Earthquake with magnitude of ML 1.6 on date 18-02-2020 and time 19:23:30 (Italy) in region 1 km E Acquacanina (MC)

A magnitude ML 1.6 earthquake occured in region: 1 km E Acquacanina (MC), on

  • 18-02-2020 18:23:30 (UTC)
  • 18-02-2020 19:23:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.03, 13.19 at 31 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
Acquacanina MC 1 121 121
Fiastra MC 3 559 680
Bolognola MC 5 142 822
Fiordimonte MC 8 202 1024
Pievebovigliana MC 9 866 1890
Sarnano MC 9 3264 5154
Ussita MC 10 444 5598
Cessapalombo MC 11 512 6110
Pieve Torina MC 11 1458 7568
Caldarola MC 13 1823 9391
Muccia MC 13 915 10306
Gualdo MC 13 815 11121
Camporotondo di Fiastrone MC 13 563 11684
Visso MC 13 1107 12791
San Ginesio MC 14 3498 16289
Amandola FM 15 3629 19918
Castelsantangelo sul Nera MC 15 281 20199
Camerino MC 15 6974 27173
Monte Cavallo MC 16 145 27318
Montefortino FM 16 1178 28496
Belforte del Chienti MC 16 1886 30382
Serrapetrona MC 17 966 31348
Montemonaco AP 18 604 31952
Sant'Angelo in Pontano MC 19 1436 33388
Ripe San Ginesio MC 20 852 34240
Penna San Giovanni MC 20 1108 35348
Serravalle di Chienti MC 20 1070 36418

