Earthquake with magnitude of ML 1.2 on date 22-08-2019 and time 13:20:25 (Italy) in region 5 km SE Castelsantangelo sul Nera (MC)

A magnitude ML 1.2 earthquake occured in region: 5 km SE Castelsantangelo sul Nera (MC), on

  • 22-08-2019 11:20:25 (UTC)
  • 22-08-2019 13:20:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.86, 13.2 at 7 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
Castelsantangelo sul Nera MC 5 281 281
Ussita MC 11 444 725
Norcia PG 11 4957 5682
Montegallo AP 12 523 6205
Visso MC 12 1107 7312
Montemonaco AP 12 604 7916
Preci PG 13 724 8640
Arquata del Tronto AP 13 1178 9818
Montefortino FM 15 1178 10996
Bolognola MC 15 142 11138
Accumoli RI 19 667 11805
Amandola FM 19 3629 15434
Acquacanina MC 19 121 15555
Fiastra MC 20 559 16114

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
47 Km W of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
59 Km N of L'Aquila (69753 inhabitants)
71 Km E of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
94 Km W of Pescara (121014 inhabitants)
98 Km NW of Chieti (51815 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 1.2 2019-08-22
11:20:25
42.86 13.19 7 2019-08-22
11:24:43
Sala Sismica INGV-Roma 71697761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-22 11:20:25 ± 0.1
Latitude 42.86 ± 0.00
Longitude 13.19 ± 0.01
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71697761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 493
Semi-minor axis of confidence ellipse (meter) 424
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 490
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 180
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.47394
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 71697761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-22 11:24:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2019-08-22T11:20:43.02 0.3 undecidable manual S 352 0.4739 50 0.25 68
IV.ATCC.EHZ. 2019-08-22T11:20:37.44 3.0 undecidable manual P 0.66 0
IV.EL6.EHZ. 2019-08-22T11:20:35.02 0.3 undecidable manual P 352 0.4739 50 -0.37 66
IV.SMA1.EHZ. 2019-08-22T11:20:35.34 0.1 undecidable manual S 156 0.2518 104 0.06 98
IV.CSP1.EHZ. 2019-08-22T11:20:34.43 0.1 undecidable manual S 2 0.232 105 -0.11 97
IV.MF5.EHZ. 2019-08-22T11:20:34.90 0.1 undecidable manual S 57 0.232 105 0.34 93
IV.FDMO.HHZ. 2019-08-22T11:20:33.07 0.1 undecidable manual S 336 0.1934 107 -0.03 100
IV.MTRA.EHZ. 2019-08-22T11:20:32.73 0.1 undecidable manual S 125 0.1808 109 0.08 99
IV.MF5.EHZ. 2019-08-22T11:20:30.86 0.1 undecidable manual P 57 0.232 105 0.21 95
IV.SMA1.EHZ. 2019-08-22T11:20:30.87 0.1 undecidable manual P 156 0.2518 104 -0.2 95
IV.CSP1.EHZ. 2019-08-22T11:20:30.46 0.1 undecidable manual P 2 0.232 105 -0.18 96
IV.MTRA.EHZ. 2019-08-22T11:20:29.67 0.1 undecidable manual P 125 0.1808 109 0.12 98
IV.FDMO.HHZ. 2019-08-22T11:20:29.90 0.6 positive manual P 336 0.1934 107 0.09 49
IV.MMO1.EHZ. 2019-08-22T11:20:29.44 0.1 undecidable manual S 68 0.1043 120 -0.52 91
IV.MC2.EHZ. 2019-08-22T11:20:28.53 0.1 undecidable manual S 355 0.0513 140 0.15 100
IV.MMO1.EHZ. 2019-08-22T11:20:27.90 0.1 positive manual P 68 0.1043 120 -0.1 100
IV.MC2.EHZ. 2019-08-22T11:20:27.25 0.1 undecidable manual P 355 0.0513 140 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.8 4.805E-5 0.66 AML other m 2019-08-22T11:20:33.55
IV.FDMO.HHN. ML:0.8 4.93E-5 0.74 AML other m 2019-08-22T11:20:33.62
IV.MTRA.EHE. ML:1.2 0.000133 0.2 AML other m 2019-08-22T11:20:34.48
IV.MTRA.EHN. ML:1.1 0.00010725 0.4 AML other m 2019-08-22T11:20:34.69
IV.ATCC.EHE. ML:1.6 9.235E-5 0.36 AML other m 2019-08-22T11:20:39.38
IV.ATCC.EHN. ML:1.7 0.0001085 0.72 AML other m 2019-08-22T11:20:39.81
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