Earthquake with magnitude of ML 1.1 on date 24-02-2020 and time 12:16:01 (Italy) in region 8 km NW Arquata del Tronto (AP)

A magnitude ML 1.1 earthquake occured in region: 8 km NW Arquata del Tronto (AP), on

  • 24-02-2020 11:16:01 (UTC)
  • 24-02-2020 12:16:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.81, 13.22 at 10 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
Arquata del Tronto AP 8 1178 1178
Montegallo AP 10 523 1701
Norcia PG 10 4957 6658
Castelsantangelo sul Nera MC 11 281 6939
Accumoli RI 13 667 7606
Montemonaco AP 14 604 8210
Acquasanta Terme AP 16 2916 11126
Ussita MC 16 444 11570
Preci PG 17 724 12294
Visso MC 17 1107 13401
Montefortino FM 18 1178 14579
Cascia PG 19 3217 17796

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Teramo (54892 inhabitants)
45 Km E of Foligno (57155 inhabitants)
53 Km N of L'Aquila (69753 inhabitants)
54 Km NE of Terni (111501 inhabitants)
75 Km E of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
90 Km W of Pescara (121014 inhabitants)
93 Km NW of Chieti (51815 inhabitants)
93 Km S of Ancona (100861 inhabitants)
99 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km NE of Tivoli (56533 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 1.1 2020-02-24
11:16:01
42.81 13.22 10 2020-02-24
11:25:11
Sala Sismica INGV-Roma 76771521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-24 11:16:01 ± 0.04
Latitude 42.81 ± 0.00
Longitude 13.22 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76771521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 256
Semi-minor axis of confidence ellipse (meter) 153
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 27
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) 0.33904
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 25
Type of magnitude ML
Reference to an origin 76771521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-24 11:25:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-02-24T11:16:14.66 0.1 undecidable manual S 123 0.339 50 -0.03 96
IV.RM33.EHZ. 2020-02-24T11:16:13.48 0.3 undecidable manual S 180 0.3004 50 -0.05 72
IV.CSP1.EHZ. 2020-02-24T11:16:12.92 0.1 undecidable manual S 358 0.2824 50 -0.09 95
IV.GAVE.HNE. 2020-02-24T11:16:12.56 0.1 undecidable manual S 244 0.2644 50 0.08 97
IV.FDMO.HHZ. 2020-02-24T11:16:11.86 0.3 undecidable manual S 337 0.2464 109 -0.05 73
IT.MTCL.HGZ. 2020-02-24T11:16:11.55 0.3 undecidable manual S 319 0.2437 110 -0.28 70
IV.SMA1.EHZ. 2020-02-24T11:16:10.18 0.3 undecidable manual S 154 0.1988 114 -0.01 74
IV.FEMA.HNZ. 2020-02-24T11:16:10.22 0.1 undecidable manual S 321 0.1961 114 0.11 97
IV.TERO.HHZ. 2020-02-24T11:16:09.13 0.3 undecidable manual P 123 0.339 50 -0.14 70
IV.MTRA.EHZ. 2020-02-24T11:16:08.25 0.3 undecidable manual S 112 0.1412 121 0.01 75
IV.RM33.EHZ. 2020-02-24T11:16:08.28 0.3 undecidable manual P 180 0.3004 50 -0.31 68
IV.CSP1.EHZ. 2020-02-24T11:16:08.24 0.1 undecidable manual P 358 0.2824 50 -0.05 96
IV.CESI.HHZ. 2020-02-24T11:16:08.67 0.3 undecidable manual P 311 0.3013 50 0.06 72
IV.GUMA.HHZ. 2020-02-24T11:16:08.31 0.3 undecidable manual P 19 0.2671 50 0.27 70
