Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-01-2019 and time 08:23:47 (Italy) in region 3 km SW Montereale (AQ)

A magnitude ML 2.0 earthquake occured in region: 3 km SW Montereale (AQ), on

  • 31-01-2019 07:23:47 (UTC)
  • 31-01-2019 08:23:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.51, 13.22 at 15 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.

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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 3 2581 2581
Cagnano Amiterno AQ 5 1369 3950
Borbona RI 7 617 4567
Capitignano AQ 7 665 5232
Barete AQ 8 737 5969
Posta RI 10 694 6663
Pizzoli AQ 10 4326 10989
Cittareale RI 13 482 11471
Campotosto AQ 14 542 12013
Micigliano RI 15 127 12140
Antrodoco RI 15 2588 14728
Amatrice RI 15 2657 17385
Scoppito AQ 15 3727 21112
Borgo Velino RI 17 972 22084
Castel Sant'Angelo RI 20 1308 23392

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of L'Aquila (69753 inhabitants)
43 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
65 Km SE of Foligno (57155 inhabitants)
69 Km NE of Guidonia Montecelio (88673 inhabitants)
69 Km NE of Tivoli (56533 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
80 Km W of Chieti (51815 inhabitants)
82 Km W of Pescara (121014 inhabitants)
91 Km NE of Roma (2864731 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
95 Km SE of Perugia (166134 inhabitants)
98 Km NE of Velletri (53303 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
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 2.0 2019-01-31
07:23:47		 42.51 13.22 15 2019-08-22
08:24:49		 Bollettino Sismico Italiano INGV 65245841
Rev 100 ML 2.1 2019-01-31
07:23:47		 42.5 13.22 14 2019-01-31
07:36:09		 Sala Sismica INGV-Roma 65092631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-31 07:23:47 ± 0.06
Latitude 42.51 ± 0.00
Longitude 13.22 ± 0.00
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 65245841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 86
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 207
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.0036
Epicentral distance of station farthest from the epicenter (degree) 0.70956
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 33
Type of magnitude ML
Reference to an origin 65245841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-02-05 10:37:42

