Earthquake with magnitude of ML 0.9 on date 20-09-2019 and time 02:08:35 (Italy) in region 2 km NE Montegallo (AP)

A magnitude ML 0.9 earthquake occured in region: 2 km NE Montegallo (AP), on

  • 20-09-2019 00:08:35 (UTC)
  • 20-09-2019 02:08:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.86, 13.35 at 24 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
Montegallo AP 3 523 523
Montemonaco AP 5 604 1127
Montefortino FM 9 1178 2305
Palmiano AP 10 196 2501
Roccafluvione AP 10 2010 4511
Arquata del Tronto AP 11 1178 5689
Acquasanta Terme AP 11 2916 8605
Venarotta AP 12 2066 10671
Comunanza AP 12 3166 13837
Amandola FM 13 3629 17466
Force AP 16 1354 18820
Castelsantangelo sul Nera MC 17 281 19101
Montefalcone Appennino FM 17 424 19525
Smerillo FM 18 365 19890
Bolognola MC 18 142 20032
Valle Castellana TE 18 977 21009
Ascoli Piceno AP 18 49407 70416
Ussita MC 20 444 70860
Sarnano MC 20 3264 74124

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of Teramo (54892 inhabitants)
54 Km E of Foligno (57155 inhabitants)
57 Km N of L'Aquila (69753 inhabitants)
67 Km NE of Terni (111501 inhabitants)
76 Km NW of Montesilvano (53738 inhabitants)
83 Km E of Perugia (166134 inhabitants)
83 Km NW of Pescara (121014 inhabitants)
85 Km S of Ancona (100861 inhabitants)
88 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 0.9 2019-09-20
00:08:35
42.86 13.35 24 2019-09-20
00:20:49
Sala Sismica INGV-Roma 72574111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-20 00:08:35 ± 0.19
Latitude 42.86 ± 0.00
Longitude 13.35 ± 0.01
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72574111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 629
Semi-minor axis of confidence ellipse (meter) 108
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30127
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 72574111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-20 00:20:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
SI.ROSI.HHZ. 2019-09-20T00:10:25.56 3.0 undecidable manual Sn -2.1 0
IV.SPS2.HHZ. 2019-09-20T00:10:07.38 3.0 undecidable manual Sn 0.81 0
IV.MILN.HNZ. 2019-09-20T00:09:45.05 3.0 undecidable manual Pg 12.58 0
IV.RIBO.EHZ.01 2019-09-20T00:09:36.73 3.0 undecidable manual Sg 5.76 0
IX.STN3.HHZ.02 2019-09-20T00:09:34.12 3.0 undecidable manual Sn 0.41 0
IT.FIE.HGZ. 2019-09-20T00:09:31.55 3.0 undecidable manual Sn -0.74 0
IV.CDRU.HHZ. 2019-09-20T00:09:24.92 3.0 undecidable manual Sn -7.17 0
IV.TERO.HHZ. 2019-09-20T00:08:48.37 0.1 undecidable manual S 142 0.3013 118 0.24 93
IV.CSP1.EHZ. 2019-09-20T00:08:46.92 0.1 undecidable manual S 335 0.2545 124 -0.01 99
IV.SMA1.EHE. 2019-09-20T00:08:46.38 0.6 undecidable manual S 183 0.2311 127 0.02 50
IV.T1299.EHE. 2019-09-20T00:08:46.84 0.1 undecidable manual S 193 0.232 126 0.44 91
IV.GUMA.HHE. 2019-09-20T00:08:45.95 0.1 undecidable manual S 356 0.2014 131 0.26 94
IV.NRCA.HHZ. 2019-09-20T00:08:45.06 0.1 undecidable manual S 261 0.1763 135 -0.08 98
IV.POFI.HNZ. 2019-09-20T00:08:44.35 3.0 undecidable manual P -0.7 0
IV.MC2.EHZ. 2019-09-20T00:08:44.44 0.1 undecidable manual S 293 0.1295 145 0.19 97
IV.MF5.EHE. 2019-09-20T00:08:44.78 0.1 undecidable manual S 32 0.1493 141 0.18 96
IV.MTRA.EHE. 2019-09-20T00:08:43.57 0.1 undecidable manual S 163 0.1097 149 -0.35 95
IV.T1299.EHE. 2019-09-20T00:08:42.06 0.1 undecidable manual P 193 0.232 126 0.12 97
IV.MMO1.EHZ. 2019-09-20T00:08:42.77 0.1 undecidable manual S 334 0.0423 167 -0.41 95
IV.CSP1.EHZ. 2019-09-20T00:08:42.09 0.6 negative manual P 335 0.2545 124 -0.16 48
IV.TERO.HHZ. 2019-09-20T00:08:42.93 0.6 undecidable manual P 142 0.3013 118 0 49
IV.GUMA.HHE. 2019-09-20T00:08:41.51 0.1 undecidable manual P 356 0.2014 131 -0.02 100
IV.NRCA.HHZ. 2019-09-20T00:08:41.14 1.0 undecidable manual P 261 0.1763 135 -0.07 25
IV.SMA1.EHE. 2019-09-20T00:08:41.84 0.3 undecidable manual P 183 0.2311 127 -0.07 73
IV.MC2.EHZ. 2019-09-20T00:08:40.73 1.0 undecidable manual P 293 0.1295 145 0.04 25
IV.MF5.EHE. 2019-09-20T00:08:40.93 0.1 undecidable manual P 32 0.1493 141 0.03 100
IV.MTRA.EHE. 2019-09-20T00:08:40.36 0.1 undecidable manual P 163 0.1097 149 -0.14 99
IV.MMO1.EHZ. 2019-09-20T00:08:39.82 0.3 undecidable manual P 334 0.0423 167 -0.26 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.2 7.2086805E-5 0.1 AML other m 2019-09-20T00:08:45.27
IV.NRCA.HHN. ML:1 5.657577E-5 0.08 AML other m 2019-09-20T00:08:45.59
IV.NRCA.HNE. ML:1.1 6.3874235E-5 0.13 AML other m 2019-09-20T00:08:46.38
IV.CSP1.EHN. ML:0.7 2.1883675E-5 0.12 AML other m 2019-09-20T00:08:47.13
IV.TERO.HHN. ML:0.6 1.720675E-5 0.86 AML other m 2019-09-20T00:08:45.35
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