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
59 Km NW of Teramo (54892 inhabitants)
65 Km E of Perugia (166134 inhabitants)
68 Km NE of Terni (111501 inhabitants)
71 Km SW of Ancona (100861 inhabitants)
77 Km N of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 inhabitants)
97 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 1.6 2020-02-18
18:23:30
43.03 13.19 31 2020-02-18
18:30:23
Sala Sismica INGV-Roma 76633741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-18 18:23:30 ± 0.15
Latitude 43.03 ± 0.00
Longitude 13.19 ± 0.01
Depth (km) 31 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76633741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 540
Semi-minor axis of confidence ellipse (meter) 276
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30757
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 76633741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-18 18:30:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PE3.EHZ. 2020-02-18T18:23:59.50 3.0 undecidable manual S 0.23 0
IV.RMP.HHZ. 2020-02-18T18:23:53.20 3.0 undecidable manual Pn 0.11 0
IV.SNTG.HHZ. 2020-02-18T18:23:44.10 0.6 undecidable manual S 322 0.2896 130 0.11 47
IV.EL6.EHZ. 2020-02-18T18:23:44.56 0.6 undecidable manual S 348 0.3076 128 0.16 47
IV.TERO.HHZ. 2020-02-18T18:23:42.11 3.0 undecidable manual P -0.28 0
IV.MF5.EHZ. 2020-02-18T18:23:42.75 0.6 undecidable manual S 101 0.2032 141 0.57 43
IV.MURB.HHZ. 2020-02-18T18:23:42.52 3.0 negative manual P -0.17 0
IV.NRCA.HHZ. 2020-02-18T18:23:42.10 0.6 undecidable manual S 195 0.2014 141 -0.06 49
IV.SSFR.HHZ. 2020-02-18T18:23:42.18 3.0 positive manual P 0.1 0
IV.CESI.HHZ. 2020-02-18T18:23:42.48 0.6 undecidable manual S 264 0.2077 140 0.2 47
IV.SAP2.EHZ. 2020-02-18T18:23:41.57 0.6 undecidable manual S 66 0.1691 146 -0.01 50
IV.RM33.EHZ. 2020-02-18T18:23:41.87 3.0 negative manual P -0.69 0
IV.MMO1.EHZ. 2020-02-18T18:23:41.36 0.6 undecidable manual S 142 0.1646 147 -0.14 48
IV.MC2.EHZ. 2020-02-18T18:23:40.97 0.6 undecidable manual S 179 0.1169 155 0.15 49
IV.ATCC.EHZ. 2020-02-18T18:23:40.54 3.0 undecidable manual P -0.28 0
IV.SMA1.EHZ. 2020-02-18T18:23:40.19 3.0 undecidable manual P -0.54 0
IV.GAVE.EHZ. 2020-02-18T18:23:40.65 3.0 negative manual P 0.22 0
IV.FOSV.EHZ. 2020-02-18T18:23:40.19 3.0 positive manual P -0.28 0
IV.CSP1.EHZ. 2020-02-18T18:23:39.97 0.6 undecidable manual S 11 0.0648 166 -0.33 47
IV.EL6.EHZ. 2020-02-18T18:23:38.58 0.3 positive manual P 348 0.3076 128 -0.12 71
IV.MNTT.EHZ. 2020-02-18T18:23:38.95 3.0 undecidable manual P 0.07 0
IV.SNTG.HHZ. 2020-02-18T18:23:38.50 0.6 negative manual P 322 0.2896 130 0.04 48
IV.NRCA.HHZ. 2020-02-18T18:23:37.37 0.1 positive manual P 195 0.2014 141 -0.03 98
IV.CESI.HHZ. 2020-02-18T18:23:37.47 0.1 positive manual P 264 0.2077 140 0 98
IV.MF5.EHZ. 2020-02-18T18:23:37.50 0.1 negative manual P 101 0.2032 141 0.09 97
IV.SAP2.EHZ. 2020-02-18T18:23:37.06 0.6 positive manual P 66 0.1691 146 0 50
IV.CSP1.EHZ. 2020-02-18T18:23:36.09 0.1 positive manual P 11 0.0648 166 -0.23 97
IV.MMO1.EHZ. 2020-02-18T18:23:36.96 0.1 undecidable manual P 142 0.1646 147 -0.06 98
IV.MC2.EHZ. 2020-02-18T18:23:36.65 0.1 positive manual P 179 0.1169 155 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:1.5 0.0001635 0.52 AML other m 2020-02-18T18:23:40.50
IV.CSP1.EHE. ML:1.6 0.000194 0.32 AML other m 2020-02-18T18:23:40.88
IV.SAP2.EHN. ML:2.3 0.0007505 1.24 AML other m 2020-02-18T18:23:41.26
IV.CESI.HHE. ML:1.7 0.000178 0.12 AML other m 2020-02-18T18:23:42.60
IV.SAP2.EHE. ML:1.6 0.0001715 0.42 AML other m 2020-02-18T18:23:42.62
IV.CESI.HHN. ML:1.8 0.0002565 0.16 AML other m 2020-02-18T18:23:42.60
IV.NRCA.HHE. ML:1.6 0.0001355 0.72 AML other m 2020-02-18T18:23:42.71
IV.NRCA.HHN. ML:1.4 9.87E-5 1.88 AML other m 2020-02-18T18:23:44.00
IV.EL6.EHE. ML:1.6 0.0001262 0.44 AML other m 2020-02-18T18:23:45.07
IV.MNTT.EHN. ML:1.9 0.000242 0.62 AML other m 2020-02-18T18:23:46.69
IV.EL6.EHN. ML:1.6 0.00012935 0.36 AML other m 2020-02-18T18:23:46.63
IV.MNTT.EHE. ML:1.8 0.0001945 0.18 AML other m 2020-02-18T18:23:47.25
IV.FOSV.EHE. ML:1.8 0.0001329 0.32 AML other m 2020-02-18T18:23:47.48
IV.FOSV.EHN. ML:1.9 0.000191 0.24 AML other m 2020-02-18T18:23:47.53
IV.SMA1.EHE. ML:1.4 6.155E-5 0.24 AML other m 2020-02-18T18:23:47.78
IV.SMA1.EHN. ML:1.4 5.705E-5 0.3 AML other m 2020-02-18T18:23:47.92
IV.ATCC.EHE. ML:1.6 8.715E-5 0.6 AML other m 2020-02-18T18:23:48.59
IV.ATCC.EHN. ML:1.4 5.685E-5 0.12 AML other m 2020-02-18T18:23:48.41
IV.GAVE.EHN. ML:1.3 4.64E-5 0.68 AML other m 2020-02-18T18:23:49.28
IV.SSFR.HHE. ML:1.6 7.45E-5 0.84 AML other m 2020-02-18T18:23:50.74
IV.SSFR.HHN. ML:1.7 0.00010245 0.78 AML other m 2020-02-18T18:23:50.47
IV.RM33.EHE. ML:1.1 2.495E-5 0.44 AML other m 2020-02-18T18:23:51.87
IV.GAVE.EHE. ML:1.4 5.84E-5 1.72 AML other m 2020-02-18T18:23:52.90
IV.MURB.HHE. ML:1.9 0.0001325 0.2 AML other m 2020-02-18T18:23:52.45
IV.MURB.HHN. ML:1.9 0.000131 0.22 AML other m 2020-02-18T18:23:52.39
IV.TERO.HHE. ML:1 2.09E-5 0.64 AML other m 2020-02-18T18:23:52.83
IV.TERO.HHN. ML:1.1 2.325E-5 0.52 AML other m 2020-02-18T18:23:54.48
IV.RM33.EHN. ML:1.1 2.315E-5 0.88 AML other m 2020-02-18T18:23:58.68
IV.RMP.HHN. ML:2.8 0.000355 0.42 AML other m 2020-02-18T18:24:33.23
IV.RMP.HHE. ML:2.9 0.0004195 1 AML other m 2020-02-18T18:24:35.69
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