Earthquake with magnitude of ML 1.6 on date 18-02-2020 and time 20:26:12 (UTC) in region 1 km NE Acquacanina (MC)

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

  • 18-02-2020 20:26:12 (UTC)
  • 18-02-2020 21:26:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.03, 13.18 at 29 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 2 559 680
Bolognola MC 6 142 822
Fiordimonte MC 8 202 1024
Pievebovigliana MC 9 866 1890
Sarnano MC 10 3264 5154
Cessapalombo MC 11 512 5666
Ussita MC 11 444 6110
Pieve Torina MC 11 1458 7568
Caldarola MC 12 1823 9391
Muccia MC 12 915 10306
Camporotondo di Fiastrone MC 13 563 10869
Gualdo MC 13 815 11684
Visso MC 14 1107 12791
San Ginesio MC 14 3498 16289
Camerino MC 15 6974 23263
Monte Cavallo MC 15 145 23408
Belforte del Chienti MC 15 1886 25294
Amandola FM 15 3629 28923
Castelsantangelo sul Nera MC 16 281 29204
Serrapetrona MC 16 966 30170
Montefortino FM 17 1178 31348
Sant'Angelo in Pontano MC 19 1436 32784
Montemonaco AP 19 604 33388
Serravalle di Chienti MC 19 1070 34458
Ripe San Ginesio MC 19 852 35310
Penna San Giovanni MC 20 1108 36418

