INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 2.0 on date 31-12-2018 and time 17:28:09 (Italy) in region 3 km W Montappone (FM)

A magnitude ML 2.0 earthquake occured in region: 3 km W Montappone (FM), on

  • 31-12-2018 16:28:09 (UTC)
  • 31-12-2018 17:28:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.12, 13.44 at 26 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
Montappone FM 3 1682 1682
Falerone FM 3 3337 5019
Monte Vidon Corrado FM 4 731 5750
Sant'Angelo in Pontano MC 4 1436 7186
Massa Fermana FM 4 963 8149
Loro Piceno MC 5 2401 10550
Ripe San Ginesio MC 6 852 11402
Servigliano FM 7 2336 13738
Penna San Giovanni MC 8 1108 14846
Mogliano MC 8 4696 19542
Colmurano MC 8 1263 20805
Montegiorgio FM 8 6851 27656
Belmonte Piceno FM 9 646 28302
Urbisaglia MC 10 2628 30930
San Ginesio MC 10 3498 34428
Gualdo MC 10 815 35243
Monte San Martino MC 10 765 36008
Petriolo MC 11 1998 38006
Monteleone di Fermo FM 11 395 38401
Francavilla d'Ete FM 11 964 39365
Monsampietro Morico FM 11 659 40024
Magliano di Tenna FM 12 1452 41476
Santa Vittoria in Matenano FM 12 1330 42806
Smerillo FM 13 365 43171
Grottazzolina FM 13 3398 46569
Rapagnano FM 13 2145 48714
Montottone FM 14 979 49693
Monte San Pietrangeli FM 14 2458 52151
Camporotondo di Fiastrone MC 14 563 52714
Montelparo FM 14 778 53492
Cessapalombo MC 15 512 54004
Sarnano MC 15 3264 57268
Corridonia MC 15 15430 72698
Montefalcone Appennino FM 15 424 73122
Torre San Patrizio FM 15 2048 75170
Tolentino MC 16 20069 95239
Monte Rinaldo FM 16 379 95618
Monte Giberto FM 16 801 96419
Belforte del Chienti MC 17 1886 98305
Ortezzano FM 17 774 99079
Caldarola MC 17 1823 100902
Amandola FM 17 3629 104531
Pollenza MC 18 6618 111149
Monte Vidon Combatte FM 18 433 111582
Monte San Giusto MC 18 8191 119773
Ponzano di Fermo FM 18 1674 121447
Force AP 18 1354 122801
Comunanza AP 19 3166 125967
Petritoli FM 19 2335 128302
Macerata MC 20 42473 170775

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km S of Ancona (100861 inhabitants)
56 Km NW of Teramo (54892 inhabitants)
63 Km E of Foligno (57155 inhabitants)
85 Km E of Perugia (166134 inhabitants)
86 Km N of L'Aquila (69753 inhabitants)
87 Km SE of Fano (60888 inhabitants)
89 Km NW of Montesilvano (53738 inhabitants)
90 Km NE of Terni (111501 inhabitants)
97 Km NW of Pescara (121014 inhabitants)
97 Km SE of Pesaro (94582 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

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
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 2.0 2018-12-31
16:28:09
43.12 13.44 26 2018-12-31
16:41:08
Sala Sismica INGV-Roma 64397591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-31 16:28:09 ± 0.11
Latitude 43.12 ± 0.01
Longitude 13.44 ± 0.01
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 64397591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 554
Semi-minor axis of confidence ellipse (meter) 317
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 35
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
Epicentral distance of station farthest from the epicenter (degree) 0.77522
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 20
Magnitude information

