Overall Green Earthquake alert in United States on 04 Apr 2020 01:53 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

M 4.87 in United States on 04 Apr 2020 01:53 UTC

Hazard models

EQ parameters

Shakemap

Tsunami

Event summary

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude:	4.9M
Depth:	10.64 Km
Lat/Lon:	33.4933319 , -116.5035019
Event Date:	04 Apr 2020 01:53 UTC 03 Apr 2020 18:53 Local
Exposed Population:	Less than 100 people in MMI VI 4490000 people within 100km
Source:	CALTECH ci39126079
Inserted at:	05 Apr 2020 01:57 UTC
INFORM Coping capacity of the alert score	2.2 (United States)

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		GDACS score
CALTECH	0		0
ci39126079	Scaled population (raster)	0
	C1 shakemap	-0.59
	C2 shakemap	0.53
	Country Vulnerability	0
	INFORM_normalised	0.65

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1303901		0	04 Apr 2020 01:53	4.64M, 10.64km	6.93	N/A (in MMI>=VII)		00:03	CALTECH
1303903		0	04 Apr 2020 01:53	4.87M, 10.64km	6.52	N/A (in MMI>=VII)		1d 00:03	CALTECH

The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.

The episode that has the last updated information.

* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened in United States , State of California (population 30,971,320) . The nearest places are Ribbonwood, Nightingale, Alpine Village, Taylor, Pinyon Crest, Anza, Thomas Mountain, San Ignacio, Cahuilla Hills, Eagles Nest, and Stallion Oaks.

Radius	Population
100 km	4.5 million people
75 km	1.6 million people
50 km	460000 people
20 km	2800 people
10 km	<1000 people
5 km	no people
2 km	no people