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 65092631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-31 07:36:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2019-01-31T07:24:07.78 0.6 undecidable manual S 359 0.5846 94 0.32 42
IV.MOMA.HHZ. 2019-01-31T07:24:07.02 0.6 undecidable manual S 302 0.5612 94 0.26 43
IV.FDMO.HHZ. 2019-01-31T07:24:06.31 0.6 undecidable manual S 350 0.5378 94 0.23 43
IV.CESI.HHZ. 2019-01-31T07:24:06.76 0.3 undecidable manual S 335 0.5486 94 0.38 62
IV.MF5.EHZ. 2019-01-31T07:24:05.88 0.6 undecidable manual S 20 0.5126 95 0.56 40
IV.T0110.HHZ. 2019-01-31T07:24:05.14 0.6 undecidable manual S 124 0.4964 95 0.28 43
IV.CESX.HHE. 2019-01-31T07:24:04.70 0.3 undecidable manual S 283 0.4757 95 0.47 62
IV.MC2.EHZ. 2019-01-31T07:24:02.44 0.6 undecidable manual S 357 0.4047 96 0.29 44
IV.MMO1.EHZ. 2019-01-31T07:24:01.92 0.3 undecidable manual S 12 0.4002 96 -0.1 69
IV.INTR.HHE. 2019-01-31T07:24:01.31 0.6 undecidable manual P 134 0.7096 93 0.11 43
IV.CSP1.EHZ. 2019-01-31T07:23:59.15 0.6 undecidable manual P 359 0.5846 94 0.07 44
IV.TERO.HHZ. 2019-01-31T07:23:59.03 0.6 undecidable manual S 68 0.3067 99 -0.24 45
IV.NRCA.HHZ. 2019-01-31T07:23:59.70 0.3 undecidable manual S 347 0.3354 98 -0.41 65
IV.ARRO.EHZ. 2019-01-31T07:23:59.99 0.3 undecidable manual S 282 0.3408 98 -0.27 67
IV.GAVE.EHZ. 2019-01-31T07:23:58.85 0.3 undecidable manual S 308 0.3022 100 -0.27 68
IV.MOMA.HHZ. 2019-01-31T07:23:58.89 0.6 undecidable manual P 302 0.5612 94 0.21 43
IV.FDMO.HHZ. 2019-01-31T07:23:58.08 0.3 undecidable manual P 350 0.5378 94 -0.2 65
IV.GUMA.HHZ. 2019-01-31T07:23:58.92 0.3 undecidable manual P 9 0.5621 94 0.22 65
IV.MF5.EHZ. 2019-01-31T07:23:58.12 0.3 undecidable manual P 20 0.5126 95 0.27 65
IV.CESI.HHZ. 2019-01-31T07:23:58.38 0.3 undecidable manual P 335 0.5486 94 -0.08 67
IV.CESX.HHE. 2019-01-31T07:23:57.71 0.6 undecidable manual P 283 0.4757 95 0.49 41
IV.VCEL.EHZ. 2019-01-31T07:23:57.40 0.3 undecidable manual P 103 0.473 95 0.23 66
IV.FIAM.HHZ. 2019-01-31T07:23:57.76 0.6 undecidable manual S 197 0.25 103 0.15 47
IV.GIGS.HHZ. 2019-01-31T07:23:57.81 0.3 undecidable manual S 101 0.2671 102 -0.3 67
IV.T0110.HHZ. 2019-01-31T07:23:57.65 0.3 undecidable manual P 124 0.4964 95 0.07 68
IV.MC2.EHZ. 2019-01-31T07:23:55.98 0.6 undecidable manual P 357 0.4047 96 -0.04 46
IV.MMO1.EHZ. 2019-01-31T07:23:55.76 0.1 undecidable manual P 12 0.4002 96 -0.18 90
IV.FAGN.HHZ. 2019-01-31T07:23:55.90 1.0 undecidable manual P 132 0.3615 97 0.62 20
IV.LNSS.HHZ. 2019-01-31T07:23:54.96 0.3 undecidable manual S 306 0.1619 116 -0.19 71
IV.ARRO.EHZ. 2019-01-31T07:23:54.82 0.3 undecidable manual P 282 0.3408 98 -0.1 69
IV.SMA1.EHZ. 2019-01-31T07:23:54.98 0.3 undecidable manual S 35 0.1511 118 0.13 72
IV.GAVE.EHZ. 2019-01-31T07:23:54.00 0.1 negative manual P 308 0.3022 100 -0.27 90
IV.TERO.HHZ. 2019-01-31T07:23:54.06 0.1 negative manual P 68 0.3067 99 -0.3 89
IV.CAMP.HHZ. 2019-01-31T07:23:54.77 0.3 undecidable manual S 78 0.1439 120 0.1 72
IV.NRCA.HHZ. 2019-01-31T07:23:54.47 0.1 undecidable manual P 347 0.3354 98 -0.37 88
IV.T1299.HNZ. 2019-01-31T07:23:54.51 0.3 undecidable manual S 20 0.1358 122 0.04 73
IV.GIGS.HHZ. 2019-01-31T07:23:53.40 0.1 undecidable manual P 101 0.2671 102 -0.28 90
IV.FIAM.HHZ. 2019-01-31T07:23:53.37 0.3 undecidable manual P 197 0.25 103 -0.03 71
IV.RM33.HNZ. 2019-01-31T07:23:52.24 0.3 undecidable manual S 315 0.0036 178 -0.18 72
IV.CAMP.HHZ. 2019-01-31T07:23:51.77 0.1 positive manual P 78 0.1439 120 0.07 97