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 64397591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-31 16:41:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAGR.HHZ. 2018-12-31T16:29:46.73 3.0 undecidable manual Pg 16.299999 0
IV.ESML.HHZ. 2018-12-31T16:29:35.17 3.0 negative manual Pn 3.98 0
IV.SGTA.HHZ. 2018-12-31T16:29:24.59 3.0 undecidable manual Sg 6.85 0
IV.NDIM.HNZ. 2018-12-31T16:29:22.96 3.0 undecidable manual Sn 3.61 0
SI.BOSI.HHZ. 2018-12-31T16:29:15.42 3.0 positive manual Pg 10.51 0
ST.OZOL.EHZ. 2018-12-31T16:29:11.54 3.0 negative manual Pg 6.65 0
IV.GATE.HHZ. 2018-12-31T16:29:04.86 3.0 undecidable manual Sn -0.51 0
IT.VNF1.HGZ. 2018-12-31T16:29:01.77 3.0 undecidable manual Sg 2.57 0
IV.MCRV.HHZ. 2018-12-31T16:29:00.10 3.0 undecidable manual Pg 9.07 0
IV.MTMR.HNZ. 2018-12-31T16:28:57.67 3.0 positive manual Pg 9.1 0
IV.CAFE.HHZ. 2018-12-31T16:28:50.98 3.0 undecidable manual Pn 2.47 0
IV.CRE.HHZ. 2018-12-31T16:28:46.19 3.0 undecidable manual Sn 0.09 0
IV.GATE.HHZ. 2018-12-31T16:28:42.29 3.0 negative manual Pn 1.19 0
IV.ATCC.EHZ. 2018-12-31T16:28:30.68 0.3 undecidable manual S 276 0.5855 106 0.39 63
IV.FOSV.EHZ. 2018-12-31T16:28:29.04 0.3 undecidable manual S 289 0.5225 108 0.55 60
IV.TERO.HHZ. 2018-12-31T16:28:29.33 3.0 undecidable manual S -0.35 0
IV.CESI.HHZ. 2018-12-31T16:28:25.54 0.3 undecidable manual S 253 0.4074 113 0.23 68
IV.PIEI.HHZ. 2018-12-31T16:28:24.78 0.1 undecidable manual P 302 0.7752 101 -0.06 87
IV.NRCA.HHZ. 2018-12-31T16:28:24.48 0.3 undecidable manual S 219 0.375 115 0.05 71
IV.SNTG.HHZ. 2018-12-31T16:28:24.81 0.3 undecidable manual S 290 0.3858 115 0.09 69
IV.FEMA.HNE. 2018-12-31T16:28:23.37 0.3 undecidable manual S 240 0.3274 119 0.21 69
IT.MTCL.HGE. 2018-12-31T16:28:23.38 0.6 undecidable manual S 248 0.3462 118 -0.29 45
IV.EL6.EHZ. 2018-12-31T16:28:23.27 0.3 undecidable manual S 310 0.3202 120 0.29 67
IV.MML1.HNN. 2018-12-31T16:28:23.56 0.3 undecidable manual S 268 0.3408 118 0.04 71
IV.MC2.EHZ. 2018-12-31T16:28:22.22 0.3 undecidable manual S 221 0.2806 124 0.23 70
IV.RM33.EHZ. 2018-12-31T16:28:22.54 3.0 undecidable manual P -0.2 0
IV.FDMO.HHZ. 2018-12-31T16:28:21.54 0.1 undecidable manual S 251 0.2707 125 -0.22 94
IV.SSFR.HHZ. 2018-12-31T16:28:21.15 0.6 positive manual P 303 0.5702 106 -0.29 43
IV.ATCC.EHZ. 2018-12-31T16:28:21.66 0.3 negative manual P 276 0.5855 106 -0.03 68
IV.ASSB.HHZ. 2018-12-31T16:28:21.37 0.3 positive manual P 262 0.5747 106 -0.15 67
IV.SMA1.EHZ. 2018-12-31T16:28:20.51 3.0 undecidable manual P -0.02 0
IV.ARVD.HHZ. 2018-12-31T16:28:20.47 0.1 undecidable manual P 316 0.5198 108 -0.14 90
IV.AOI.HHE. 2018-12-31T16:28:20.03 1.0 undecidable manual P 16 0.4416 111 0.67 20
IV.FOSV.EHZ. 2018-12-31T16:28:20.66 0.6 positive manual P 289 0.5225 108 0.01 46
IV.CSP1.EHZ. 2018-12-31T16:28:19.29 0.3 undecidable manual S 259 0.1736 139 -0.31 70
IV.MF5.EHZ. 2018-12-31T16:28:19.49 0.3 undecidable manual S 174 0.1376 146 0.55 68
IV.PF6.EHN. 2018-12-31T16:28:19.21 0.3 undecidable manual S 274 0.179 138 -0.49 68