Affected Provinces

Region Province	Country	Population
California	United States	31 million people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Ribbonwood	California	United States	Village	-	9 km
Nightingale	California	United States	Village	-	11 km
Alpine Village	California	United States	Village	<1000 people	13 km
Taylor	California	United States	Village	-	14 km
Pinyon Crest	California	United States	Village	-	14 km
Anza	California	United States	Village	-	17 km
Thomas Mountain	California	United States	Village	-	17 km
San Ignacio	California	United States	Village	-	21 km
Cahuilla Hills	California	United States	Village	-	23 km
Eagles Nest	California	United States	Village	-	24 km
Warner Springs	California	United States	Village	-	26 km
La Quinta	California	United States	Village	24000 people	26 km
Holcomb Village	California	United States	Village	-	27 km
San Ysidro	California	United States	Village	-	27 km
Indian Wells	California	United States	Village	3800 people	28 km
Borrego Springs	California	United States	Village	2500 people	28 km
Hellhole Palms	California	United States	Village	-	29 km
Palm Desert	California	United States	Village	41000 people	29 km
Oak Grove	California	United States	Village	-	29 km
Rancho Mirage	California	United States	Village	13000 people	30 km
Vista Santa Rosa	California	United States	Village	-	30 km
Mountain Center	California	United States	Village	-	31 km
Valerie	California	United States	Village	-	31 km
Silver Dons Mobile Home Park	California	United States	Village	-	31 km
Ranchita	California	United States	Village	-	31 km
Desert Hills Trailer Park	California	United States	Village	-	32 km
Palm Desert Country	California	United States	Village	11000 people	33 km
Aguanga	California	United States	Village	-	33 km
Bermuda Palms Mobile Park	California	United States	Village	-	33 km
Martinez	California	United States	Village	-	34 km
Idyllwild	California	United States	Village	-	34 km
San Felipe	California	United States	Village	-	34 km
Palm Springs	California	United States	Village	43000 people	34 km
Idylwood	California	United States	Village	-	34 km
Bermuda Dunes	California	United States	Village	6200 people	34 km
Sandy Korner	California	United States	Village	-	34 km
Fern Valley	California	United States	Village	-	34 km
Pine Cove	California	United States	Village	5700 people	35 km
Saddle Junction	California	United States	Village	-	35 km
Desert Lodge	California	United States	Village	-	35 km
Myoma	California	United States	Village	-	36 km
Arabian Gardens Mobile Home Park	California	United States	Village	-	36 km
Desert View	California	United States	Village	-	36 km
Coachella	California	United States	Village	23000 people	37 km
Indio	California	United States	Village	49000 people	37 km
Thousand Palms	California	United States	Village	5100 people	37 km
Shadow Ridge Creek	California	United States	Village	-	37 km
Thermal	California	United States	Village	-	38 km
Cathedral City	California	United States	Village	43000 people	38 km
Lake Henshaw	California	United States	Village	-	38 km
Morettis Junction	California	United States	Village	-	38 km
Oasis	California	United States	Village	-	38 km
Radec	California	United States	Village	-	38 km
Rimlon	California	United States	Village	-	39 km
Palomar Mountain	California	United States	Village	-	40 km
Biskra Palms	California	United States	Village	-	40 km
Willis Palms	California	United States	Village	-	40 km
La Jolla Amago	California	United States	Village	-	41 km
Mecca	California	United States	Village	5400 people	41 km
Hidden Palms	California	United States	Village	-	41 km
Sage	California	United States	Village	-	41 km
Pine Wood	California	United States	Village	-	42 km
Salvia	California	United States	Village	-	42 km
Mesa Grande	California	United States	Village	-	43 km
Butterfield Lake Estates	California	United States	Village	-	43 km
Sycamore Hills	California	United States	Village	-	43 km
Coolidge Springs	California	United States	Village	-	44 km
Scissors Crossing	California	United States	Village	-	44 km
Sycamore Springs	California	United States	Village	-	44 km
Glenoak Hills	California	United States	Village	-	45 km
Oakridge Ranches	California	United States	Village	-	45 km
Garnet	California	United States	Village	-	45 km
Santa Ysabel	California	United States	Village	-	46 km
Lake Crest Estates	California	United States	Village	-	46 km
Wynola	California	United States	Village	-	46 km
Whispering Pines	California	United States	Village	-	46 km
Sky Valley	California	United States	Village	-	46 km
Valle Vista	California	United States	Village	10000 people	46 km
Glenoaks Country	California	United States	Village	-	47 km
Snow Creek	California	United States	Village	-	47 km
Kentwood-In-The-Pines	California	United States	Village	-	47 km
Banner	California	United States	Village	-	47 km
Julian	California	United States	Village	1600 people	47 km
Dos Palmas Corners	California	United States	Village	-	48 km
North Palm Springs	California	United States	Village	-	48 km
Rincon	California	United States	Village	-	48 km
Ramona Bowl	California	United States	Village	-	48 km
Desert Camp	California	United States	Village	-	49 km
East Hemet	California	United States	Village	15000 people	49 km
Pauma Valley	California	United States	Village	-	49 km
High Acres Haciendas	California	United States	Village	-	49 km
Witch Creek	California	United States	Village	-	49 km
Indian Oaks	California	United States	Village	-	50 km
White Water	California	United States	Village	-	50 km
Salton City	California	United States	Village	<1000 people	50 km
Valle de los Caballos	California	United States	Village	-	50 km
Hemet	California	United States	Village	59000 people	51 km
Pine Hills	California	United States	Village	-	51 km
West Palm Springs	California	United States	Village	-	51 km
Desert Hot Springs	California	United States	Village	17000 people	52 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)	Distance
Kelly		219				0	24 km
Landells		287				0	27 km
Lake Riverside Estates		1039				0	27 km
Warner Springs Gliderport		879				0	28 km
Borrego Valley	BXS	158				0	31 km
Eisenhower Medical Center		71				0	32 km
Ward Ranch		762				0	32 km
John F Kennedy Memorial Hospital		unknown				0	34 km
Thermal	TRM	-36	Civ.	Paved	Yes	6800	35 km
Bermuda Dunes	UDD	22	Civ.	Paved	Yes	5000	35 km
Ernst Field		872				0	37 km
Palm Springs Regional	PSP	141	Civ.	Paved	Yes	9300	37 km
Borrego Air Ranch		175				0	40 km
Loma Madera Ranch		1029				0	44 km
Clark Ranch Airpark		677				0	44 km
Hoffman (Private)		945				0	45 km
Hunt's Sky Ranch		704				0	46 km
Lyall-Roberts		282				0	49 km
Devers Substation		351				0	50 km
Hemet Valley Hospital Helistop		381				0	51 km
Ocotillo		49				0	51 km
Hoag		503				0	52 km
Flying T Ranch		762				0	52 km
Billy Joe		411				0	53 km
Hemet Ryan	HMT	461	Civ.	Paved	Yes	4300	55 km
Banning Municipal	BNG	676	Civ.	Paved	No	5200	58 km
Lake Wohlford Resort		501				0	58 km
Salton Sea	SAS	-26	Civ.	Unpaved	No	5000	58 km
Desert Air Sky Ranch		unknown				0	59 km
Rancho Vallecito		512				0	59 km
French Valley	RBK	411				0	59 km
Pines Airpark		433				0	59 km
Blackinton		352				0	61 km
Rancho California		309				0	61 km
Ramona		425	Civ.	Paved	Yes	4000	63 km
Agua Caliente Springs		372				0	63 km
Sce San Jacinto Valley Service Center		452				0	66 km
Inland Valley Reg Medical Center		404				0	69 km
Yucca Valley		983				0	71 km
Fallbrook Community Airpark		216				0	71 km
Pat Coyle Memorial		183				0	71 km
Perris Valley		431				0	73 km
Moronga Basin Chp		757				0	74 km
Wolfranch		610				0	74 km
Pomerado Hospital		198				0	75 km
Skylark Field		382				0	76 km
Chiriaco Summit		522				0	76 km
Hi Desert		751				0	77 km
University Medical Center		476				0	79 km
Tri-city Hospital		79				0	81 km
Camp Pendleton Mcas		24	Mil.	Paved	Yes	6000	82 km
March AFB	RIV	469	Mil.	Paved	Yes	13300	82 km
McClellan Palomar	CLD	100	Civ.	Paved	Yes	4900	83 km
On The Rocks		808				0	83 km
Julian Hinds Pump Plant Airstrip		407				0	84 km
Oceanside Municipal	OCN	9				0	85 km
Scripps Hospital East County		180				0	85 km
Cones Field		549				0	85 km
Gillespie Field	SEE	117	Civ.	Paved	Yes	5300	86 km
Crosswinds		559				0	88 km
Mc Conville Airstrip		792				0	88 km
Twentynine Palms	TNP	581	Civ.	Paved	Yes	5500	88 km
Redlands Municipal		479				0	89 km
Big Bear City	RBF	2057				0	91 km
Miramar NAS	NKX	146	Mil.	Paved	Yes	12000	91 km
Dick Dale Skyranch		547				0	92 km
Grossmont Hospital		193				0	92 km
Twentynine Palms Eaf		626	Mil.	Unpaved	Yes	8000	93 km
Loma Linda University Medical Center		373				0	94 km
Valley Vista		1027				0	94 km
Lake Mathews		422				0	94 km
Emory Ranch		146				0	94 km
Torrey Pines Corporate Helistop		131				0	95 km
Sce Palm Springs District		91				0	95 km
Norton AFB	SBD	353	Civ.	Paved	Yes	10000	95 km
Reider Ranch		809				0	96 km
Montgomery Field	MYF	129	Civ.	Paved	Yes	4600	96 km
Johnson		276				0	96 km
Riverside Metro Center		290				0	97 km
Sce San Onofre		29				0	99 km
San Bernardino County Medical Center		343				0	100 km
Calipatria Municipal	CLR	-55	Civ.	Paved	No	3400	100 km

