Earthquake with magnitude of ML 1.5 on date 25-01-2017 and time 22:55:23 (Italy) in region 4 km SW Amatrice (RI)

A magnitude ML 1.5 earthquake occured in region: 4 km SW Amatrice (RI), on

  • 25-01-2017 21:55:23 (UTC)
  • 25-01-2017 22:55:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6, 13.27 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
Amatrice RI 4 2657 2657
Montereale AQ 8 2581 5238
Capitignano AQ 9 665 5903
Cittareale RI 9 482 6385
Campotosto AQ 10 542 6927
Accumoli RI 11 667 7594
Borbona RI 14 617 8211
Cagnano Amiterno AQ 15 1369 9580
Posta RI 16 694 10274
Barete AQ 16 737 11011
Pizzoli AQ 18 4326 15337
Crognaleto TE 18 1297 16634
Arquata del Tronto AP 20 1178 17812

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
61 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
79 Km W of Chieti (51815 inhabitants)
79 Km W of Pescara (121014 inhabitants)
80 Km NE of Guidonia Montecelio (88673 inhabitants)
80 Km NE of Tivoli (56533 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
97 Km E of Viterbo (67173 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 1.5 2017-01-25
21:55:23
42.6 13.27 13 2017-01-25
22:08:29
Sala Sismica INGV-Roma 39789081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-25 21:55:23 ± 0.04
Latitude 42.60 ± 0.00
Longitude 13.27 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 39789081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 275
Semi-minor axis of confidence ellipse (meter) 103
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 34
Circular confidence region, given by single value of horizontal uncertainty (meter) 270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.40469
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 39789081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-25 22:08:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2017-01-25T21:55:51.28 3.0 undecidable manual S -4.1 0
IV.T1216.EHZ. 2017-01-25T21:55:36.68 0.1 undecidable manual S 329 0.3462 93 0.21 92
IV.FIAM.HHZ. 2017-01-25T21:55:36.39 0.3 undecidable manual S 199 0.3453 93 -0.05 71
IV.ARRO.EHZ. 2017-01-25T21:55:36.97 0.1 undecidable manual S 268 0.3687 93 -0.16 92
IV.T1215.EHZ. 2017-01-25T21:55:36.78 0.1 undecidable manual S 305 0.3579 93 -0.02 96
IV.T1211.EHZ. 2017-01-25T21:55:35.14 0.1 undecidable manual S 258 0.3094 94 -0.22 92
IV.T1220.EHZ. 2017-01-25T21:55:34.59 3.0 positive manual P -0.06 0
MN.AQU.HHZ. 2017-01-25T21:55:34.04 0.3 undecidable manual S 157 0.2617 95 0.06 73
IV.T1217.EHZ. 2017-01-25T21:55:34.15 0.1 undecidable manual S 295 0.2725 95 -0.13 95
IV.T0110.HHZ. 2017-01-25T21:55:34.45 3.0 negative manual P 0.35 0
IV.MOMA.HHZ. 2017-01-25T21:55:34.92 3.0 negative manual P 0.07 0
IV.T1245.HNZ. 2017-01-25T21:55:33.69 0.1 undecidable manual S 348 0.2671 95 -0.44 90
IV.T1222.EHZ. 2017-01-25T21:55:33.67 0.1 undecidable manual S 221 0.2572 95 -0.17 94
IV.TERO.HHZ. 2017-01-25T21:55:33.38 0.1 undecidable manual S 84 0.25 95 -0.24 95
IV.GIGS.HHZ. 2017-01-25T21:55:33.86 0.1 undecidable manual S 122 0.2671 95 -0.26 94
IV.FAGN.HHZ. 2017-01-25T21:55:32.15 0.1 undecidable manual P 144 0.4047 93 0.07 94
IV.T1212.EHZ. 2017-01-25T21:55:32.71 0.1 undecidable manual S 314 0.2257 97 -0.19 95
IV.T1215.EHZ. 2017-01-25T21:55:31.24 0.1 undecidable manual P 305 0.3579 93 -0.04 96
IV.T1216.EHZ. 2017-01-25T21:55:31.40 0.1 undecidable manual P 329 0.3462 93 0.31 90
IV.FIAM.HHZ. 2017-01-25T21:55:31.16 0.3 undecidable manual P 199 0.3453 93 0.09 71
IV.ARRO.EHZ. 2017-01-25T21:55:31.51 0.1 undecidable manual P 268 0.3687 93 0.04 96
IV.LNSS.HHZ. 2017-01-25T21:55:31.16 0.1 undecidable manual S 273 0.1664 103 -0.01 99
IV.T1211.EHZ. 2017-01-25T21:55:30.50 0.1 undecidable manual P 258 0.3094 94 0.05 97
IV.T1218.EHZ. 2017-01-25T21:55:30.00 0.1 undecidable manual S 304 0.134 112 -0.25 95