IV.GUMA.HNN. 2018-12-31T16:28:18.36 0.3 undecidable manual S 231 0.0971 155 0 75
IV.SNTG.HHZ. 2018-12-31T16:28:18.46 0.1 positive manual P 290 0.3858 115 -0.01 95
IV.CESI.HHZ. 2018-12-31T16:28:18.83 0.1 undecidable manual P 253 0.4074 113 0.01 95
IV.NRCA.HHZ. 2018-12-31T16:28:18.23 0.1 positive manual P 219 0.375 115 -0.08 93
IV.EL6.EHZ. 2018-12-31T16:28:17.45 0.1 undecidable manual P 310 0.3202 120 -0.02 96
IV.MML1.HNN. 2018-12-31T16:28:17.68 0.1 undecidable manual P 268 0.3408 118 -0.1 94
IV.OFFI.HHZ. 2018-12-31T16:28:17.93 3.0 positive manual P 0.76 0
IV.FEMA.HNE. 2018-12-31T16:28:17.72 0.1 undecidable manual P 240 0.3274 119 0.14 94
IT.MTCL.HGE. 2018-12-31T16:28:17.74 0.1 undecidable manual P 248 0.3462 118 -0.13 93
IV.FDMO.HHZ. 2018-12-31T16:28:16.57 1.0 undecidable manual P 251 0.2707 125 -0.19 23
IV.MC2.EHZ. 2018-12-31T16:28:16.90 0.3 positive manual P 221 0.2806 124 0 72
IV.CSP1.EHZ. 2018-12-31T16:28:15.35 0.1 positive manual P 259 0.1736 139 -0.17 96
IV.MF5.EHZ. 2018-12-31T16:28:15.41 1.0 undecidable manual P 174 0.1376 146 0.27 24
IV.PF6.EHN. 2018-12-31T16:28:15.33 0.1 undecidable manual P 274 0.179 138 -0.25 94
IV.GUMA.HNN. 2018-12-31T16:28:14.79 0.1 undecidable manual P 231 0.0971 155 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:2 0.0002795 1.64 AML other m 2018-12-31T16:28:26.04
IV.MF5.EHN. ML:2.4 0.0011935 0.22 AML other m 2018-12-31T16:28:19.67
IV.MF5.EHE. ML:2 0.0005965 0.14 AML other m 2018-12-31T16:28:19.64
IV.FDMO.HHE. ML:2.6 0.001465 0.18 AML other m 2018-12-31T16:28:21.72
IV.FDMO.HHN. ML:2.2 0.0005945 0.22 AML other m 2018-12-31T16:28:21.66
IV.EL6.EHE. ML:2 0.0003325 0.2 AML other m 2018-12-31T16:28:23.76
IV.NRCA.HHE. ML:2.6 0.001016 0.72 AML other m 2018-12-31T16:28:24.62
IV.NRCA.HHN. ML:2.3 0.0004995 0.14 AML other m 2018-12-31T16:28:24.57
IV.CSP1.EHN. ML:1.9 0.00040377165 0.2048 AML other m 2018-12-31T16:28:19.99
IV.EL6.EHN. ML:2.1 0.00039616105 0.1792 AML other m 2018-12-31T16:28:24.19
IV.NRCA.HNN. ML:2.3 0.000537683 0.128 AML other m 2018-12-31T16:28:24.58
IV.NRCA.HNE. ML:2.5 0.00090264235 0.1408 AML other m 2018-12-31T16:28:24.63
IV.SNTG.HNN. ML:2 0.0002482622 0.7296 AML other m 2018-12-31T16:28:24.97
IV.SNTG.HNE. ML:1.7 0.00014170125 0.1536 AML other m 2018-12-31T16:28:25.15
IV.SNTG.HHN. ML:2 0.00025418815 0.2816 AML other m 2018-12-31T16:28:25.11
IV.SNTG.HHE. ML:1.8 0.000167494335 0.1536 AML other m 2018-12-31T16:28:25.15
IV.CESI.HHE. ML:1.8 0.00016726428 0.2944 AML other m 2018-12-31T16:28:26.00
IV.ARVD.HHN. ML:1.1 2.351027E-5 0.1408 AML other m 2018-12-31T16:28:30.17
IV.FOSV.EHE. ML:1.7 9.037557E-5 0.2944 AML other m 2018-12-31T16:28:29.61
IV.FOSV.EHN. ML:1.7 0.000101133075 0.2432 AML other m 2018-12-31T16:28:29.95
IV.ATCC.EHE. ML:1.5 5.3655355E-5 0.1664 AML other m 2018-12-31T16:28:31.62
IV.PIEI.HHN. ML:1.4 2.946411E-5 0.2944 AML other m 2018-12-31T16:28:41.15
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://cnt.rm.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