Earthquake with magnitude of ML 1.1 on date 24-09-2019 and time 12:38:58 (Italy) in region 8 km E Accumoli (RI)

A magnitude ML 1.1 earthquake occured in region: 8 km E Accumoli (RI), on

  • 24-09-2019 10:38:58 (UTC)
  • 24-09-2019 12:38:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.69, 13.35 at 12 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
Accumoli RI 8 667 667
Amatrice RI 8 2657 3324
Acquasanta Terme AP 10 2916 6240
Arquata del Tronto AP 10 1178 7418
Valle Castellana TE 13 977 8395
Rocca Santa Maria TE 15 537 8932
Campotosto AQ 15 542 9474
Cortino TE 15 656 10130
Montegallo AP 17 523 10653
Cittareale RI 17 482 11135
Crognaleto TE 19 1297 12432
Capitignano AQ 19 665 13097

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km W of Teramo (54892 inhabitants)
38 Km N of L'Aquila (69753 inhabitants)
59 Km E of Terni (111501 inhabitants)
60 Km E of Foligno (57155 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
75 Km W of Pescara (121014 inhabitants)
77 Km NW of Chieti (51815 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 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 2019-09-24
10:38:58
42.69 13.35 12 2019-09-24
10:43:42
Sala Sismica INGV-Roma 72722221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-24 10:38:58 ± 0.07
Latitude 42.69 ± 0.00
Longitude 13.35 ± 0.00
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72722221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 369
Semi-minor axis of confidence ellipse (meter) 85
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 263
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.06205
Epicentral distance of station farthest from the epicenter (degree) 0.33365
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 72722221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-24 10:43:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2019-09-24T10:39:10.53 0.3 undecidable manual S 270 0.3336 92 0.1 72
IV.MC2.EHZ. 2019-09-24T10:39:08.17 0.3 undecidable manual S 332 0.2482 94 0.27 70
IV.RM33.EHZ. 2019-09-24T10:39:06.77 0.3 undecidable manual S 208 0.2077 96 0.07 74
IV.NRCA.HHZ. 2019-09-24T10:39:06.96 0.1 undecidable manual S 310 0.223 95 -0.18 96
IV.MMO1.HNZ. 2019-09-24T10:39:06.73 0.6 undecidable manual S 356 0.2077 96 0.03 49
IV.TERO.HHZ. 2019-09-24T10:39:06.27 0.3 undecidable manual S 110 0.1996 96 -0.2 73
IV.GAVE.EHZ. 2019-09-24T10:39:04.94 0.1 undecidable manual P 270 0.3336 92 -0.26 92
IV.T1299.HNZ. 2019-09-24T10:39:03.25 0.6 undecidable manual S 220 0.0755 134 0.17 49
IV.MC2.EHZ. 2019-09-24T10:39:03.81 0.1 undecidable manual P 332 0.2482 94 0.06 98
IV.RM33.EHZ. 2019-09-24T10:39:03.06 0.1 undecidable manual P 208 0.2077 96 0 100
IV.NRCA.HHZ. 2019-09-24T10:39:03.16 0.1 undecidable manual P 310 0.223 95 -0.15 97
IV.TERO.HHZ. 2019-09-24T10:39:02.90 0.1 undecidable manual P 110 0.1996 96 -0.03 100
IV.SMA1.EHZ. 2019-09-24T10:39:02.57 0.1 undecidable manual S 189 0.0621 141 -0.24 98
IV.MTRA.HNZ. 2019-09-24T10:39:02.94 0.3 undecidable manual S 29 0.0737 135 -0.09 76
IV.MMO1.HNZ. 2019-09-24T10:39:02.95 0.1 undecidable manual P 356 0.2077 96 -0.1 99
IV.MTRA.HNZ. 2019-09-24T10:39:01.06 0.1 undecidable manual P 29 0.0737 135 0.12 99
IV.T1299.HNZ. 2019-09-24T10:39:01.28 0.1 undecidable manual P 220 0.0755 134 0.32 96
IV.SMA1.EHZ. 2019-09-24T10:39:01.01 0.1 undecidable manual P 189 0.0621 141 0.2 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.4 0.000289 0.1 AML other m 2019-09-24T10:39:02.94
IV.SMA1.EHE. ML:1.2 0.000205 0.1 AML other m 2019-09-24T10:39:02.94
IV.MTRA.EHE. ML:1.4 0.000283 0.44 AML other m 2019-09-24T10:39:03.24
IV.MTRA.EHN. ML:1.2 0.0002 0.54 AML other m 2019-09-24T10:39:03.00
IV.TERO.HHN. ML:0.9 5.54E-5 0.6 AML other m 2019-09-24T10:39:06.38
IV.NRCA.HHE. ML:1.3 0.0001086 0.34 AML other m 2019-09-24T10:39:07.21
IV.TERO.HHE. ML:0.8 4.595E-5 0.44 AML other m 2019-09-24T10:39:07.08
IV.NRCA.HHN. ML:1.4 0.000134 0.1 AML other m 2019-09-24T10:39:07.70
IV.RM33.EHE. ML:0.8 4.0979595E-5 0.1344 AML other m 2019-09-24T10:39:07.14
IV.RM33.EHN. ML:0.8 4.08664E-5 0.096 AML other m 2019-09-24T10:39:06.98
IV.GAVE.EHE. ML:0.8 2.696753E-5 0.5248 AML other m 2019-09-24T10:39:10.77
IV.GAVE.EHN. ML:0.8 2.669293E-5 0.1792 AML other m 2019-09-24T10:39:10.96
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