IV.T1299.HNZ. 2019-01-31T07:23:51.64 0.1 positive manual P 20 0.1358 122 0.06 97
IV.LNSS.HHZ. 2019-01-31T07:23:51.88 0.1 undecidable manual P 306 0.1619 116 -0.09 96
IV.SMA1.EHZ. 2019-01-31T07:23:51.93 0.1 positive manual P 35 0.1511 118 0.12 95
IV.RM33.HNZ. 2019-01-31T07:23:50.44 0.1 undecidable manual P 315 0.0036 178 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNN. ML:2.5 0.0041773975 0.16 AML other m 2019-01-31T07:23:52.30
IV.RM33.EHN. ML:2.5 0.0040603295 0.1632 AML other m 2019-01-31T07:23:52.31
IV.RM33.EHE. ML:2.3 0.0026486775 0.1408 AML other m 2019-01-31T07:23:53.33
IV.CAMP.HHN. ML:1.8 0.00045106975 0.2976 AML other m 2019-01-31T07:23:55.05
IV.LNSS.HNE. ML:2.1 0.0009026784 0.16 AML other m 2019-01-31T07:23:55.27
IV.LNSS.HHE. ML:2.1 0.0009344739 0.1376 AML other m 2019-01-31T07:23:55.26
IV.LNSS.HHN. ML:2 0.00072934835 0.2816 AML other m 2019-01-31T07:23:55.21
IV.LNSS.HNN. ML:2.1 0.0009199518 0.3872 AML other m 2019-01-31T07:23:55.03
IV.SMA1.EHE. ML:2.7 0.003636797 0.2208 AML other m 2019-01-31T07:23:55.32
IV.SMA1.EHN. ML:2.1 0.0009147955 0.2592 AML other m 2019-01-31T07:23:55.93
IV.CAMP.HHE. ML:1.6 0.0003143513 0.5376 AML other m 2019-01-31T07:23:56.05
IV.GIGS.HHE. ML:0.8 3.0459305E-5 0.16 AML other m 2019-01-31T07:23:58.62
IV.GAVE.HNE. ML:1.9 0.0003473929 0.2496 AML other m 2019-01-31T07:23:59.36
IV.NRCA.HHN. ML:2.1 0.00041057505 0.0992 AML other m 2019-01-31T07:23:59.88
IV.NRCA.HNN. ML:2 0.0003754701 0.1088 AML other m 2019-01-31T07:23:59.88
IV.GAVE.EHN. ML:1.9 0.0003308076 0.1792 AML other m 2019-01-31T07:24:00.19
IV.NRCA.HHE. ML:2.3 0.00068039495 0.1408 AML other m 2019-01-31T07:24:00.44
IV.NRCA.HNE. ML:2.3 0.00066230315 0.1216 AML other m 2019-01-31T07:24:00.44
IV.ARRO.EHN. ML:1.8 0.00024249875 0.1792 AML other m 2019-01-31T07:24:01.03
IV.GAVE.EHE. ML:2 0.00038504085 0.1792 AML other m 2019-01-31T07:24:01.65
IV.TERO.HHN. ML:1.5 0.0001189684 0.08 AML other m 2019-01-31T07:24:01.65
IV.ARRO.EHE. ML:1.8 0.00021820785 0.1792 AML other m 2019-01-31T07:24:01.84
IV.MF5.EHN. ML:2.1 0.0002861167 0.4384 AML other m 2019-01-31T07:24:06.67
IV.CESI.HHE. ML:1.6 8.6083335E-5 0.2784 AML other m 2019-01-31T07:24:07.19
IV.GUMA.HHE. ML:2.6 0.00083221195 0.32 AML other m 2019-01-31T07:24:08.12
IV.GUMA.HNE. ML:2.5 0.0005905421 0.3104 AML other m 2019-01-31T07:24:08.28
IV.GUMA.HNN. ML:2.4 0.00045123055 0.48 AML other m 2019-01-31T07:24:08.31
IV.FDMO.HHE. ML:1.4 5.255788E-5 0.2624 AML other m 2019-01-31T07:24:08.44
IV.MOMA.HHE. ML:1.9 0.0001518181 0.16 AML other m 2019-01-31T07:24:08.58
IV.CESI.HHN. ML:1.9 0.00014831465 0.3776 AML other m 2019-01-31T07:24:08.74
IV.MOMA.HNE. ML:1.9 0.000153095405 0.1792 AML other m 2019-01-31T07:24:08.58
IV.GUMA.HHN. ML:2.4 0.00048020435 0.4 AML other m 2019-01-31T07:24:08.56
IV.MOMA.HHN. ML:1.8 0.0001239349 0.24 AML other m 2019-01-31T07:24:08.76
IV.MOMA.HNN. ML:1.9 0.0001484777 0.24 AML other m 2019-01-31T07:24:08.65
IV.CSP1.EHE. ML:1.7 8.9075005E-5 0.2208 AML other m 2019-01-31T07:24:08.95
IV.FDMO.HHN. ML:1.5 5.7583945E-5 0.24 AML other m 2019-01-31T07:24:10.11
IV.RM33.HNE. ML:2.4 0.0027713835 0.1504 AML other m 2019-01-31T07:23:53.33
IV.FIAM.HHE. ML:1.4 0.000129689 0.3008 AML other m 2019-01-31T07:23:57.87
IV.FIAM.HNN. ML:1.6 0.0002163487 0.24 AML other m 2019-01-31T07:23:57.88
IV.FIAM.HHN. ML:1.4 0.00012912795 0.2784 AML other m 2019-01-31T07:23:57.87
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
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