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
60 Km NW of Teramo (54892 inhabitants)
65 Km E of Perugia (166134 inhabitants)
68 Km NE of Terni (111501 inhabitants)
70 Km SW of Ancona (100861 inhabitants)
78 Km N of L'Aquila (69753 inhabitants)
91 Km S of Fano (60888 inhabitants)
98 Km NW of Montesilvano (53738 inhabitants)
100 Km S of Pesaro (94582 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
20:26:12
43.03 13.18 29 2020-02-18
20:30:04
Sala Sismica INGV-Roma 76634561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-18 20:26:12 ± 0.22
Latitude 43.03 ± 0.01
Longitude 13.18 ± 0.01
Depth (km) 29 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76634561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 839
Semi-minor axis of confidence ellipse (meter) 195
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 340
Circular confidence region, given by single value of horizontal uncertainty (meter) 840
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.5315
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 76634561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-18 20:30:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HHZ. 2020-02-18T20:26:32.18 1.0 undecidable manual S 296 0.5315 110 1.06 16
IV.RM33.EHZ. 2020-02-18T20:26:31.82 0.6 undecidable manual S 177 0.5252 111 0.85 37
IV.MNTT.EHZ. 2020-02-18T20:26:26.73 0.6 undecidable manual S 85 0.3031 125 1.61 27
IV.EL6.EHZ. 2020-02-18T20:26:25.26 0.6 undecidable manual S 349 0.3004 126 0.21 48
IV.MURB.HHZ. 2020-02-18T20:26:23.59 0.1 undecidable manual P 296 0.5315 110 0.52 83
IV.MF5.EHZ. 2020-02-18T20:26:23.20 0.6 undecidable manual S 103 0.2077 137 0.21 49
IV.TERO.HHZ. 2020-02-18T20:26:23.01 3.0 undecidable manual P 0.15 0
IV.NRCA.HHZ. 2020-02-18T20:26:23.20 0.6 undecidable manual S 194 0.2068 137 0.24 48
IV.CESI.HHZ. 2020-02-18T20:26:23.10 0.6 undecidable manual S 262 0.205 138 0.18 49
IV.RM33.EHZ. 2020-02-18T20:26:22.82 1.0 positive manual P 177 0.5252 111 -0.16 23
IV.SAP2.EHZ. 2020-02-18T20:26:22.47 0.6 undecidable manual S 68 0.17 143 0.19 49
IV.SSFR.HHZ. 2020-02-18T20:26:22.54 3.0 undecidable manual P -0.08 0
IV.MMO1.EHZ. 2020-02-18T20:26:21.97 0.6 undecidable manual S 142 0.1718 143 -0.33 47
IV.GUMA.HHZ. 2020-02-18T20:26:21.89 0.6 undecidable manual S 76 0.1151 154 0.47 47
IV.MC2.EHZ. 2020-02-18T20:26:21.63 0.6 undecidable manual S 178 0.1232 152 0.11 51
IV.GAVE.EHZ. 2020-02-18T20:26:21.42 0.6 positive manual P 212 0.402 117 0.38 45
IV.SMA1.EHZ. 2020-02-18T20:26:20.91 3.0 undecidable manual P -0.41 0
IV.CSP1.EHZ. 2020-02-18T20:26:20.71 0.6 undecidable manual S 16 0.0603 166 -0.13 51
IV.MNTT.EHZ. 2020-02-18T20:26:19.66 0.6 positive manual P 85 0.3031 125 0.05 49
IV.EL6.EHZ. 2020-02-18T20:26:19.28 0.3 positive manual P 349 0.3004 126 -0.28 71
IV.NRCA.HHZ. 2020-02-18T20:26:18.07 0.1 positive manual P 194 0.2068 137 -0.29 96
IV.CESI.HHZ. 2020-02-18T20:26:18.18 0.1 positive manual P 262 0.205 138 -0.16 99
IV.MF5.EHZ. 2020-02-18T20:26:18.20 0.1 negative manual P 103 0.2077 137 -0.17 98
IV.GUMA.HHZ. 2020-02-18T20:26:17.23 0.1 negative manual P 76 0.1151 154 -0.24 98
IV.MC2.EHZ. 2020-02-18T20:26:17.36 0.1 positive manual P 178 0.1232 152 -0.17 100
IV.MMO1.EHZ. 2020-02-18T20:26:17.57 0.1 positive manual P 142 0.1718 143 -0.4 94
IV.SAP2.EHZ. 2020-02-18T20:26:17.77 0.3 positive manual P 68 0.17 143 -0.19 74
IV.CSP1.EHZ. 2020-02-18T20:26:16.80 0.1 positive manual P 16 0.0603 166 -0.34 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:1.5 0.0001545 1.48 AML other m 2020-02-18T20:26:21.21
IV.CSP1.EHE. ML:1.6 0.000192 0.32 AML other m 2020-02-18T20:26:21.59
IV.GUMA.HHN. ML:2 0.0004605 0.22 AML other m 2020-02-18T20:26:21.72
IV.GUMA.HHE. ML:1.9 0.000354 1.02 AML other m 2020-02-18T20:26:22.87
IV.CESI.HHN. ML:1.8 0.00025 0.14 AML other m 2020-02-18T20:26:23.31
IV.NRCA.HHE. ML:1.5 0.0001345 0.12 AML other m 2020-02-18T20:26:23.42
IV.SAP2.EHE. ML:1.6 0.0001615 0.18 AML other m 2020-02-18T20:26:23.63
IV.CESI.HHE. ML:1.6 0.000165 0.72 AML other m 2020-02-18T20:26:23.31
IV.SAP2.EHN. ML:2.2 0.000753 0.72 AML other m 2020-02-18T20:26:24.57
IV.NRCA.HHN. ML:1.4 0.000102 0.12 AML other m 2020-02-18T20:26:24.65
IV.EL6.EHN. ML:1.6 0.0001415 0.94 AML other m 2020-02-18T20:26:26.64
IV.EL6.EHE. ML:1.6 0.0001225 0.5 AML other m 2020-02-18T20:26:26.53
IV.SMA1.EHE. ML:1.4 5.98E-5 0.24 AML other m 2020-02-18T20:26:28.49
IV.SMA1.EHN. ML:1.3 5.165E-5 0.3 AML other m 2020-02-18T20:26:28.48
IV.GAVE.EHN. ML:1.3 4.68E-5 0.6 AML other m 2020-02-18T20:26:29.99
IV.SSFR.HHN. ML:1.6 8.925E-5 0.26 AML other m 2020-02-18T20:26:31.19
IV.SSFR.HHE. ML:1.6 7.325E-5 0.84 AML other m 2020-02-18T20:26:31.03
IV.GAVE.EHE. ML:1.4 5.455E-5 0.26 AML other m 2020-02-18T20:26:32.74
IV.MURB.HHE. ML:1.8 0.0001205 0.2 AML other m 2020-02-18T20:26:33.06
IV.MURB.HHN. ML:1.8 0.00011415 0.22 AML other m 2020-02-18T20:26:33.10
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