Earthquake with magnitude of ML 1.8 on date 18-01-2017 and time 22:25:15 (Italy) in region 4 km S Montereale (AQ)

A magnitude ML 1.8 earthquake occured in region: 4 km S Montereale (AQ), on

  • 18-01-2017 21:25:15 (UTC)
  • 18-01-2017 22:25:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.49, 13.25 at 13 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Montereale AQ 4 2581 2581
Cagnano Amiterno AQ 4 1369 3950
Barete AQ 5 737 4687
Capitignano AQ 6 665 5352
Pizzoli AQ 7 4326 9678
Borbona RI 10 617 10295
Campotosto AQ 13 542 10837
Posta RI 13 694 11531
Scoppito AQ 13 3727 15258
Antrodoco RI 16 2588 17846
Cittareale RI 16 482 18328
Amatrice RI 16 2657 20985
Micigliano RI 16 127 21112
Borgo Velino RI 18 972 22084
L'Aquila AQ 20 69753 91837

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of L'Aquila (69753 inhabitants)
42 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
68 Km SE of Foligno (57155 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
69 Km NE of Guidonia Montecelio (88673 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
77 Km W of Chieti (51815 inhabitants)
80 Km W of Pescara (121014 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
97 Km NE of Velletri (53303 inhabitants)
98 Km SE of Perugia (166134 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 1000 ML 1.8 2017-01-18
21:25:15
42.49 13.25 13 2019-07-19
13:20:44
Bollettino Sismico Italiano INGV 56418451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-18 21:25:15 ± 0.09
Latitude 42.49 ± 0.00
Longitude 13.25 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 56418451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 429
Semi-minor axis of confidence ellipse (meter) 137
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 235
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
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) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.02968
Epicentral distance of station farthest from the epicenter (degree) 0.57467
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:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 56418451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-05-03 08:16:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GUMA.HHZ. 2017-01-18T21:25:34.24 0.3 undecidable manual S 6 0.5747 92 -0.27 64
IV.T1217.EHZ. 2017-01-18T21:25:27.23 0.6 undecidable manual S 314 0.3202 94 0.26 45
IV.GUMA.HHZ. 2017-01-18T21:25:26.49 0.3 undecidable manual P 6 0.5747 92 0.22 65
IV.FIAM.HHN. 2017-01-18T21:25:24.69 0.6 undecidable manual S 203 0.2419 97 0.02 48
IV.GIGS.HHZ. 2017-01-18T21:25:24.84 0.6 undecidable manual S 99 0.2437 97 0.14 47
IV.T1218.EHZ. 2017-01-18T21:25:23.43 0.6 undecidable manual S 332 0.2032 99 -0.1 48
IV.LNSS.HHZ. 2017-01-18T21:25:23.32 0.6 undecidable manual S 306 0.1889 101 0.23 47
IV.CAMP.HHE. 2017-01-18T21:25:21.83 0.6 undecidable manual S 69 0.1277 115 0.45 45
IV.T1217.EHZ. 2017-01-18T21:25:21.83 0.3 undecidable manual P 314 0.3202 94 -0.08 70
IV.GIGS.HHZ. 2017-01-18T21:25:20.65 0.6 undecidable manual P 99 0.2437 97 0.04 48
IV.FIAM.HHN. 2017-01-18T21:25:20.48 0.3 undecidable manual P 203 0.2419 97 -0.11 71
IV.T1247.HHZ. 2017-01-18T21:25:19.84 0.6 undecidable manual S 142 0.0621 143 -0.03 50
IV.LNSS.HHZ. 2017-01-18T21:25:19.73 0.1 undecidable manual P 306 0.1889 101 0.05 97
IV.RM33.EHZ. 2017-01-18T21:25:19.35 0.6 undecidable manual S 307 0.0297 162 -0.07 49
IV.T1218.EHZ. 2017-01-18T21:25:19.79 0.3 undecidable manual P 332 0.2032 99 -0.14 71
IV.CAMP.HHE. 2017-01-18T21:25:18.29 0.3 undecidable manual P 69 0.1277 115 -0.4 69
IV.RM33.EHZ. 2017-01-18T21:25:17.62 0.1 undecidable manual P 307 0.0297 162 0.06 100
IV.T1247.HHZ. 2017-01-18T21:25:17.76 0.3 undecidable manual P 142 0.0621 143 -0.06 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNE. ML:2 0.0013195735 0.1408 AML other m 2017-01-18T21:25:19.88
IV.RM33.EHE. ML:2 0.001293645 0.1408 AML other m 2017-01-18T21:25:19.89
IV.RM33.EHN. ML:1.8 0.000940124 0.256 AML other m 2017-01-18T21:25:19.39
IV.RM33.HNN. ML:1.8 0.00096383345 0.2816 AML other m 2017-01-18T21:25:19.38
IV.T1247.HHE. ML:2 0.0011646837 0.0896 AML other m 2017-01-18T21:25:20.06
IV.T1247.HHN. ML:1.9 0.0009320531 0.1408 AML other m 2017-01-18T21:25:20.19
IV.LNSS.HHE. ML:2 0.00065609315 0.1408 AML other m 2017-01-18T21:25:24.08
IV.LNSS.HHN. ML:2.2 0.0010965845 0.1536 AML other m 2017-01-18T21:25:23.67
IV.T1218.EHE. ML:1.4 0.00017387735 0.064 AML other m 2017-01-18T21:25:24.81
IV.T1218.HNN. ML:1.6 0.0002225545 0.2048 AML other m 2017-01-18T21:25:19.05
IV.T1218.EHN. ML:1.6 0.0002363201 0.384 AML other m 2017-01-18T21:25:23.44
IV.T1218.HNE. ML:1.4 0.0001774526 0.064 AML other m 2017-01-18T21:25:24.84
IV.T1217.EHN. ML:1.5 0.00011299185 0.2432 AML other m 2017-01-18T21:25:27.37
IV.T1217.HNE. ML:1.6 0.000144117645 0.1664 AML other m 2017-01-18T21:25:28.22
IV.T1217.EHE. ML:1.5 0.00012369792 0.0768 AML other m 2017-01-18T21:25:27.55
IV.GUMA.HHE. ML:2.2 0.00029265705 0.2432 AML other m 2017-01-18T21:25:35.76
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
Waveforms Seismic signals in full SEED format Download