IV.MF5.EHZ. 2020-02-24T11:16:08.16 0.3 undecidable manual P 45 0.2518 50 0.4 68
IV.GAVE.HNE. 2020-02-24T11:16:08.03 0.1 undecidable manual P 244 0.2644 50 0.05 97
IV.MC2.EHZ. 2020-02-24T11:16:07.11 0.3 undecidable manual S 348 0.1043 130 0.04 75
IV.FDMO.HHZ. 2020-02-24T11:16:07.84 0.3 undecidable manual P 337 0.2464 109 0.18 71
IV.MMO1.EHZ. 2020-02-24T11:16:07.24 0.1 undecidable manual S 42 0.1205 126 -0.33 94
IT.MTCL.HGZ. 2020-02-24T11:16:07.45 0.3 undecidable manual P 319 0.2437 110 -0.16 71
IV.FEMA.HNZ. 2020-02-24T11:16:06.60 0.3 undecidable manual P 321 0.1961 114 -0.02 74
IV.NRCA.HHZ. 2020-02-24T11:16:06.28 0.1 undecidable manual S 288 0.0791 137 -0.1 100
IV.SMA1.EHZ. 2020-02-24T11:16:06.67 0.3 undecidable manual P 154 0.1988 114 0.01 74
IV.MMO1.EHZ. 2020-02-24T11:16:05.17 0.1 positive manual P 42 0.1205 126 0.02 100
IV.MTRA.EHZ. 2020-02-24T11:16:05.75 0.3 undecidable manual P 112 0.1412 121 0.21 72
IV.MC2.EHZ. 2020-02-24T11:16:05.07 0.6 negative manual P 348 0.1043 130 0.21 48
IV.NRCA.HHZ. 2020-02-24T11:16:04.59 0.1 undecidable manual P 288 0.0791 137 0.12 99
IV.T1299.EHZ. 2020-02-24T11:16:02.98 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.6 0.0005139927 0.0768 AML other m 2020-02-24T11:16:06.52
IV.NRCA.HHN. ML:1.8 0.0010424627 0.16 AML other m 2020-02-24T11:16:06.39
IV.NRCA.HNE. ML:1.5 0.0004897629 0.0832 AML other m 2020-02-24T11:16:06.58
IV.NRCA.HNN. ML:1.8 0.00099822025 0.16 AML other m 2020-02-24T11:16:06.40
IV.MTRA.EHE. ML:1.3 0.00018245095 0.1408 AML other m 2020-02-24T11:16:08.90
IV.MTRA.EHN. ML:1.5 0.00028811735 0.1792 AML other m 2020-02-24T11:16:08.79
IV.MTRA.HNE. ML:1.3 0.00017283985 0.1408 AML other m 2020-02-24T11:16:08.98
IV.MTRA.HNN. ML:1.5 0.00026941815 0.1664 AML other m 2020-02-24T11:16:08.80
IV.SMA1.EHE. ML:0.8 3.9573985E-5 0.384 AML other m 2020-02-24T11:16:17.09
IV.SMA1.EHN. ML:0.7 3.582688E-5 0.6656 AML other m 2020-02-24T11:16:18.80
IV.FDMO.HHE. ML:0.8 2.796513E-5 0.16 AML other m 2020-02-24T11:16:12.01
IV.FDMO.HHN. ML:0.9 4.191781E-5 0.256 AML other m 2020-02-24T11:16:11.00
IV.MF5.EHE. ML:0.7 2.727112E-5 0.32 AML other m 2020-02-24T11:16:14.02
IV.MF5.EHN. ML:0.9 3.7993215E-5 0.4608 AML other m 2020-02-24T11:16:17.03
IV.CSP1.EHE. ML:0.9 4.00515655E-5 0.096 AML other m 2020-02-24T11:16:14.32
IV.CSP1.EHN. ML:1 4.878354E-5 0.2752 AML other m 2020-02-24T11:16:13.79
IV.RM33.HNE. ML:1.6 0.0001850459 0.7296 AML other m 2020-02-24T11:16:13.33
IV.RM33.EHE. ML:0.9 3.7245915E-5 0.2624 AML other m 2020-02-24T11:16:14.99
IV.RM33.EHN. ML:0.9 3.566875E-5 0.1152 AML other m 2020-02-24T11:16:14.01
IV.GUMA.HHE. ML:1.4 0.00010880139 0.3008 AML other m 2020-02-24T11:16:14.31
IV.GUMA.HHN. ML:1.1 6.6453735E-5 0.1408 AML other m 2020-02-24T11:16:18.29
IV.CESI.HHE. ML:0.8 2.254868E-5 0.1408 AML other m 2020-02-24T11:16:14.20
IV.CESI.HHN. ML:1.1 5.0805055E-5 0.1792 AML other m 2020-02-24T11:16:14.11
IV.TERO.HHE. ML:1 3.2789575E-5 0.1152 AML other m 2020-02-24T11:16:14.94
IV.TERO.HHN. ML:1 3.969555E-5 0.1408 AML other m 2020-02-24T11:16:14.69
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