IV.T1245.HNZ. 2017-01-25T21:55:30.11 0.1 undecidable manual P 348 0.2671 95 0.37 90
IV.T1247.HHZ. 2017-01-25T21:55:30.82 0.1 undecidable manual S 171 0.1556 105 -0.04 99
IV.TERO.HHZ. 2017-01-25T21:55:29.47 0.1 undecidable manual P 84 0.25 95 0.02 97
IV.CAMP.HHZ. 2017-01-25T21:55:29.82 0.1 undecidable manual S 119 0.1205 116 -0.08 100
IV.GIGS.HHZ. 2017-01-25T21:55:29.71 0.1 undecidable manual P 122 0.2671 95 -0.02 98
IV.T1212.EHZ. 2017-01-25T21:55:29.10 0.1 undecidable manual P 314 0.2257 97 0.07 97
IV.T1222.EHZ. 2017-01-25T21:55:29.67 0.1 undecidable manual P 221 0.2572 95 0.1 97
MN.AQU.HHZ. 2017-01-25T21:55:29.29 0.3 undecidable manual P 157 0.2617 95 -0.36 68
IV.T1217.EHZ. 2017-01-25T21:55:29.84 0.1 undecidable manual P 295 0.2725 95 0.02 98
IV.RM33.EHZ. 2017-01-25T21:55:29.13 0.1 undecidable manual S 204 0.0944 127 -0.1 99
IV.T1247.HHZ. 2017-01-25T21:55:28.06 0.1 undecidable manual P 171 0.1556 105 0.21 96
IV.LNSS.HHZ. 2017-01-25T21:55:28.24 0.1 positive manual P 273 0.1664 103 0.21 96
IV.RM33.EHZ. 2017-01-25T21:55:27.16 0.1 undecidable manual P 204 0.0944 127 0.25 97
IV.CAMP.HHZ. 2017-01-25T21:55:27.55 0.1 positive manual P 119 0.1205 116 0.25 95
IV.T1218.EHZ. 2017-01-25T21:55:27.64 0.1 positive manual P 304 0.134 112 0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.AQU.HHN. ML:1.4 0.00013 1.16 AML other m 2017-01-25T21:55:35.09
MN.AQU.HHE. ML:1.4 0.0001165 0.44 AML other m 2017-01-25T21:55:36.54
IV.CAMP.HHN. ML:1 0.00010525 0.38 AML other m 2017-01-25T21:55:30.72
IV.CAMP.HHE. ML:1.2 0.00013905 1.46 AML other m 2017-01-25T21:55:32.87
IV.FAGN.HHN. ML:1.6 0.0001105 0.48 AML other m 2017-01-25T21:55:42.41
IV.FAGN.HHE. ML:1.6 0.00010565 0.64 AML other m 2017-01-25T21:55:42.17
IV.FIAM.HHE. ML:1 3.39E-5 1.48 AML other m 2017-01-25T21:55:43.20
IV.FIAM.HHN. ML:1 3.595E-5 1.34 AML other m 2017-01-25T21:55:46.20
IV.GIGS.HHE. ML:1.3 8.615E-5 0.1 AML other m 2017-01-25T21:55:34.17
IV.GIGS.HHN. ML:1.2 6.89E-5 0.08 AML other m 2017-01-25T21:55:34.13
IV.LNSS.HHN. ML:1.8 0.000425 0.32 AML other m 2017-01-25T21:55:31.31
IV.LNSS.HHE. ML:1.6 0.0002955 0.32 AML other m 2017-01-25T21:55:31.30
IV.RM33.EHN. ML:1.6 0.000428 0.32 AML other m 2017-01-25T21:55:29.28
IV.RM33.EHE. ML:1.6 0.00047 0.12 AML other m 2017-01-25T21:55:29.34
IV.RM33.HNE. ML:1.6 0.000478 0.12 AML other m 2017-01-25T21:55:29.34
IV.RM33.HNN. ML:1.6 0.000444 1.04 AML other m 2017-01-25T21:55:29.43
IV.T1211.HNE. ML:1.8 0.000254 0.66 AML other m 2017-01-25T21:55:35.43
IV.T1211.EHN. ML:2 0.0004385 0.14 AML other m 2017-01-25T21:55:35.90
IV.T1211.HNN. ML:2 0.0004475 0.14 AML other m 2017-01-25T21:55:35.90
IV.T1211.EHE. ML:1.8 0.000258 0.12 AML other m 2017-01-25T21:55:35.43
IV.T1212.EHN. ML:1.3 0.0001101 0.3 AML other m 2017-01-25T21:55:33.04
IV.T1212.EHE. ML:1.3 0.00010715 1.54 AML other m 2017-01-25T21:55:33.07
IV.T1216.EHE. ML:1.3 7.65E-5 0.82 AML other m 2017-01-25T21:55:38.34
IV.T1216.EHN. ML:1.4 8.56E-5 0.84 AML other m 2017-01-25T21:55:38.51
IV.T1218.HNE. ML:1.6 0.0003835 0.38 AML other m 2017-01-25T21:55:30.10
IV.T1218.EHE. ML:1.6 0.00038 0.4 AML other m 2017-01-25T21:55:30.10
IV.T1218.HNN. ML:1.8 0.000515 1.34 AML other m 2017-01-25T21:55:30.27
IV.T1218.EHN. ML:1.8 0.000489 1.32 AML other m 2017-01-25T21:55:30.94
IV.T1222.EHN. ML:1.5 0.000171 1.66 AML other m 2017-01-25T21:55:33.96
IV.T1222.EHE. ML:1.7 0.0002345 1.34 AML other m 2017-01-25T21:55:34.70
IV.T1247.HHE. ML:1.6 0.000313 0.8 AML other m 2017-01-25T21:55:31.52
IV.T1247.HHN. ML:1.7 0.0003895 0.42 AML other m 2017-01-25T21:55:32.37
IV.TERO.HNN. ML:1.5 0.0001515 0.22 AML other m 2017-01-25T21:55:33.47
IV.TERO.HHN. ML:1.5 0.0001645 0.22 AML other m 2017-01-25T21:55:33.47
IV.TERO.HNE. ML:1.5 0.0001635 0.12 AML other m 2017-01-25T21:55:33.57
IV.TERO.HHE. ML:1.6 0.0001825 0.1 AML other m 2017-01-25T21:55:33.57
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