Ports

Name	LOCODE	Country	Distance
Oceanside	USXJX	Wake Island	89 km

Dams

Reservoir	Dam Name	River	Year	Distance
	Lake Hemet	Trib. San Jacinto River	1895	27 km
Lake Henshaw	Henshaw	San Luis Rey River	1923	37 km
	Vail	Temecula Creek	1949	44 km
	Sutherland	Santa Ysabel Creek	1954	49 km
	Robert A. Skinner	Tucalota Creek	1973	54 km
	Diamond Valley Lake	Domenigoni Valley Creek	2000	56 km
	Cuyamaca	Boulder Creek	1887	56 km
	Ramona	Green Val Road Creek	1988	69 km
	El Capitan	San Diego River	1934	73 km
	Perris	Bernasconi Pass	1973	74 km
	Railroad Canyon	San Jacinto River	1928	74 km
	San Vicente	San Vicente Creek	1943	75 km
	Lake Hodges	San Dieguito River	1918	76 km
Lake Jennings	Chet Harritt	Quail Can Creek	1962	79 km
	Lake Loveland	Sweetwater River	1945	83 km
	Morena	Cottonwood Creek	1912	90 km
	Barrett	Cottonwood Creek	1922	91 km
Big Bear Lake	Bear Valley	Bear Creek	1911	94 km
	Mathews	Trib. Cajalco Creek	1938	96 km

Nuclear plants

Name	Country	Reactors	Distance
SAN ONOFRE	UNITED STATES	3	99 km

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.

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