
Colmurano MC 19 1263 33557
Pieve Torina MC 19 1458 35015
Montegallo AP 19 523 35538
Palmiano AP 19 196 35734
Servigliano FM 19 2336 38070
Falerone FM 20 3337 41407

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km E of Foligno (57155 inhabitants)
52 Km NW of Teramo (54892 inhabitants)
71 Km S of Ancona (100861 inhabitants)
72 Km NE of Terni (111501 inhabitants)
73 Km E of Perugia (166134 inhabitants)
74 Km N of L'Aquila (69753 inhabitants)
90 Km NW of Montesilvano (53738 inhabitants)
95 Km S of Fano (60888 inhabitants)
98 Km NW of Pescara (121014 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 1.0 2020-04-08
02:10:44
43.01 13.28 27 2020-04-08
02:18:04
Sala Sismica INGV-Roma 78001281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-08 02:10:44 ± 0.17
Latitude 43.01 ± 0.01
Longitude 13.28 ± 0.01
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78001281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 639
Semi-minor axis of confidence ellipse (meter) 579
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 17
Circular confidence region, given by single value of horizontal uncertainty (meter) 640
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27249
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 78001281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-08 02:18:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CESI.HHZ. 2020-04-08T02:10:56.84 0.3 undecidable manual S 269 0.2725 126 0.28 69
IV.MC2.EHZ. 2020-04-08T02:10:53.64 1.0 undecidable manual S 214 0.1169 151 0.19 24
IV.FDMO.HHZ. 2020-04-08T02:10:53.65 0.3 undecidable manual S 281 0.1421 146 -0.19 73
IV.CSP1.EHZ. 2020-04-08T02:10:53.23 0.3 undecidable manual S 327 0.0989 155 0.02 76
IV.MF5.EHZ. 2020-04-08T02:10:53.97 0.3 undecidable manual S 99 0.1349 147 0.25 72
IV.MMO1.EHZ. 2020-04-08T02:10:53.32 0.3 undecidable manual S 162 0.1151 152 -0.11 74
IV.CESI.HHZ. 2020-04-08T02:10:51.48 0.3 negative manual P 269 0.2725 126 -0.02 74
IV.CSP1.EHZ. 2020-04-08T02:10:49.56 0.3 negative manual P 327 0.0989 155 0 76
IV.MF5.EHZ. 2020-04-08T02:10:49.84 0.1 positive manual P 99 0.1349 147 -0.02 100
IV.MMO1.EHZ. 2020-04-08T02:10:49.59 0.3 positive manual P 162 0.1151 152 -0.1 74
IV.MC2.EHZ. 2020-04-08T02:10:49.77 0.6 negative manual P 214 0.1169 151 0.06 50
IV.FDMO.HHZ. 2020-04-08T02:10:49.81 0.1 negative manual P 281 0.1421 146 -0.12 98
IV.NRCA.HHZ. 2020-04-08T02:10:48.58 3.0 undecidable manual P -2.01 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.8 3.45E-5 1.56 AML other m 2020-04-08T02:10:53.11
IV.FDMO.HHN. ML:0.8 3.495E-5 0.14 AML other m 2020-04-08T02:10:54.26
IV.CESI.HHE. ML:1 3.755E-5 1.52 AML other m 2020-04-08T02:10:56.14
IV.CESI.HHN. ML:1.3 7.45E-5 0.22 AML other m 2020-04-08T02:10:57.02
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