Earthquake with magnitude of ML 1.9 on date 20-02-2020 and time 00:45:15 (Italy) in region Costa Marchigiana Anconetana (Ancona)

A magnitude ML 1.9 earthquake occured in region: Costa Marchigiana Anconetana (Ancona), on

  • 19-02-2020 23:45:15 (UTC)
  • 20-02-2020 00:45:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.76, 13.22 at 15 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
Senigallia AN 6 45027 45027
Mondolfo PU 10 14277 59304
San Costanzo PU 12 4786 64090
Trecastelli AN 14 7625 71715
Montemarciano AN 16 9992 81707
Monte Porzio PU 16 2836 84543
Ostra AN 18 6875 91418
Morro d'Alba AN 18 1903 93321
Fano PU 18 60888 154209
Monte San Vito AN 19 6848 161057
Corinaldo AN 19 4998 166055

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km E of Fano (60888 inhabitants)
29 Km NW of Ancona (100861 inhabitants)
30 Km SE of Pesaro (94582 inhabitants)
62 Km SE of Rimini (147750 inhabitants)
89 Km E of Cesena (96758 inhabitants)
99 Km NE of Foligno (57155 inhabitants)
99 Km NE of Perugia (166134 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 1.9 2020-02-19
23:45:15
43.77 13.22 15 2020-02-19
23:51:21
Sala Sismica INGV-Roma 76658841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-19 23:45:15 ± 0.35
Latitude 43.77 ± 0.02
Longitude 13.22 ± 0.02
Depth (km) 15 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76658841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2130
Semi-minor axis of confidence ellipse (meter) 889
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
Circular confidence region, given by single value of horizontal uncertainty (meter) 2130
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 230
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.46
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.73475
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 76658841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-19 23:51:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PTRJ.HHZ. 2020-02-19T23:46:18.64 3.0 undecidable manual Sn -4.45 0
IV.ATCC.EHZ. 2020-02-19T23:45:38.29 3.0 undecidable manual Sn -0.14 0
IV.FDMO.HHZ. 2020-02-19T23:45:33.63 3.0 undecidable manual S 188 0.7347 94 -6.56 0
IV.NARO.HHZ. 2020-02-19T23:45:32.88 0.1 undecidable manual S 252 0.4892 96 -0.04 92
IV.EL6.EHZ. 2020-02-19T23:45:32.17 0.3 undecidable manual S 191 0.4443 97 0.56 64
IV.BRSN.HNZ. 2020-02-19T23:45:31.34 3.0 positive manual Pn -0.32 0
IV.MNTT.EHZ. 2020-02-19T23:45:28.18 3.0 negative manual Pg 0.51 0
IV.FDMO.HHZ. 2020-02-19T23:45:28.95 0.1 undecidable manual P 188 0.7347 94 -0.98 64
IV.MPAG.EHZ. 2020-02-19T23:45:28.83 0.1 undecidable manual S 248 0.3615 99 -0.34 89
IV.MMO1.EHZ. 2020-02-19T23:45:28.58 3.0 undecidable manual Pn -0.77 0
IV.ARVD.HHZ. 2020-02-19T23:45:27.96 0.1 undecidable manual S 217 0.3354 100 -0.47 86
IV.MF5.EHZ. 2020-02-19T23:45:27.79 3.0 negative manual Pn -0.51 0
IV.CSP1.EHZ. 2020-02-19T23:45:26.35 3.0 undecidable manual P -0.39 0
IV.PE3.EHZ. 2020-02-19T23:45:26.76 3.0 undecidable manual Pg 1.24 0
IV.COR1.EHZ. 2020-02-19T23:45:25.36 0.1 undecidable manual S 230 0.2086 110 0.57 87
IV.EL6.EHZ. 2020-02-19T23:45:25.62 0.1 undecidable manual P 191 0.4443 97 0.63 81
IV.NARO.HHZ. 2020-02-19T23:45:25.55 0.1 undecidable manual P 252 0.4892 96 -0.19 89
IV.PESA.HHZ. 2020-02-19T23:45:23.41 0.1 undecidable manual P 303 0.3265 100 0.41 87
IV.MPAG.EHZ. 2020-02-19T23:45:23.36 0.1 undecidable manual P 248 0.3615 99 -0.21 91
IV.ARVD.HHZ. 2020-02-19T23:45:22.76 0.1 undecidable manual P 217 0.3354 100 -0.38 88
IV.COR1.EHZ. 2020-02-19T23:45:21.35 0.1 positive manual P 230 0.2086 110 0.31 92
IV.SENI.HNZ. 2020-02-19T23:45:21.35 0.1 undecidable manual S 173 0.0603 152 -0.02 100
IV.SENI.HNZ. 2020-02-19T23:45:19.19 0.1 undecidable manual P 173 0.0603 152 0.12 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SENI.HNN. ML:2.6 0.00405 0.26 AML other m 2020-02-19T23:45:21.74
IV.SENI.EHE. ML:1.7 0.000555 1.6 AML other m 2020-02-19T23:45:21.05
IV.SENI.HNE. ML:2.6 0.003785 0.18 AML other m 2020-02-19T23:45:21.86
IV.SENI.EHN. ML:1.9 0.000889 1.04 AML other m 2020-02-19T23:45:22.03
IV.COR1.EHN. ML:1.8 0.000345 0.14 AML other m 2020-02-19T23:45:25.54
IV.COR1.EHE. ML:1.2 9.75E-5 0.22 AML other m 2020-02-19T23:45:25.50
IV.PE3.EHN. ML:1.8 0.0001244 0.42 AML other m 2020-02-19T23:45:47.26
IV.PE3.EHE. ML:1.9 0.00015515 0.42 AML other m 2020-02-19T23:45:52.72
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