INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.7 on date 09-09-2018 and time 22:34:54 (Italy) in region 2 km E Rocca Pia (AQ)

A magnitude ML 1.7 earthquake occured in region: 2 km E Rocca Pia (AQ), on

  • 09-09-2018 20:34:54 (UTC)
  • 09-09-2018 22:34:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.93, 14 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
Rocca Pia AQ 2 178 178
Pettorano sul Gizio AQ 6 1376 1554
Pescocostanzo AQ 7 1128 2682
Cansano AQ 8 274 2956
Rivisondoli AQ 9 700 3656
Campo di Giove AQ 10 803 4459
Scanno AQ 10 1847 6306
Roccaraso AQ 11 1627 7933
Introdacqua AQ 12 2126 10059
Palena CH 13 1392 11451
Pacentro AQ 14 1174 12625
Villalago AQ 14 568 13193
Sulmona AQ 15 24557 37750
Lettopalena CH 15 358 38108
Bugnara AQ 16 1125 39233
Taranta Peligna CH 17 376 39609
Gamberale CH 17 320 39929
Anversa degli Abruzzi AQ 18 341 40270
Villetta Barrea AQ 18 653 40923
Ateleta AQ 18 1181 42104
Castel di Sangro AQ 18 6538 48642
Colledimacine CH 19 202 48844
Civitella Alfedena AQ 19 296 49140
Barrea AQ 19 726 49866
Pizzoferrato CH 20 1130 50996
Lama dei Peligni CH 20 1271 52267
Prezza AQ 20 945 53212

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km S of Chieti (51815 inhabitants)
62 Km S of Pescara (121014 inhabitants)
66 Km S of Montesilvano (53738 inhabitants)
68 Km SE of L'Aquila (69753 inhabitants)
85 Km S of Teramo (54892 inhabitants)
99 Km N of Caserta (76326 inhabitants)
100 Km E 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 1.7 2018-09-09
20:34:54
41.93 14 10 2018-09-09
20:40:49
Sala Sismica INGV-Roma 60755271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-09 20:34:54 ± 0.1
Latitude 41.93 ± 0.00
Longitude 14.00 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 60755271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 449
Semi-minor axis of confidence ellipse (meter) 447
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.10882
Epicentral distance of station farthest from the epicenter (degree) 0.54319
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 60755271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-09 20:40:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2018-09-09T20:35:13.54 0.1 undecidable manual S 161 0.5432 50 0.24 90
IV.VCEL.EHZ. 2018-09-09T20:35:11.75 0.1 undecidable manual S 346 0.4784 50 0.37 89
IV.TRIV.HHZ. 2018-09-09T20:35:10.50 0.1 undecidable manual S 112 0.4398 50 0.27 92
IV.LRP.EHZ. 2018-09-09T20:35:09.55 0.1 undecidable manual S 228 0.42 50 -0.09 96
IV.MIDA.HHZ. 2018-09-09T20:35:07.71 0.1 undecidable manual S 147 0.3444 50 0.31 93
IV.T0110.HHZ. 2018-09-09T20:35:07.43 0.1 undecidable manual S 331 0.3426 50 0.09 97
IV.CERA.HHZ. 2018-09-09T20:35:07.55 0.1 undecidable manual S 178 0.3327 50 0.48 89
IV.POFI.HHZ. 2018-09-09T20:35:06.03 0.1 undecidable manual S 225 0.3031 50 -0.16 96
IV.RNI2.HHZ. 2018-09-09T20:35:05.11 0.3 undecidable manual S 154 0.2536 50 0.4 69
IV.VVLD.HHZ. 2018-09-09T20:35:05.56 0.1 undecidable manual S 258 0.2887 50 -0.18 96
IV.VAGA.HHZ. 2018-09-09T20:35:05.35 0.1 undecidable manual P 161 0.5432 50 0.02 95
IV.VCEL.EHZ. 2018-09-09T20:35:04.14 0.1 undecidable manual P 346 0.4784 50 -0.08 95
IV.TRIV.HHZ. 2018-09-09T20:35:03.00 0.1 undecidable manual P 112 0.4398 50 -0.56 85
IV.LRP.EHZ. 2018-09-09T20:35:02.91 0.1 undecidable manual P 228 0.42 50 -0.31 91
IV.POFI.HHZ. 2018-09-09T20:35:01.01 0.1 positive manual P 225 0.3031 50 -0.22 95
IV.CERA.HHZ. 2018-09-09T20:35:01.51 0.1 positive manual P 178 0.3327 50 -0.22 95
IV.MIDA.HHZ. 2018-09-09T20:35:01.58 0.1 undecidable manual P 147 0.3444 50 -0.35 92
IV.T0110.HHZ. 2018-09-09T20:35:01.67 0.1 undecidable manual P 331 0.3426 50 -0.22 95
IV.LPEL.HHZ. 2018-09-09T20:35:01.75 0.1 undecidable manual S 49 0.1781 116 -0.33 95
IV.RNI2.HHZ. 2018-09-09T20:35:00.40 0.1 undecidable manual P 154 0.2536 50 0.03 100
IV.INTR.HHZ. 2018-09-09T20:35:00.46 0.3 undecidable manual S 318 0.1088 129 0.64 66
IV.VVLD.HHZ. 2018-09-09T20:35:00.80 0.1 undecidable manual P 258 0.2887 50 -0.17 96
IV.INTR.HHZ. 2018-09-09T20:34:58.03 0.1 undecidable manual P 318 0.1088 129 0.48 93
IV.LPEL.HHZ. 2018-09-09T20:34:58.68 0.1 positive manual P 49 0.1781 116 -0.17 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.INTR.HNE. ML:2.2 0.001905 0.24 AML other m 2018-09-09T20:35:00.84
IV.INTR.HHE. ML:2.1 0.001365 0.24 AML other m 2018-09-09T20:35:00.84
IV.INTR.HNN. ML:2.2 0.002025 1.02 AML other m 2018-09-09T20:35:00.94
IV.INTR.HHN. ML:2.2 0.00208 1.02 AML other m 2018-09-09T20:35:00.94
IV.LPEL.HHN. ML:2.2 0.001107 1.28 AML other m 2018-09-09T20:35:02.99
IV.LPEL.HHE. ML:2.1 0.000961 0.88 AML other m 2018-09-09T20:35:03.15
IV.VVLD.HHE. ML:1.4 0.00010095 0.42 AML other m 2018-09-09T20:35:05.93
IV.VVLD.HHN. ML:1.4 0.0001125 0.48 AML other m 2018-09-09T20:35:06.01
IV.RNI2.HHN. ML:1.7 0.000258 1.08 AML other m 2018-09-09T20:35:07.21
IV.RNI2.HNN. ML:1.7 0.0002485 0.32 AML other m 2018-09-09T20:35:07.22
IV.RNI2.HHE. ML:1.7 0.000256 0.16 AML other m 2018-09-09T20:35:07.30
IV.RNI2.HNE. ML:1.7 0.0002405 0.18 AML other m 2018-09-09T20:35:07.31
IV.POFI.HHE. ML:1.4 0.0001175 1.34 AML other m 2018-09-09T20:35:07.77
IV.MIDA.HHE. ML:1.8 0.000205 0.86 AML other m 2018-09-09T20:35:08.59
IV.POFI.HHN. ML:1.4 9.685E-5 0.4 AML other m 2018-09-09T20:35:08.09
IV.MIDA.HHN. ML:1.6 0.00016 0.4 AML other m 2018-09-09T20:35:08.91
IV.T0110.HHN. ML:1.9 0.000313 0.98 AML other m 2018-09-09T20:35:08.41
IV.CERA.HHN. ML:1.7 0.0001995 0.26 AML other m 2018-09-09T20:35:09.27
IV.LRP.EHE. ML:1.4 6.92E-5 0.24 AML other m 2018-09-09T20:35:10.49
IV.T0110.HHE. ML:2 0.0003235 0.82 AML other m 2018-09-09T20:35:11.78
IV.TRIV.HHN. ML:1.1 3.375E-5 0.42 AML other m 2018-09-09T20:35:11.76
IV.LRP.EHN. ML:1.4 7.88E-5 1.14 AML other m 2018-09-09T20:35:12.04
IV.CERA.HHE. ML:1.6 0.000164 0.58 AML other m 2018-09-09T20:35:12.69
IV.VCEL.EHN. ML:1.9 0.0001825 0.54 AML other m 2018-09-09T20:35:15.20
IV.TRIV.HHE. ML:1.1 3.565E-5 0.5 AML other m 2018-09-09T20:35:15.85
IV.VCEL.EHE. ML:2 0.0002325 1.02 AML other m 2018-09-09T20:35:15.47
IV.VAGA.HHE. ML:1.3 3.855E-5 1.02 AML other m 2018-09-09T20:35:17.88
IV.VAGA.HHN. ML:1.5 6.4E-5 1.72 AML other m 2018-09-09T20:35:17.91
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